llvm-6502/test/CodeGen/X86/2012-03-15-build_vector_wl.ll


; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7-avx -mattr=+avx | FileCheck %s
; CHECK: build_vector_again
define <4 x i8> @build_vector_again(<16 x i8> %in) nounwind readnone {
entry:
  %out = shufflevector <16 x i8> %in, <16 x i8> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
; CHECK: pmovzxbd
  ret <4 x i8> %out
; CHECK: ret
}
When optimizing certain BUILD_VECTOR nodes into other BUILD_VECTOR nodes, add the new node into the work list because there is a potential for further optimizations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152784 91177308-0d34-0410-b5e6-96231b3b80d8 2012-03-15 08:49:06 +00:00
			`; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7-avx -mattr=+avx \| FileCheck %s`
			`; CHECK: build_vector_again`
			`define <4 x i8> @build_vector_again(<16 x i8> %in) nounwind readnone {`
			`entry:`
			`%out = shufflevector <16 x i8> %in, <16 x i8> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 3>`
Enable lowering ZERO_EXTEND/ANY_EXTEND to PMOVZX from SSE4.1 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166486 91177308-0d34-0410-b5e6-96231b3b80d8 2012-10-23 17:34:00 +00:00			`; CHECK: pmovzxbd`
When optimizing certain BUILD_VECTOR nodes into other BUILD_VECTOR nodes, add the new node into the work list because there is a potential for further optimizations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152784 91177308-0d34-0410-b5e6-96231b3b80d8 2012-03-15 08:49:06 +00:00			`ret <4 x i8> %out`
			`; CHECK: ret`
			`}`