forked from OSchip/llvm-project
27 lines
495 B
LLVM
27 lines
495 B
LLVM
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; RUN: opt < %s -newgvn -S | FileCheck %s
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; CHECK-LABEL: @test1
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; CHECK: ret i32 %arg
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define i32 @test1(i32 %arg) {
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%cmp = icmp sge i32 %arg, 5
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call void @llvm.assume(i1 %cmp)
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ret i32 %arg
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}
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; CHECK-LABEL: @test2
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; CHECK: ret i32 %arg
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define i32 @test2(i32 %arg, i1 %b) {
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br label %bb
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bb:
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%a = phi i32 [ 1, %0 ], [ 2, %bb ]
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%cmp = icmp eq i32 %arg, %a
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call void @llvm.assume(i1 %cmp)
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br i1 %b, label %bb, label %end
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end:
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ret i32 %arg
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}
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declare void @llvm.assume(i1 %cond)
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