843 lines
27 KiB
LLVM
843 lines
27 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -simplifycfg -simplifycfg-require-and-preserve-domtree=1 < %s | FileCheck %s
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target datalayout="p:40:64:64:32"
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declare void @foo1()
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declare void @foo2()
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define void @test1(i32 %V) {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: switch i32 [[V:%.*]], label [[F:%.*]] [
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; CHECK-NEXT: i32 17, label [[T:%.*]]
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; CHECK-NEXT: i32 4, label [[T]]
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; CHECK-NEXT: ]
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; CHECK: T:
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; CHECK-NEXT: call void @foo1()
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; CHECK-NEXT: ret void
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; CHECK: F:
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; CHECK-NEXT: call void @foo2()
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; CHECK-NEXT: ret void
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;
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%C1 = icmp eq i32 %V, 4 ; <i1> [#uses=1]
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%C2 = icmp eq i32 %V, 17 ; <i1> [#uses=1]
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%CN = or i1 %C1, %C2 ; <i1> [#uses=1]
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br i1 %CN, label %T, label %F
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T: ; preds = %0
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call void @foo1( )
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ret void
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F: ; preds = %0
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call void @foo2( )
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ret void
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}
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define void @test1_ptr(i32* %V) {
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; CHECK-LABEL: @test1_ptr(
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; CHECK-NEXT: [[MAGICPTR:%.*]] = ptrtoint i32* [[V:%.*]] to i40
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; CHECK-NEXT: switch i40 [[MAGICPTR]], label [[F:%.*]] [
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; CHECK-NEXT: i40 17, label [[T:%.*]]
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; CHECK-NEXT: i40 4, label [[T]]
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; CHECK-NEXT: ]
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; CHECK: T:
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; CHECK-NEXT: call void @foo1()
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; CHECK-NEXT: ret void
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; CHECK: F:
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; CHECK-NEXT: call void @foo2()
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; CHECK-NEXT: ret void
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;
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%C1 = icmp eq i32* %V, inttoptr (i32 4 to i32*)
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%C2 = icmp eq i32* %V, inttoptr (i32 17 to i32*)
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%CN = or i1 %C1, %C2 ; <i1> [#uses=1]
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br i1 %CN, label %T, label %F
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T: ; preds = %0
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call void @foo1( )
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ret void
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F: ; preds = %0
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call void @foo2( )
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ret void
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}
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define void @test1_ptr_as1(i32 addrspace(1)* %V) {
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; CHECK-LABEL: @test1_ptr_as1(
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; CHECK-NEXT: [[MAGICPTR:%.*]] = ptrtoint i32 addrspace(1)* [[V:%.*]] to i40
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; CHECK-NEXT: switch i40 [[MAGICPTR]], label [[F:%.*]] [
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; CHECK-NEXT: i40 17, label [[T:%.*]]
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; CHECK-NEXT: i40 4, label [[T]]
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; CHECK-NEXT: ]
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; CHECK: T:
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; CHECK-NEXT: call void @foo1()
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; CHECK-NEXT: ret void
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; CHECK: F:
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; CHECK-NEXT: call void @foo2()
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; CHECK-NEXT: ret void
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;
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%C1 = icmp eq i32 addrspace(1)* %V, inttoptr (i32 4 to i32 addrspace(1)*)
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%C2 = icmp eq i32 addrspace(1)* %V, inttoptr (i32 17 to i32 addrspace(1)*)
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%CN = or i1 %C1, %C2 ; <i1> [#uses=1]
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br i1 %CN, label %T, label %F
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T: ; preds = %0
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call void @foo1( )
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ret void
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F: ; preds = %0
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call void @foo2( )
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ret void
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}
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define void @test2(i32 %V) {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: switch i32 [[V:%.*]], label [[T:%.*]] [
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; CHECK-NEXT: i32 17, label [[F:%.*]]
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; CHECK-NEXT: i32 4, label [[F]]
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; CHECK-NEXT: ]
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; CHECK: T:
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; CHECK-NEXT: call void @foo1()
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; CHECK-NEXT: ret void
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; CHECK: F:
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; CHECK-NEXT: call void @foo2()
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; CHECK-NEXT: ret void
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;
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%C1 = icmp ne i32 %V, 4 ; <i1> [#uses=1]
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%C2 = icmp ne i32 %V, 17 ; <i1> [#uses=1]
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%CN = and i1 %C1, %C2 ; <i1> [#uses=1]
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br i1 %CN, label %T, label %F
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T: ; preds = %0
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call void @foo1( )
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ret void
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F: ; preds = %0
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call void @foo2( )
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ret void
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}
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define void @test3(i32 %V) {
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; CHECK-LABEL: @test3(
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; CHECK-NEXT: switch i32 [[V:%.*]], label [[F:%.*]] [
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; CHECK-NEXT: i32 4, label [[T:%.*]]
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; CHECK-NEXT: i32 17, label [[T]]
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; CHECK-NEXT: ]
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; CHECK: T:
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; CHECK-NEXT: call void @foo1()
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; CHECK-NEXT: ret void
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; CHECK: F:
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; CHECK-NEXT: call void @foo2()
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; CHECK-NEXT: ret void
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;
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%C1 = icmp eq i32 %V, 4 ; <i1> [#uses=1]
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br i1 %C1, label %T, label %N
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N: ; preds = %0
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%C2 = icmp eq i32 %V, 17 ; <i1> [#uses=1]
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br i1 %C2, label %T, label %F
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T: ; preds = %N, %0
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call void @foo1( )
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ret void
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F: ; preds = %N
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call void @foo2( )
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ret void
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}
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define i32 @test4(i8 zeroext %c) nounwind ssp noredzone {
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; CHECK-LABEL: @test4(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: switch i8 [[C:%.*]], label [[LOR_RHS:%.*]] [
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; CHECK-NEXT: i8 62, label [[LOR_END:%.*]]
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; CHECK-NEXT: i8 34, label [[LOR_END]]
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; CHECK-NEXT: i8 92, label [[LOR_END]]
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; CHECK-NEXT: ]
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; CHECK: lor.rhs:
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; CHECK-NEXT: br label [[LOR_END]]
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; CHECK: lor.end:
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; CHECK-NEXT: [[TMP0:%.*]] = phi i1 [ true, [[ENTRY:%.*]] ], [ false, [[LOR_RHS]] ], [ true, [[ENTRY]] ], [ true, [[ENTRY]] ]
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; CHECK-NEXT: [[LOR_EXT:%.*]] = zext i1 [[TMP0]] to i32
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; CHECK-NEXT: ret i32 [[LOR_EXT]]
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;
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entry:
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%cmp = icmp eq i8 %c, 62
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br i1 %cmp, label %lor.end, label %lor.lhs.false
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lor.lhs.false: ; preds = %entry
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%cmp4 = icmp eq i8 %c, 34
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br i1 %cmp4, label %lor.end, label %lor.rhs
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lor.rhs: ; preds = %lor.lhs.false
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%cmp8 = icmp eq i8 %c, 92
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br label %lor.end
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lor.end: ; preds = %lor.rhs, %lor.lhs.false, %entry
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%0 = phi i1 [ true, %lor.lhs.false ], [ true, %entry ], [ %cmp8, %lor.rhs ]
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%lor.ext = zext i1 %0 to i32
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ret i32 %lor.ext
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}
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define i32 @test5(i8 zeroext %c) nounwind ssp noredzone {
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; CHECK-LABEL: @test5(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: switch i8 [[C:%.*]], label [[LOR_RHS:%.*]] [
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; CHECK-NEXT: i8 62, label [[LOR_END:%.*]]
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; CHECK-NEXT: i8 34, label [[LOR_END]]
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; CHECK-NEXT: i8 92, label [[LOR_END]]
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; CHECK-NEXT: ]
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; CHECK: lor.rhs:
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; CHECK-NEXT: br label [[LOR_END]]
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; CHECK: lor.end:
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; CHECK-NEXT: [[TMP0:%.*]] = phi i1 [ true, [[ENTRY:%.*]] ], [ false, [[LOR_RHS]] ], [ true, [[ENTRY]] ], [ true, [[ENTRY]] ]
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; CHECK-NEXT: [[LOR_EXT:%.*]] = zext i1 [[TMP0]] to i32
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; CHECK-NEXT: ret i32 [[LOR_EXT]]
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;
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entry:
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switch i8 %c, label %lor.rhs [
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i8 62, label %lor.end
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i8 34, label %lor.end
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i8 92, label %lor.end
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]
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lor.rhs: ; preds = %entry
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%V = icmp eq i8 %c, 92
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br label %lor.end
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lor.end: ; preds = %entry, %entry, %entry, %lor.rhs
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%0 = phi i1 [ true, %entry ], [ %V, %lor.rhs ], [ true, %entry ], [ true, %entry ]
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%lor.ext = zext i1 %0 to i32
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ret i32 %lor.ext
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}
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define i1 @test6({ i32, i32 }* %I) {
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; CHECK-LABEL: @test6(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP_1_I:%.*]] = getelementptr { i32, i32 }, { i32, i32 }* [[I:%.*]], i64 0, i32 1
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; CHECK-NEXT: [[TMP_2_I:%.*]] = load i32, i32* [[TMP_1_I]], align 4
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; CHECK-NEXT: [[TMP_2_I_OFF:%.*]] = add i32 [[TMP_2_I]], -14
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; CHECK-NEXT: [[SWITCH:%.*]] = icmp ult i32 [[TMP_2_I_OFF]], 6
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; CHECK-NEXT: [[SPEC_SELECT:%.*]] = select i1 [[SWITCH]], i1 true, i1 false
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; CHECK-NEXT: ret i1 [[SPEC_SELECT]]
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;
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entry:
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%tmp.1.i = getelementptr { i32, i32 }, { i32, i32 }* %I, i64 0, i32 1 ; <i32*> [#uses=1]
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%tmp.2.i = load i32, i32* %tmp.1.i ; <i32> [#uses=6]
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%tmp.2 = icmp eq i32 %tmp.2.i, 14 ; <i1> [#uses=1]
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br i1 %tmp.2, label %shortcirc_done.4, label %shortcirc_next.0
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shortcirc_next.0: ; preds = %entry
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%tmp.6 = icmp eq i32 %tmp.2.i, 15 ; <i1> [#uses=1]
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br i1 %tmp.6, label %shortcirc_done.4, label %shortcirc_next.1
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shortcirc_next.1: ; preds = %shortcirc_next.0
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%tmp.11 = icmp eq i32 %tmp.2.i, 16 ; <i1> [#uses=1]
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br i1 %tmp.11, label %shortcirc_done.4, label %shortcirc_next.2
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shortcirc_next.2: ; preds = %shortcirc_next.1
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%tmp.16 = icmp eq i32 %tmp.2.i, 17 ; <i1> [#uses=1]
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br i1 %tmp.16, label %shortcirc_done.4, label %shortcirc_next.3
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shortcirc_next.3: ; preds = %shortcirc_next.2
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%tmp.21 = icmp eq i32 %tmp.2.i, 18 ; <i1> [#uses=1]
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br i1 %tmp.21, label %shortcirc_done.4, label %shortcirc_next.4
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shortcirc_next.4: ; preds = %shortcirc_next.3
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%tmp.26 = icmp eq i32 %tmp.2.i, 19 ; <i1> [#uses=1]
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br label %UnifiedReturnBlock
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shortcirc_done.4: ; preds = %shortcirc_next.3, %shortcirc_next.2, %shortcirc_next.1, %shortcirc_next.0, %entry
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br label %UnifiedReturnBlock
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UnifiedReturnBlock: ; preds = %shortcirc_done.4, %shortcirc_next.4
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%UnifiedRetVal = phi i1 [ %tmp.26, %shortcirc_next.4 ], [ true, %shortcirc_done.4 ] ; <i1> [#uses=1]
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ret i1 %UnifiedRetVal
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}
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define void @test7(i8 zeroext %c, i32 %x) nounwind ssp noredzone {
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; CHECK-LABEL: @test7(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[X:%.*]], 32
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; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[SWITCH_EARLY_TEST:%.*]]
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; CHECK: switch.early.test:
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; CHECK-NEXT: switch i8 [[C:%.*]], label [[IF_END:%.*]] [
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; CHECK-NEXT: i8 99, label [[IF_THEN]]
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; CHECK-NEXT: i8 97, label [[IF_THEN]]
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; CHECK-NEXT: ]
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; CHECK: if.then:
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; CHECK-NEXT: tail call void @foo1() [[ATTR2:#.*]]
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; CHECK-NEXT: ret void
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; CHECK: if.end:
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; CHECK-NEXT: ret void
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;
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entry:
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%cmp = icmp ult i32 %x, 32
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%cmp4 = icmp eq i8 %c, 97
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%or.cond = or i1 %cmp, %cmp4
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%cmp9 = icmp eq i8 %c, 99
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%or.cond11 = or i1 %or.cond, %cmp9
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br i1 %or.cond11, label %if.then, label %if.end
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if.then: ; preds = %entry
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tail call void @foo1() nounwind noredzone
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ret void
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if.end: ; preds = %entry
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ret void
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}
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define i32 @test8(i8 zeroext %c, i32 %x, i1 %C) nounwind ssp noredzone {
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; CHECK-LABEL: @test8(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br i1 [[C:%.*]], label [[N:%.*]], label [[IF_THEN:%.*]]
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; CHECK: N:
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; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[X:%.*]], 32
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; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN]], label [[SWITCH_EARLY_TEST:%.*]]
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; CHECK: switch.early.test:
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; CHECK-NEXT: switch i8 [[C:%.*]], label [[IF_END:%.*]] [
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; CHECK-NEXT: i8 99, label [[IF_THEN]]
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; CHECK-NEXT: i8 97, label [[IF_THEN]]
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; CHECK-NEXT: ]
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; CHECK: if.then:
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; CHECK-NEXT: [[A:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ 42, [[SWITCH_EARLY_TEST]] ], [ 42, [[N]] ], [ 42, [[SWITCH_EARLY_TEST]] ]
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; CHECK-NEXT: tail call void @foo1() [[ATTR2]]
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; CHECK-NEXT: ret i32 [[A]]
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; CHECK: if.end:
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; CHECK-NEXT: ret i32 0
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;
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entry:
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br i1 %C, label %N, label %if.then
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N:
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%cmp = icmp ult i32 %x, 32
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%cmp4 = icmp eq i8 %c, 97
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%or.cond = or i1 %cmp, %cmp4
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%cmp9 = icmp eq i8 %c, 99
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%or.cond11 = or i1 %or.cond, %cmp9
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br i1 %or.cond11, label %if.then, label %if.end
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if.then: ; preds = %entry
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%A = phi i32 [0, %entry], [42, %N]
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tail call void @foo1() nounwind noredzone
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ret i32 %A
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if.end: ; preds = %entry
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ret i32 0
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}
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;; This is "Example 7" from http://blog.regehr.org/archives/320
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define i32 @test9(i8 zeroext %c) nounwind ssp noredzone {
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; CHECK-LABEL: @test9(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CMP:%.*]] = icmp ult i8 [[C:%.*]], 33
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; CHECK-NEXT: br i1 [[CMP]], label [[LOR_END:%.*]], label [[SWITCH_EARLY_TEST:%.*]]
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; CHECK: switch.early.test:
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; CHECK-NEXT: switch i8 [[C]], label [[LOR_RHS:%.*]] [
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; CHECK-NEXT: i8 92, label [[LOR_END]]
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; CHECK-NEXT: i8 62, label [[LOR_END]]
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; CHECK-NEXT: i8 60, label [[LOR_END]]
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; CHECK-NEXT: i8 59, label [[LOR_END]]
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; CHECK-NEXT: i8 58, label [[LOR_END]]
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; CHECK-NEXT: i8 46, label [[LOR_END]]
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; CHECK-NEXT: i8 44, label [[LOR_END]]
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; CHECK-NEXT: i8 34, label [[LOR_END]]
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; CHECK-NEXT: i8 39, label [[LOR_END]]
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; CHECK-NEXT: ]
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; CHECK: lor.rhs:
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; CHECK-NEXT: br label [[LOR_END]]
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; CHECK: lor.end:
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; CHECK-NEXT: [[TMP0:%.*]] = phi i1 [ true, [[SWITCH_EARLY_TEST]] ], [ false, [[LOR_RHS]] ], [ true, [[ENTRY:%.*]] ], [ true, [[SWITCH_EARLY_TEST]] ], [ true, [[SWITCH_EARLY_TEST]] ], [ true, [[SWITCH_EARLY_TEST]] ], [ true, [[SWITCH_EARLY_TEST]] ], [ true, [[SWITCH_EARLY_TEST]] ], [ true, [[SWITCH_EARLY_TEST]] ], [ true, [[SWITCH_EARLY_TEST]] ], [ true, [[SWITCH_EARLY_TEST]] ]
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; CHECK-NEXT: [[CONV46:%.*]] = zext i1 [[TMP0]] to i32
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; CHECK-NEXT: ret i32 [[CONV46]]
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;
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entry:
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%cmp = icmp ult i8 %c, 33
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br i1 %cmp, label %lor.end, label %lor.lhs.false
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lor.lhs.false: ; preds = %entry
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%cmp4 = icmp eq i8 %c, 46
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br i1 %cmp4, label %lor.end, label %lor.lhs.false6
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lor.lhs.false6: ; preds = %lor.lhs.false
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%cmp9 = icmp eq i8 %c, 44
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br i1 %cmp9, label %lor.end, label %lor.lhs.false11
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lor.lhs.false11: ; preds = %lor.lhs.false6
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%cmp14 = icmp eq i8 %c, 58
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br i1 %cmp14, label %lor.end, label %lor.lhs.false16
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lor.lhs.false16: ; preds = %lor.lhs.false11
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%cmp19 = icmp eq i8 %c, 59
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br i1 %cmp19, label %lor.end, label %lor.lhs.false21
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lor.lhs.false21: ; preds = %lor.lhs.false16
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%cmp24 = icmp eq i8 %c, 60
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br i1 %cmp24, label %lor.end, label %lor.lhs.false26
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lor.lhs.false26: ; preds = %lor.lhs.false21
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%cmp29 = icmp eq i8 %c, 62
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br i1 %cmp29, label %lor.end, label %lor.lhs.false31
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lor.lhs.false31: ; preds = %lor.lhs.false26
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%cmp34 = icmp eq i8 %c, 34
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br i1 %cmp34, label %lor.end, label %lor.lhs.false36
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lor.lhs.false36: ; preds = %lor.lhs.false31
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%cmp39 = icmp eq i8 %c, 92
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br i1 %cmp39, label %lor.end, label %lor.rhs
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lor.rhs: ; preds = %lor.lhs.false36
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%cmp43 = icmp eq i8 %c, 39
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br label %lor.end
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lor.end: ; preds = %lor.rhs, %lor.lhs.false36, %lor.lhs.false31, %lor.lhs.false26, %lor.lhs.false21, %lor.lhs.false16, %lor.lhs.false11, %lor.lhs.false6, %lor.lhs.false, %entry
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%0 = phi i1 [ true, %lor.lhs.false36 ], [ true, %lor.lhs.false31 ], [ true, %lor.lhs.false26 ], [ true, %lor.lhs.false21 ], [ true, %lor.lhs.false16 ], [ true, %lor.lhs.false11 ], [ true, %lor.lhs.false6 ], [ true, %lor.lhs.false ], [ true, %entry ], [ %cmp43, %lor.rhs ]
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%conv46 = zext i1 %0 to i32
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ret i32 %conv46
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}
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define i32 @test10(i32 %mode, i1 %Cond) {
|
|
; CHECK-LABEL: @test10(
|
|
; CHECK-NEXT: br i1 [[COND:%.*]], label [[SWITCH_EARLY_TEST:%.*]], label [[F:%.*]]
|
|
; CHECK: switch.early.test:
|
|
; CHECK-NEXT: switch i32 [[MODE:%.*]], label [[T:%.*]] [
|
|
; CHECK-NEXT: i32 51, label [[F]]
|
|
; CHECK-NEXT: i32 0, label [[F]]
|
|
; CHECK-NEXT: ]
|
|
; CHECK: T:
|
|
; CHECK-NEXT: [[MERGE:%.*]] = phi i32 [ 123, [[SWITCH_EARLY_TEST]] ], [ 324, [[F]] ]
|
|
; CHECK-NEXT: ret i32 [[MERGE]]
|
|
; CHECK: F:
|
|
; CHECK-NEXT: br label [[T]]
|
|
;
|
|
%A = icmp ne i32 %mode, 0
|
|
%B = icmp ne i32 %mode, 51
|
|
%C = and i1 %A, %B
|
|
%D = and i1 %C, %Cond
|
|
br i1 %D, label %T, label %F
|
|
T:
|
|
ret i32 123
|
|
F:
|
|
ret i32 324
|
|
|
|
}
|
|
|
|
; PR8780
|
|
define i32 @test11(i32 %bar) nounwind {
|
|
; CHECK-LABEL: @test11(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: switch i32 [[BAR:%.*]], label [[IF_END:%.*]] [
|
|
; CHECK-NEXT: i32 55, label [[RETURN:%.*]]
|
|
; CHECK-NEXT: i32 53, label [[RETURN]]
|
|
; CHECK-NEXT: i32 35, label [[RETURN]]
|
|
; CHECK-NEXT: i32 24, label [[RETURN]]
|
|
; CHECK-NEXT: i32 23, label [[RETURN]]
|
|
; CHECK-NEXT: i32 12, label [[RETURN]]
|
|
; CHECK-NEXT: i32 4, label [[RETURN]]
|
|
; CHECK-NEXT: ]
|
|
; CHECK: if.end:
|
|
; CHECK-NEXT: br label [[RETURN]]
|
|
; CHECK: return:
|
|
; CHECK-NEXT: [[RETVAL_0:%.*]] = phi i32 [ 0, [[IF_END]] ], [ 1, [[ENTRY:%.*]] ], [ 1, [[ENTRY]] ], [ 1, [[ENTRY]] ], [ 1, [[ENTRY]] ], [ 1, [[ENTRY]] ], [ 1, [[ENTRY]] ], [ 1, [[ENTRY]] ]
|
|
; CHECK-NEXT: ret i32 [[RETVAL_0]]
|
|
;
|
|
entry:
|
|
%cmp = icmp eq i32 %bar, 4
|
|
%cmp2 = icmp eq i32 %bar, 35
|
|
%or.cond = or i1 %cmp, %cmp2
|
|
%cmp5 = icmp eq i32 %bar, 53
|
|
%or.cond1 = or i1 %or.cond, %cmp5
|
|
%cmp8 = icmp eq i32 %bar, 24
|
|
%or.cond2 = or i1 %or.cond1, %cmp8
|
|
%cmp11 = icmp eq i32 %bar, 23
|
|
%or.cond3 = or i1 %or.cond2, %cmp11
|
|
%cmp14 = icmp eq i32 %bar, 55
|
|
%or.cond4 = or i1 %or.cond3, %cmp14
|
|
%cmp17 = icmp eq i32 %bar, 12
|
|
%or.cond5 = or i1 %or.cond4, %cmp17
|
|
%cmp20 = icmp eq i32 %bar, 35
|
|
%or.cond6 = or i1 %or.cond5, %cmp20
|
|
br i1 %or.cond6, label %if.then, label %if.end
|
|
|
|
if.then: ; preds = %entry
|
|
br label %return
|
|
|
|
if.end: ; preds = %entry
|
|
br label %return
|
|
|
|
return: ; preds = %if.end, %if.then
|
|
%retval.0 = phi i32 [ 1, %if.then ], [ 0, %if.end ]
|
|
ret i32 %retval.0
|
|
|
|
}
|
|
|
|
define void @test12() nounwind {
|
|
; CHECK-LABEL: @test12(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[DOTOLD:%.*]] = icmp eq i32 undef, undef
|
|
; CHECK-NEXT: br i1 [[DOTOLD]], label [[BB55_US_US:%.*]], label [[MALFORMED:%.*]]
|
|
; CHECK: bb55.us.us:
|
|
; CHECK-NEXT: [[B:%.*]] = icmp ugt i32 undef, undef
|
|
; CHECK-NEXT: [[A:%.*]] = icmp eq i32 undef, undef
|
|
; CHECK-NEXT: [[OR_COND:%.*]] = or i1 [[B]], [[A]]
|
|
; CHECK-NEXT: br i1 [[OR_COND]], label [[BB55_US_US]], label [[MALFORMED]]
|
|
; CHECK: malformed:
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
entry:
|
|
br label %bb49.us.us
|
|
|
|
bb49.us.us:
|
|
%A = icmp eq i32 undef, undef
|
|
br i1 %A, label %bb55.us.us, label %malformed
|
|
|
|
bb48.us.us:
|
|
%B = icmp ugt i32 undef, undef
|
|
br i1 %B, label %bb55.us.us, label %bb49.us.us
|
|
|
|
bb55.us.us:
|
|
br label %bb48.us.us
|
|
|
|
malformed:
|
|
ret void
|
|
|
|
}
|
|
|
|
; test13 - handle switch formation with ult.
|
|
define void @test13(i32 %x) nounwind ssp noredzone {
|
|
; CHECK-LABEL: @test13(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: switch i32 [[X:%.*]], label [[IF_END:%.*]] [
|
|
; CHECK-NEXT: i32 6, label [[IF_THEN:%.*]]
|
|
; CHECK-NEXT: i32 4, label [[IF_THEN]]
|
|
; CHECK-NEXT: i32 3, label [[IF_THEN]]
|
|
; CHECK-NEXT: i32 1, label [[IF_THEN]]
|
|
; CHECK-NEXT: i32 0, label [[IF_THEN]]
|
|
; CHECK-NEXT: ]
|
|
; CHECK: if.then:
|
|
; CHECK-NEXT: call void @foo1() [[ATTR3:#.*]]
|
|
; CHECK-NEXT: br label [[IF_END]]
|
|
; CHECK: if.end:
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
entry:
|
|
%cmp = icmp ult i32 %x, 2
|
|
br i1 %cmp, label %if.then, label %lor.lhs.false3
|
|
|
|
lor.lhs.false3: ; preds = %lor.lhs.false
|
|
%cmp5 = icmp eq i32 %x, 3
|
|
br i1 %cmp5, label %if.then, label %lor.lhs.false6
|
|
|
|
lor.lhs.false6: ; preds = %lor.lhs.false3
|
|
%cmp8 = icmp eq i32 %x, 4
|
|
br i1 %cmp8, label %if.then, label %lor.lhs.false9
|
|
|
|
lor.lhs.false9: ; preds = %lor.lhs.false6
|
|
%cmp11 = icmp eq i32 %x, 6
|
|
br i1 %cmp11, label %if.then, label %if.end
|
|
|
|
if.then: ; preds = %lor.lhs.false9, %lor.lhs.false6, %lor.lhs.false3, %lor.lhs.false, %entry
|
|
call void @foo1() noredzone
|
|
br label %if.end
|
|
|
|
if.end: ; preds = %if.then, %lor.lhs.false9
|
|
ret void
|
|
}
|
|
|
|
; test14 - handle switch formation with ult.
|
|
define void @test14(i32 %x) nounwind ssp noredzone {
|
|
; CHECK-LABEL: @test14(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: switch i32 [[X:%.*]], label [[IF_END:%.*]] [
|
|
; CHECK-NEXT: i32 6, label [[IF_THEN:%.*]]
|
|
; CHECK-NEXT: i32 4, label [[IF_THEN]]
|
|
; CHECK-NEXT: i32 3, label [[IF_THEN]]
|
|
; CHECK-NEXT: i32 2, label [[IF_THEN]]
|
|
; CHECK-NEXT: i32 1, label [[IF_THEN]]
|
|
; CHECK-NEXT: i32 0, label [[IF_THEN]]
|
|
; CHECK-NEXT: ]
|
|
; CHECK: if.then:
|
|
; CHECK-NEXT: call void @foo1() [[ATTR3]]
|
|
; CHECK-NEXT: br label [[IF_END]]
|
|
; CHECK: if.end:
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
entry:
|
|
%cmp = icmp ugt i32 %x, 2
|
|
br i1 %cmp, label %lor.lhs.false3, label %if.then
|
|
|
|
lor.lhs.false3: ; preds = %lor.lhs.false
|
|
%cmp5 = icmp ne i32 %x, 3
|
|
br i1 %cmp5, label %lor.lhs.false6, label %if.then
|
|
|
|
lor.lhs.false6: ; preds = %lor.lhs.false3
|
|
%cmp8 = icmp ne i32 %x, 4
|
|
br i1 %cmp8, label %lor.lhs.false9, label %if.then
|
|
|
|
lor.lhs.false9: ; preds = %lor.lhs.false6
|
|
%cmp11 = icmp ne i32 %x, 6
|
|
br i1 %cmp11, label %if.end, label %if.then
|
|
|
|
if.then: ; preds = %lor.lhs.false9, %lor.lhs.false6, %lor.lhs.false3, %lor.lhs.false, %entry
|
|
call void @foo1() noredzone
|
|
br label %if.end
|
|
|
|
if.end: ; preds = %if.then, %lor.lhs.false9
|
|
ret void
|
|
}
|
|
|
|
; Don't crash on ginormous ranges.
|
|
define void @test15(i128 %x) nounwind {
|
|
; CHECK-LABEL: @test15(
|
|
; CHECK-NEXT: if.end:
|
|
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i128 [[X:%.*]], 2
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
%cmp = icmp ugt i128 %x, 2
|
|
br i1 %cmp, label %if.end, label %lor.false
|
|
|
|
lor.false:
|
|
%cmp2 = icmp ne i128 %x, 100000000000000000000
|
|
br i1 %cmp2, label %if.end, label %if.then
|
|
|
|
if.then:
|
|
call void @foo1() noredzone
|
|
br label %if.end
|
|
|
|
if.end:
|
|
ret void
|
|
|
|
}
|
|
|
|
; PR8675
|
|
; rdar://5134905
|
|
define zeroext i1 @test16(i32 %x) nounwind {
|
|
; CHECK-LABEL: @test16(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[X_OFF:%.*]] = add i32 [[X:%.*]], -1
|
|
; CHECK-NEXT: [[SWITCH:%.*]] = icmp ult i32 [[X_OFF]], 3
|
|
; CHECK-NEXT: [[SPEC_SELECT:%.*]] = select i1 [[SWITCH]], i1 true, i1 false
|
|
; CHECK-NEXT: ret i1 [[SPEC_SELECT]]
|
|
;
|
|
entry:
|
|
%cmp.i = icmp eq i32 %x, 1
|
|
br i1 %cmp.i, label %lor.end, label %lor.lhs.false
|
|
|
|
lor.lhs.false:
|
|
%cmp.i2 = icmp eq i32 %x, 2
|
|
br i1 %cmp.i2, label %lor.end, label %lor.rhs
|
|
|
|
lor.rhs:
|
|
%cmp.i1 = icmp eq i32 %x, 3
|
|
br label %lor.end
|
|
|
|
lor.end:
|
|
%0 = phi i1 [ true, %lor.lhs.false ], [ true, %entry ], [ %cmp.i1, %lor.rhs ]
|
|
ret i1 %0
|
|
}
|
|
|
|
; Check that we don't turn an icmp into a switch where it's not useful.
|
|
define void @test17(i32 %x, i32 %y) {
|
|
; CHECK-LABEL: @test17(
|
|
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[X:%.*]], 3
|
|
; CHECK-NEXT: [[SWITCH:%.*]] = icmp ult i32 [[Y:%.*]], 2
|
|
; CHECK-NEXT: [[OR_COND775:%.*]] = or i1 [[CMP]], [[SWITCH]]
|
|
; CHECK-NEXT: br i1 [[OR_COND775]], label [[LOR_LHS_FALSE8:%.*]], label [[RETURN:%.*]]
|
|
; CHECK: lor.lhs.false8:
|
|
; CHECK-NEXT: tail call void @foo1()
|
|
; CHECK-NEXT: ret void
|
|
; CHECK: return:
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
%cmp = icmp ult i32 %x, 3
|
|
%switch = icmp ult i32 %y, 2
|
|
%or.cond775 = or i1 %cmp, %switch
|
|
br i1 %or.cond775, label %lor.lhs.false8, label %return
|
|
|
|
lor.lhs.false8:
|
|
tail call void @foo1()
|
|
ret void
|
|
|
|
return:
|
|
ret void
|
|
|
|
}
|
|
|
|
define void @test18(i32 %arg) {
|
|
; CHECK-LABEL: @test18(
|
|
; CHECK-NEXT: bb:
|
|
; CHECK-NEXT: [[ARG_OFF:%.*]] = add i32 [[ARG:%.*]], -8
|
|
; CHECK-NEXT: [[SWITCH:%.*]] = icmp ult i32 [[ARG_OFF]], 11
|
|
; CHECK-NEXT: br i1 [[SWITCH]], label [[BB19:%.*]], label [[BB20:%.*]]
|
|
; CHECK: bb19:
|
|
; CHECK-NEXT: tail call void @foo1()
|
|
; CHECK-NEXT: br label [[BB20]]
|
|
; CHECK: bb20:
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
bb:
|
|
%tmp = and i32 %arg, -2
|
|
%tmp1 = icmp eq i32 %tmp, 8
|
|
%tmp2 = icmp eq i32 %arg, 10
|
|
%tmp3 = or i1 %tmp1, %tmp2
|
|
%tmp4 = icmp eq i32 %arg, 11
|
|
%tmp5 = or i1 %tmp3, %tmp4
|
|
%tmp6 = icmp eq i32 %arg, 12
|
|
%tmp7 = or i1 %tmp5, %tmp6
|
|
br i1 %tmp7, label %bb19, label %bb8
|
|
|
|
bb8: ; preds = %bb
|
|
%tmp9 = add i32 %arg, -13
|
|
%tmp10 = icmp ult i32 %tmp9, 2
|
|
%tmp11 = icmp eq i32 %arg, 16
|
|
%tmp12 = or i1 %tmp10, %tmp11
|
|
%tmp13 = icmp eq i32 %arg, 17
|
|
%tmp14 = or i1 %tmp12, %tmp13
|
|
%tmp15 = icmp eq i32 %arg, 18
|
|
%tmp16 = or i1 %tmp14, %tmp15
|
|
%tmp17 = icmp eq i32 %arg, 15
|
|
%tmp18 = or i1 %tmp16, %tmp17
|
|
br i1 %tmp18, label %bb19, label %bb20
|
|
|
|
bb19: ; preds = %bb8, %bb
|
|
tail call void @foo1()
|
|
br label %bb20
|
|
|
|
bb20: ; preds = %bb19, %bb8
|
|
ret void
|
|
|
|
}
|
|
|
|
define void @PR26323(i1 %tobool23, i32 %tmp3) {
|
|
; CHECK-LABEL: @PR26323(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[TOBOOL5:%.*]] = icmp ne i32 [[TMP3:%.*]], 0
|
|
; CHECK-NEXT: [[NEG14:%.*]] = and i32 [[TMP3]], -2
|
|
; CHECK-NEXT: [[CMP17:%.*]] = icmp ne i32 [[NEG14]], -1
|
|
; CHECK-NEXT: [[OR_COND:%.*]] = and i1 [[TOBOOL5]], [[TOBOOL23:%.*]]
|
|
; CHECK-NEXT: [[OR_COND1:%.*]] = and i1 [[CMP17]], [[OR_COND]]
|
|
; CHECK-NEXT: br i1 [[OR_COND1]], label [[IF_END29:%.*]], label [[IF_THEN27:%.*]]
|
|
; CHECK: if.then27:
|
|
; CHECK-NEXT: call void @foo1()
|
|
; CHECK-NEXT: unreachable
|
|
; CHECK: if.end29:
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
entry:
|
|
%tobool5 = icmp ne i32 %tmp3, 0
|
|
%neg14 = and i32 %tmp3, -2
|
|
%cmp17 = icmp ne i32 %neg14, -1
|
|
%or.cond = and i1 %tobool5, %tobool23
|
|
%or.cond1 = and i1 %cmp17, %or.cond
|
|
br i1 %or.cond1, label %if.end29, label %if.then27
|
|
|
|
if.then27: ; preds = %entry
|
|
call void @foo1()
|
|
unreachable
|
|
|
|
if.end29: ; preds = %entry
|
|
ret void
|
|
}
|
|
|
|
define void @test19(i32 %arg) {
|
|
; CHECK-LABEL: @test19(
|
|
; CHECK-NEXT: switch i32 [[ARG:%.*]], label [[ELSE:%.*]] [
|
|
; CHECK-NEXT: i32 32, label [[IF:%.*]]
|
|
; CHECK-NEXT: i32 13, label [[IF]]
|
|
; CHECK-NEXT: i32 12, label [[IF]]
|
|
; CHECK-NEXT: ]
|
|
; CHECK: if:
|
|
; CHECK-NEXT: call void @foo1()
|
|
; CHECK-NEXT: ret void
|
|
; CHECK: else:
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
%and = and i32 %arg, -2
|
|
%cmp1 = icmp eq i32 %and, 12
|
|
%cmp2 = icmp eq i32 %arg, 32
|
|
%pred = or i1 %cmp1, %cmp2
|
|
br i1 %pred, label %if, label %else
|
|
|
|
if:
|
|
call void @foo1()
|
|
ret void
|
|
|
|
else:
|
|
ret void
|
|
}
|
|
|
|
; Since %cmp1 is always false, a switch is never formed
|
|
define void @test20(i32 %arg) {
|
|
; CHECK-LABEL: @test20(
|
|
; CHECK-NEXT: [[AND:%.*]] = and i32 [[ARG:%.*]], -2
|
|
; CHECK-NEXT: [[CMP1:%.*]] = icmp eq i32 [[AND]], 13
|
|
; CHECK-NEXT: [[CMP2:%.*]] = icmp eq i32 [[ARG]], 32
|
|
; CHECK-NEXT: [[PRED:%.*]] = or i1 [[CMP1]], [[CMP2]]
|
|
; CHECK-NEXT: br i1 [[PRED]], label [[IF:%.*]], label [[ELSE:%.*]]
|
|
; CHECK: if:
|
|
; CHECK-NEXT: call void @foo1()
|
|
; CHECK-NEXT: ret void
|
|
; CHECK: else:
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
%and = and i32 %arg, -2
|
|
%cmp1 = icmp eq i32 %and, 13
|
|
%cmp2 = icmp eq i32 %arg, 32
|
|
%pred = or i1 %cmp1, %cmp2
|
|
br i1 %pred, label %if, label %else
|
|
|
|
if:
|
|
call void @foo1()
|
|
ret void
|
|
|
|
else:
|
|
ret void
|
|
}
|
|
|
|
; Form a switch when or'ing a power of two
|
|
define void @test21(i32 %arg) {
|
|
; CHECK-LABEL: @test21(
|
|
; CHECK-NEXT: switch i32 [[ARG:%.*]], label [[IF:%.*]] [
|
|
; CHECK-NEXT: i32 32, label [[ELSE:%.*]]
|
|
; CHECK-NEXT: i32 13, label [[ELSE]]
|
|
; CHECK-NEXT: i32 12, label [[ELSE]]
|
|
; CHECK-NEXT: ]
|
|
; CHECK: if:
|
|
; CHECK-NEXT: call void @foo1()
|
|
; CHECK-NEXT: ret void
|
|
; CHECK: else:
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
%and = or i32 %arg, 1
|
|
%cmp1 = icmp ne i32 %and, 13
|
|
%cmp2 = icmp ne i32 %arg, 32
|
|
%pred = and i1 %cmp1, %cmp2
|
|
br i1 %pred, label %if, label %else
|
|
|
|
if:
|
|
call void @foo1()
|
|
ret void
|
|
|
|
else:
|
|
ret void
|
|
}
|
|
|
|
; Since %cmp1 is always false, a switch is never formed
|
|
define void @test22(i32 %arg) {
|
|
; CHECK-LABEL: @test22(
|
|
; CHECK-NEXT: [[AND:%.*]] = or i32 [[ARG:%.*]], 1
|
|
; CHECK-NEXT: [[CMP1:%.*]] = icmp ne i32 [[AND]], 12
|
|
; CHECK-NEXT: [[CMP2:%.*]] = icmp ne i32 [[ARG]], 32
|
|
; CHECK-NEXT: [[PRED:%.*]] = and i1 [[CMP1]], [[CMP2]]
|
|
; CHECK-NEXT: br i1 [[PRED]], label [[IF:%.*]], label [[ELSE:%.*]]
|
|
; CHECK: if:
|
|
; CHECK-NEXT: call void @foo1()
|
|
; CHECK-NEXT: ret void
|
|
; CHECK: else:
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
%and = or i32 %arg, 1
|
|
%cmp1 = icmp ne i32 %and, 12
|
|
%cmp2 = icmp ne i32 %arg, 32
|
|
%pred = and i1 %cmp1, %cmp2
|
|
br i1 %pred, label %if, label %else
|
|
|
|
if:
|
|
call void @foo1()
|
|
ret void
|
|
|
|
else:
|
|
ret void
|
|
}
|