From 93b7415f4cc9a83126f1d89b2d2f51a204b09dd6 Mon Sep 17 00:00:00 2001 From: Mon P Wang Date: Tue, 17 Mar 2009 06:33:10 +0000 Subject: Fix a problem with DAGCombine where we were building an illegal build vector shuffle mask. Forced the mask to be built using i32. Note: this will be irrelevant once vector_shuffle no longer takes a build vector for the shuffle mask. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67076 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/CodeGen/X86/dagcombine-buildvector.ll | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 test/CodeGen/X86/dagcombine-buildvector.ll (limited to 'test/CodeGen/X86/dagcombine-buildvector.ll') diff --git a/test/CodeGen/X86/dagcombine-buildvector.ll b/test/CodeGen/X86/dagcombine-buildvector.ll new file mode 100644 index 0000000..2ca4177 --- /dev/null +++ b/test/CodeGen/X86/dagcombine-buildvector.ll @@ -0,0 +1,13 @@ +; RUN: llvm-as < %s | llc -march=x86 -o %t -f +; RUN: grep unpcklpd %t | count 1 +; RUN: grep movapd %t | count 1 + +; Shows a dag combine bug that will generate an illegal build vector +; with v2i64 build_vector i32, i32. + +define void @test(<2 x double>* %dst, <4 x double> %src) { +entry: + %tmp7.i = shufflevector <4 x double> %src, <4 x double> undef, <2 x i32> < i32 0, i32 2 > + store <2 x double> %tmp7.i, <2 x double>* %dst + ret void +} \ No newline at end of file -- cgit v1.1