mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 11:13:28 +01:00
7ca099f727
- Check index being extracted to be constant 0 before simplfiying. Otherwise, retain the original sequence. llvm-svn: 166504
39 lines
1.2 KiB
LLVM
39 lines
1.2 KiB
LLVM
; RUN: llc < %s -mtriple=x86_64-linux-pc -mcpu=corei7 | FileCheck %s
|
|
|
|
declare <4 x i32> @llvm.x86.sse41.pminud(<4 x i32>, <4 x i32>)
|
|
|
|
define <2 x i16> @good(<4 x i32>*, <4 x i8>*) {
|
|
entry:
|
|
%2 = load <4 x i32>* %0, align 16
|
|
%3 = call <4 x i32> @llvm.x86.sse41.pminud(<4 x i32> %2, <4 x i32> <i32 127, i32 127, i32 127, i32 127>)
|
|
%4 = extractelement <4 x i32> %3, i32 0
|
|
%5 = extractelement <4 x i32> %3, i32 1
|
|
%6 = extractelement <4 x i32> %3, i32 2
|
|
%7 = extractelement <4 x i32> %3, i32 3
|
|
%8 = bitcast i32 %4 to <2 x i16>
|
|
%9 = bitcast i32 %5 to <2 x i16>
|
|
ret <2 x i16> %8
|
|
; CHECK: good
|
|
; CHECK: pminud
|
|
; CHECK-NEXT: pmovzxwq
|
|
; CHECK: ret
|
|
}
|
|
|
|
define <2 x i16> @bad(<4 x i32>*, <4 x i8>*) {
|
|
entry:
|
|
%2 = load <4 x i32>* %0, align 16
|
|
%3 = call <4 x i32> @llvm.x86.sse41.pminud(<4 x i32> %2, <4 x i32> <i32 127, i32 127, i32 127, i32 127>)
|
|
%4 = extractelement <4 x i32> %3, i32 0
|
|
%5 = extractelement <4 x i32> %3, i32 1
|
|
%6 = extractelement <4 x i32> %3, i32 2
|
|
%7 = extractelement <4 x i32> %3, i32 3
|
|
%8 = bitcast i32 %4 to <2 x i16>
|
|
%9 = bitcast i32 %5 to <2 x i16>
|
|
ret <2 x i16> %9
|
|
; CHECK: bad
|
|
; CHECK: pminud
|
|
; CHECK: pextrd
|
|
; CHECK: pmovzxwq
|
|
; CHECK: ret
|
|
}
|