llvm/test/CodeGen/X86/sse2-mul.ll

; RUN: llc < %s -march=x86-64 -mcpu=core2 | FileCheck %s

define <4 x i32> @test1(<4 x i32> %x, <4 x i32> %y) {
  %m = mul <4 x i32> %x, %y
  ret <4 x i32> %m
; CHECK-LABEL: test1:
; CHECK: pshufd $49
; CHECK: pmuludq
; CHECK: pshufd $49
; CHECK: pmuludq
; CHECK: shufps $-120
; CHECK: pshufd $-40
; CHECK: ret
}
X86: Turn mul of <4 x i32> into pmuludq when no SSE4.1 is available. pmuludq is slow, but it turns out that all the unpacking and packing of the scalarized mul is even slower. 10% speedup on loop-vectorized paq8p. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170985 91177308-0d34-0410-b5e6-96231b3b80d8 2012-12-22 16:07:56 +00:00			`; RUN: llc < %s -march=x86-64 -mcpu=core2 \| FileCheck %s`

			`define <4 x i32> @test1(<4 x i32> %x, <4 x i32> %y) {`
			`%m = mul <4 x i32> %x, %y`
			`ret <4 x i32> %m`
Convert CodeGen//.ll tests to use the new CHECK-LABEL for easier debugging. No functionality change and all tests pass after conversion. This was done with the following sed invocation to catch label lines demarking function boundaries: sed -i '' "s/^;\( \)\([A-Z0-9_]\):\( \)test\([A-Za-z0-9_-]\):\( \)$/;\1\2-LABEL:\3test\4:\5/g" test/CodeGen//*.ll which was written conservatively to avoid false positives rather than false negatives. I scanned through all the changes and everything looks correct. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186258 91177308-0d34-0410-b5e6-96231b3b80d8 2013-07-13 20:38:47 +00:00			`; CHECK-LABEL: test1:`
X86: Turn mul of <4 x i32> into pmuludq when no SSE4.1 is available. pmuludq is slow, but it turns out that all the unpacking and packing of the scalarized mul is even slower. 10% speedup on loop-vectorized paq8p. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170985 91177308-0d34-0410-b5e6-96231b3b80d8 2012-12-22 16:07:56 +00:00			`; CHECK: pshufd $49`
			`; CHECK: pmuludq`
			`; CHECK: pshufd $49`
			`; CHECK: pmuludq`
			`; CHECK: shufps $-120`
			`; CHECK: pshufd $-40`
			`; CHECK: ret`
			`}`