91 lines
2.1 KiB
LLVM
91 lines
2.1 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -tut-simplifycfg -tut-simplifycfg-version=v1 -S < %s | FileCheck %s
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; RUN: opt -tut-simplifycfg -tut-simplifycfg-version=v2 -S < %s | FileCheck %s
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; RUN: opt -tut-simplifycfg -tut-simplifycfg-version=v3 -S < %s | FileCheck %s
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define i32 @simp1() {
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; CHECK-LABEL: @simp1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: ret i32 10
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;
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entry:
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br i1 true, label %if.then, label %if.else
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if.then:
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ret i32 10
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if.else:
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ret i32 12
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}
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define i32 @simp2() {
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; CHECK-LABEL: @simp2(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: ret i32 200
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;
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entry:
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br i1 false, label %if.then, label %if.else
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if.then:
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ret i32 99
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if.else:
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ret i32 200
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}
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declare void @foo(i64)
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define i64 @merge_into_predecessor(i64 %a, i64 %b) {
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; CHECK-LABEL: @merge_into_predecessor(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[R:%.*]] = add i64 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: call void @foo(i64 [[R]])
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; CHECK-NEXT: call void @foo(i64 [[A]])
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; CHECK-NEXT: ret i64 [[R]]
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;
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entry:
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br label %bb.next
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bb.next:
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%r = add i64 %a, %b
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call void @foo(i64 %r)
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call void @foo(i64 %a)
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br label %bb.next.next
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bb.next.next:
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ret i64 %r
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}
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define i64 @merge_into_predecessor_with_phi(i64 %a, i64 %b, i1 %c) {
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; CHECK-LABEL: @merge_into_predecessor_with_phi(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: call void @foo(i64 [[B:%.*]])
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; CHECK-NEXT: [[R:%.*]] = add i64 [[A:%.*]], [[B]]
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; CHECK-NEXT: call void @foo(i64 [[R]])
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; CHECK-NEXT: call void @foo(i64 [[A]])
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; CHECK-NEXT: br i1 [[C:%.*]], label [[BB_NEXT_NEXT:%.*]], label [[BB_EXIT:%.*]]
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; CHECK: bb.next.next:
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; CHECK-NEXT: br label [[BB_EXIT]]
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; CHECK: bb.exit:
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; CHECK-NEXT: [[RET:%.*]] = phi i64 [ [[R]], [[ENTRY:%.*]] ], [ 10, [[BB_NEXT_NEXT]] ]
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; CHECK-NEXT: ret i64 [[RET]]
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;
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entry:
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call void @foo(i64 %b)
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br label %bb.next
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bb.next:
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%r = add i64 %a, %b
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call void @foo(i64 %r)
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call void @foo(i64 %a)
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br i1 %c, label %bb.next.next, label %bb.exit
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bb.next.next:
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br label %bb.exit
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bb.exit:
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%ret = phi i64 [ %r, %bb.next], [ 10, %bb.next.next]
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ret i64 %ret
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}
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