28 lines
605 B
LLVM
28 lines
605 B
LLVM
; Check that we fold the condition of branches of the
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; form: br <condition> dest1, dest2, where dest1 == dest2.
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; RUN: opt -instcombine -S < %s | FileCheck %s
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define i32 @test(i32 %x) {
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; CHECK-LABEL: @test
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entry:
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; CHECK-NOT: icmp
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; CHECK: br i1 false
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%cmp = icmp ult i32 %x, 7
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br i1 %cmp, label %merge, label %merge
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merge:
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; CHECK-LABEL: merge:
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; CHECK: ret i32 %x
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ret i32 %x
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}
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@global = global i8 0
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define i32 @pat(i32 %x) {
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; CHECK-NOT: icmp false
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; CHECK: br i1 false
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%y = icmp eq i32 27, ptrtoint(i8* @global to i32)
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br i1 %y, label %patatino, label %patatino
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patatino:
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ret i32 %x
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}
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