307 lines
7.4 KiB
LLVM
307 lines
7.4 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -ipsccp -S | FileCheck %s
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declare void @use(i1)
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@G = internal global i32 0
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define void @test1a() {
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; CHECK-LABEL: @test1a(
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; CHECK-NEXT: [[X:%.*]] = load i32, i32* @G
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: [[C_1:%.*]] = icmp eq i32 [[X]], 20
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; CHECK-NEXT: call void @use(i1 [[C_1]])
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; CHECK-NEXT: ret void
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;
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%X = load i32, i32* @G
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%t.1 = icmp ne i32 %X, 124
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call void @use(i1 %t.1)
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%t.2 = icmp ult i32 %X, 124
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call void @use(i1 %t.2)
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%f.1 = icmp eq i32 %X, 124
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call void @use(i1 %f.1)
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%f.2 = icmp ugt i32 %X, 123
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call void @use(i1 %f.2)
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%c.1 = icmp eq i32 %X, 20
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call void @use(i1 %c.1)
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ret void
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}
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define void @test1b(i1 %c) {
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; CHECK-LABEL: @test1b(
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; CHECK-NEXT: br i1 [[C:%.*]], label [[T:%.*]], label [[F:%.*]]
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; CHECK: T:
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; CHECK-NEXT: store i32 17, i32* @G
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; CHECK-NEXT: ret void
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; CHECK: F:
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; CHECK-NEXT: store i32 123, i32* @G
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; CHECK-NEXT: ret void
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;
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br i1 %c, label %T, label %F
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T:
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store i32 17, i32* @G
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ret void
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F:
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store i32 123, i32* @G
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ret void
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}
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@H = internal global i32 0
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define void @test2a() {
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; CHECK-LABEL: @test2a(
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; CHECK-NEXT: [[X:%.*]] = load i32, i32* @H
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: [[C_1:%.*]] = icmp eq i32 [[X]], 20
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; CHECK-NEXT: call void @use(i1 [[C_1]])
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; CHECK-NEXT: ret void
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;
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%X = load i32, i32* @H
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%t.1 = icmp ne i32 %X, 124
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call void @use(i1 %t.1)
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%t.2 = icmp ult i32 %X, 124
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call void @use(i1 %t.2)
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%f.1 = icmp eq i32 %X, 124
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call void @use(i1 %f.1)
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%f.2 = icmp ugt i32 %X, 123
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call void @use(i1 %f.2)
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%c.1 = icmp eq i32 %X, 20
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call void @use(i1 %c.1)
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ret void
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}
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define void @test2b(i1 %c.1, i1 %c.2) {
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; CHECK-LABEL: @test2b(
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; CHECK-NEXT: br i1 [[C_1:%.*]], label [[T:%.*]], label [[F:%.*]]
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; CHECK: T:
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; CHECK-NEXT: br i1 [[C_2:%.*]], label [[T_1:%.*]], label [[F_1:%.*]]
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; CHECK: T.1:
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; CHECK-NEXT: store i32 17, i32* @H
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; CHECK-NEXT: ret void
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; CHECK: F.1:
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; CHECK-NEXT: store i32 20, i32* @H
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; CHECK-NEXT: ret void
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; CHECK: F:
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; CHECK-NEXT: store i32 123, i32* @H
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; CHECK-NEXT: ret void
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;
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br i1 %c.1, label %T, label %F
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T:
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br i1 %c.2, label %T.1, label %F.1
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T.1:
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store i32 17, i32* @H
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ret void
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F.1:
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store i32 20, i32* @H
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ret void
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F:
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store i32 123, i32* @H
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ret void
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}
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@I = internal global i32 0
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define void @test3a() {
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; CHECK-LABEL: @test3a(
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; CHECK-NEXT: [[X:%.*]] = load i32, i32* @I
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: [[C_1:%.*]] = icmp eq i32 [[X]], 20
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; CHECK-NEXT: call void @use(i1 [[C_1]])
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; CHECK-NEXT: ret void
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;
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%X = load i32, i32* @I
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%t.1 = icmp ne i32 %X, 124
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call void @use(i1 %t.1)
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%t.2 = icmp ult i32 %X, 124
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call void @use(i1 %t.2)
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%f.1 = icmp eq i32 %X, 124
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call void @use(i1 %f.1)
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%f.2 = icmp ugt i32 %X, 123
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call void @use(i1 %f.2)
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%c.1 = icmp eq i32 %X, 20
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call void @use(i1 %c.1)
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ret void
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}
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define void @test3b(i1 %c.1, i1 %c.2) {
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; CHECK-LABEL: @test3b(
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; CHECK-NEXT: br i1 [[C_1:%.*]], label [[T:%.*]], label [[F:%.*]]
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; CHECK: T:
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; CHECK-NEXT: br label [[EXIT:%.*]]
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; CHECK: F:
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; CHECK-NEXT: br label [[EXIT]]
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; CHECK: exit:
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; CHECK-NEXT: [[P:%.*]] = phi i32 [ 17, [[T]] ], [ 123, [[F]] ]
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; CHECK-NEXT: store i32 [[P]], i32* @I
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; CHECK-NEXT: ret void
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;
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br i1 %c.1, label %T, label %F
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T:
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br label %exit
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F:
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br label %exit
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exit:
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%p = phi i32 [ 17, %T ], [ 123, %F ]
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store i32 %p, i32* @I
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ret void
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}
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; Make sure stored values are correctly updated to overdefined.
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@J = internal global i32 0
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define void @test4a() {
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; CHECK-LABEL: @test4a(
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; CHECK-NEXT: [[X:%.*]] = load i32, i32* @J
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; CHECK-NEXT: [[C_1:%.*]] = icmp ne i32 [[X]], 124
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; CHECK-NEXT: call void @use(i1 [[C_1]])
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; CHECK-NEXT: [[C_2:%.*]] = icmp ult i32 [[X]], 124
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; CHECK-NEXT: call void @use(i1 [[C_2]])
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; CHECK-NEXT: [[C_3:%.*]] = icmp eq i32 [[X]], 124
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; CHECK-NEXT: call void @use(i1 [[C_3]])
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; CHECK-NEXT: [[C_4:%.*]] = icmp ugt i32 [[X]], 123
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; CHECK-NEXT: call void @use(i1 [[C_4]])
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; CHECK-NEXT: [[C_5:%.*]] = icmp eq i32 [[X]], 20
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; CHECK-NEXT: call void @use(i1 [[C_5]])
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; CHECK-NEXT: ret void
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;
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%X = load i32, i32* @J
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%c.1 = icmp ne i32 %X, 124
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call void @use(i1 %c.1)
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%c.2 = icmp ult i32 %X, 124
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call void @use(i1 %c.2)
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%c.3 = icmp eq i32 %X, 124
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call void @use(i1 %c.3)
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%c.4 = icmp ugt i32 %X, 123
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call void @use(i1 %c.4)
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%c.5 = icmp eq i32 %X, 20
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call void @use(i1 %c.5)
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ret void
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}
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define void @test4b(i1 %c.1, i1 %c.2, i32 %x) {
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; CHECK-LABEL: @test4b(
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; CHECK-NEXT: br i1 [[C_1:%.*]], label [[T:%.*]], label [[F:%.*]]
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; CHECK: T:
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; CHECK-NEXT: br i1 [[C_2:%.*]], label [[T_1:%.*]], label [[F_1:%.*]]
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; CHECK: T.1:
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; CHECK-NEXT: br label [[EXIT:%.*]]
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; CHECK: F.1:
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; CHECK-NEXT: br label [[EXIT]]
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; CHECK: F:
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; CHECK-NEXT: br label [[EXIT]]
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; CHECK: exit:
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; CHECK-NEXT: [[P:%.*]] = phi i32 [ 17, [[T_1]] ], [ [[X:%.*]], [[F_1]] ], [ 123, [[F]] ]
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; CHECK-NEXT: store i32 [[P]], i32* @J
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; CHECK-NEXT: ret void
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;
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br i1 %c.1, label %T, label %F
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T:
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br i1 %c.2, label %T.1, label %F.1
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T.1:
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br label %exit
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F.1:
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br label %exit
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F:
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br label %exit
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exit:
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%p = phi i32 [ 17, %T.1 ], [ %x, %F.1 ], [ 123, %F ]
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store i32 %p, i32* @J
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ret void
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}
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; Same as test1, but storing 4 different values.
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@K = internal global i32 501
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define void @test5a() {
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; CHECK-LABEL: @test5a(
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; CHECK-NEXT: [[X:%.*]] = load i32, i32* @K
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: [[C_1:%.*]] = icmp eq i32 [[X]], 510
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; CHECK-NEXT: call void @use(i1 [[C_1]])
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; CHECK-NEXT: ret void
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;
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%X = load i32, i32* @K
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%t.1 = icmp ne i32 %X, 499
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call void @use(i1 %t.1)
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%t.2 = icmp ult i32 %X, 600
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call void @use(i1 %t.2)
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%f.1 = icmp eq i32 %X, 600
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call void @use(i1 %f.1)
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%f.2 = icmp ugt i32 %X, 600
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call void @use(i1 %f.2)
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%c.1 = icmp eq i32 %X, 510
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call void @use(i1 %c.1)
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ret void
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}
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define void @test5b(i1 %c.1, i1 %c.2) {
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; CHECK-LABEL: @test5b(
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; CHECK-NEXT: br i1 [[C_1:%.*]], label [[T_1:%.*]], label [[F_1:%.*]]
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; CHECK: T.1:
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; CHECK-NEXT: br i1 [[C_2:%.*]], label [[T_2:%.*]], label [[F_2:%.*]]
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; CHECK: T.2:
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; CHECK-NEXT: store i32 500, i32* @K
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; CHECK-NEXT: ret void
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; CHECK: F.2:
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; CHECK-NEXT: store i32 510, i32* @K
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; CHECK-NEXT: ret void
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; CHECK: F.1:
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; CHECK-NEXT: br i1 [[C_2]], label [[T_3:%.*]], label [[F_3:%.*]]
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; CHECK: T.3:
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; CHECK-NEXT: store i32 520, i32* @K
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; CHECK-NEXT: ret void
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; CHECK: F.3:
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; CHECK-NEXT: store i32 530, i32* @K
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; CHECK-NEXT: ret void
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;
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br i1 %c.1, label %T.1, label %F.1
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T.1:
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br i1 %c.2, label %T.2, label %F.2
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T.2:
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store i32 500, i32* @K
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ret void
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F.2:
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store i32 510, i32* @K
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ret void
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F.1:
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br i1 %c.2, label %T.3, label %F.3
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T.3:
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store i32 520, i32* @K
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ret void
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F.3:
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store i32 530, i32* @K
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ret void
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}
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