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34 lines
647 B
LLVM
34 lines
647 B
LLVM
; RUN: opt < %s -constprop -die -S | FileCheck %s
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; This is a basic sanity check for constant propogation. The add instruction
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; should be eliminated.
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define i32 @test1(i1 %B) {
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br i1 %B, label %BB1, label %BB2
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BB1:
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%Val = add i32 0, 0
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br label %BB3
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BB2:
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br label %BB3
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BB3:
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; CHECK: @test1
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; CHECK: %Ret = phi i32 [ 0, %BB1 ], [ 1, %BB2 ]
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%Ret = phi i32 [ %Val, %BB1 ], [ 1, %BB2 ]
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ret i32 %Ret
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}
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; PR6197
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define i1 @test2(i8* %f) nounwind {
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entry:
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%V = icmp ne i8* blockaddress(@test2, %bb), null
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br label %bb
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bb:
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ret i1 %V
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; CHECK: @test2
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; CHECK: ret i1 true
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}
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