From 6623d050c6f4351293bc1849e49bc0e37ec04596 Mon Sep 17 00:00:00 2001 From: Benjamin Kramer Date: Wed, 2 Oct 2013 19:06:06 +0000 Subject: SLPVectorizer: Make store chain finding more aggressive with GetUnderlyingObject. This recursively strips all GEPs like the existing code. It also handles bitcasts and other operations that do not change the pointer value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191847 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/Transforms/SLPVectorizer/X86/simplebb.ll | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'test/Transforms') diff --git a/test/Transforms/SLPVectorizer/X86/simplebb.ll b/test/Transforms/SLPVectorizer/X86/simplebb.ll index cd0b99e..0b76bec 100644 --- a/test/Transforms/SLPVectorizer/X86/simplebb.ll +++ b/test/Transforms/SLPVectorizer/X86/simplebb.ll @@ -23,3 +23,24 @@ entry: ret void } +; Simple 3-pair chain with loads and stores, obfuscated with bitcasts +; CHECK: test2 +; CHECK: store <2 x double> +; CHECK: ret +define void @test2(double* %a, double* %b, i8* %e) { +entry: + %i0 = load double* %a, align 8 + %i1 = load double* %b, align 8 + %mul = fmul double %i0, %i1 + %arrayidx3 = getelementptr inbounds double* %a, i64 1 + %i3 = load double* %arrayidx3, align 8 + %arrayidx4 = getelementptr inbounds double* %b, i64 1 + %i4 = load double* %arrayidx4, align 8 + %mul5 = fmul double %i3, %i4 + %c = bitcast i8* %e to double* + store double %mul, double* %c, align 8 + %carrayidx5 = getelementptr inbounds i8* %e, i64 8 + %arrayidx5 = bitcast i8* %carrayidx5 to double* + store double %mul5, double* %arrayidx5, align 8 + ret void +} -- cgit v1.1