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With Benjamin's recent amazing patches, we should be able to do even better things :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122978 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -2073,3 +2073,16 @@ The icmp should fold to false. This CSE opportunity is only available
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after GVN and InstCombine have run.
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//===---------------------------------------------------------------------===//
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memcpyopt should turn this:
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define i8* @test10(i32 %x) {
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%alloc = call noalias i8* @malloc(i32 %x) nounwind
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call void @llvm.memset.p0i8.i32(i8* %alloc, i8 0, i32 %x, i32 1, i1 false)
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ret i8* %alloc
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}
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into a call to calloc. We should make sure that we analyze calloc as
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aggressively as malloc though.
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//===---------------------------------------------------------------------===//
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