llvm-6502/test/CodeGen/X86/pr18014.ll
Michael Liao 0894438912 Fix PR18014
- When simplifying the mask generation for BLEND, check whether that mask is
  also consumed by other non-BLEND insns. If true, skip that simplification.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195476 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-22 17:56:57 +00:00

17 lines
559 B
LLVM

; RUN: llc < %s -mtriple=x86_64-linux-pc -mcpu=penryn | FileCheck %s
; Ensure PSRAD is generated as the condition is consumed by both PADD and
; BLENDVPS. PAND requires all bits setting properly.
define <4 x i32> @foo(<4 x i32>* %p, <4 x i1> %cond, <4 x i32> %v1, <4 x i32> %v2, <4 x i32> %v3) {
%sext_cond = sext <4 x i1> %cond to <4 x i32>
%t1 = add <4 x i32> %v1, %sext_cond
%t2 = select <4 x i1> %cond, <4 x i32> %v1, <4 x i32> %v2
store <4 x i32> %t2, <4 x i32>* %p
ret <4 x i32> %t1
; CHECK: foo
; CHECK: pslld
; CHECK: psrad
; CHECK: ret
}