1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
| ; RUN: llc -mtriple=i686-unknown-unknown -mattr=+sse4.1 < %s | FileCheck %s -check-prefix=X32
; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=+sse4.1 < %s | FileCheck %s -check-prefix=X64
; Test for case where insertps was folding the load of the insertion element, but a later optimization
; was then manipulating the load.
define <4 x float> @insertps_unfold(<4 x float>* %v0, <4 x float>* %v1) {
; X32-LABEL: insertps_unfold:
; X32: # %bb.0:
; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
; X32-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X32-NEXT: movss {{.*#+}} xmm1 = mem[0],zero,zero,zero
; X32-NEXT: movaps (%eax), %xmm0
; X32-NEXT: insertps {{.*#+}} xmm0 = xmm0[0,1,2],mem[0]
; X32-NEXT: addps %xmm1, %xmm0
; X32-NEXT: retl
;
; X64-LABEL: insertps_unfold:
; X64: # %bb.0:
; X64-NEXT: movss {{.*#+}} xmm1 = mem[0],zero,zero,zero
; X64-NEXT: movaps (%rdi), %xmm0
; X64-NEXT: insertps {{.*#+}} xmm0 = xmm0[0,1,2],mem[0]
; X64-NEXT: addps %xmm1, %xmm0
; X64-NEXT: retq
%a = getelementptr inbounds <4 x float>, <4 x float>* %v1, i64 0, i64 1
%b = load float, float* %a, align 4
%c = insertelement <4 x float> undef, float %b, i32 0
%d = load <4 x float>, <4 x float>* %v1, align 16
%e = load <4 x float>, <4 x float>* %v0, align 16
%f = shufflevector <4 x float> %e, <4 x float> %d, <4 x i32> <i32 0, i32 1, i32 2, i32 5>
%g = fadd <4 x float> %c, %f
ret <4 x float> %g
}
|