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dd609e912b
as it goes"). Before -std-compile-opts only got it down to %a = tail call i32 @foo(i32 0) readnone %x = tail call i32 @foo(i32 %a) readnone %y = tail call i32 @foo(i32 %a) readnone %z = icmp eq i32 %x, %y ret i1 %z while now -basicaa -gvn alone reduce it to %a = call i32 @foo(i32 0) readnone %x = call i32 @foo(i32 %a) readnone ret i1 true git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119009 91177308-0d34-0410-b5e6-96231b3b80d8
16 lines
352 B
LLVM
16 lines
352 B
LLVM
; RUN: opt < %s -basicaa -gvn -S | FileCheck %s
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declare i32 @foo(i32) readnone
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define i1 @bar() {
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; CHECK: @bar
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%a = call i32 @foo (i32 0) readnone
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%b = call i32 @foo (i32 0) readnone
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%c = and i32 %a, %b
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%x = call i32 @foo (i32 %a) readnone
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%y = call i32 @foo (i32 %c) readnone
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%z = icmp eq i32 %x, %y
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ret i1 %z
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; CHECK: ret i1 true
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}
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