File: sse_partial_update.ll

package info (click to toggle)
llvm-toolchain-3.7 1%3A3.7.1-5
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 345,556 kB
  • ctags: 362,199
  • sloc: cpp: 2,156,381; ansic: 458,339; objc: 91,547; python: 89,988; asm: 86,305; sh: 21,479; makefile: 6,853; perl: 5,601; ml: 5,458; pascal: 3,933; lisp: 2,429; xml: 686; cs: 239; php: 202; csh: 117
file content (92 lines) | stat: -rw-r--r-- 3,140 bytes parent folder | download
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
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
; RUN: llc < %s -mtriple=x86_64-apple-macosx -mattr=+sse2 -mcpu=nehalem | FileCheck %s

; rdar: 12558838
; PR14221
; There is a mismatch between the intrinsic and the actual instruction.
; The actual instruction has a partial update of dest, while the intrinsic
; passes through the upper FP values. Here, we make sure the source and
; destination of each scalar unary op are the same.

define void @rsqrtss(<4 x float> %a) nounwind uwtable ssp {
entry:
; CHECK-LABEL: rsqrtss:
; CHECK: rsqrtss %xmm0, %xmm0
; CHECK-NEXT: cvtss2sd %xmm0
; CHECK-NEXT: movshdup
; CHECK-NEXT: cvtss2sd %xmm0
; CHECK-NEXT: movap
; CHECK-NEXT: jmp

  %0 = tail call <4 x float> @llvm.x86.sse.rsqrt.ss(<4 x float> %a) nounwind
  %a.addr.0.extract = extractelement <4 x float> %0, i32 0
  %conv = fpext float %a.addr.0.extract to double
  %a.addr.4.extract = extractelement <4 x float> %0, i32 1
  %conv3 = fpext float %a.addr.4.extract to double
  tail call void @callee(double %conv, double %conv3) nounwind
  ret void
}
declare void @callee(double, double)
declare <4 x float> @llvm.x86.sse.rsqrt.ss(<4 x float>) nounwind readnone

define void @rcpss(<4 x float> %a) nounwind uwtable ssp {
entry:
; CHECK-LABEL: rcpss:
; CHECK: rcpss %xmm0, %xmm0
; CHECK-NEXT: cvtss2sd %xmm0
; CHECK-NEXT: movshdup
; CHECK-NEXT: cvtss2sd %xmm0
; CHECK-NEXT: movap
; CHECK-NEXT: jmp

  %0 = tail call <4 x float> @llvm.x86.sse.rcp.ss(<4 x float> %a) nounwind
  %a.addr.0.extract = extractelement <4 x float> %0, i32 0
  %conv = fpext float %a.addr.0.extract to double
  %a.addr.4.extract = extractelement <4 x float> %0, i32 1
  %conv3 = fpext float %a.addr.4.extract to double
  tail call void @callee(double %conv, double %conv3) nounwind
  ret void
}
declare <4 x float> @llvm.x86.sse.rcp.ss(<4 x float>) nounwind readnone

define void @sqrtss(<4 x float> %a) nounwind uwtable ssp {
entry:
; CHECK-LABEL: sqrtss:
; CHECK: sqrtss %xmm0, %xmm0
; CHECK-NEXT: cvtss2sd %xmm0
; CHECK-NEXT: movshdup
; CHECK-NEXT: cvtss2sd %xmm0
; CHECK-NEXT: movap
; CHECK-NEXT: jmp

  %0 = tail call <4 x float> @llvm.x86.sse.sqrt.ss(<4 x float> %a) nounwind
  %a.addr.0.extract = extractelement <4 x float> %0, i32 0
  %conv = fpext float %a.addr.0.extract to double
  %a.addr.4.extract = extractelement <4 x float> %0, i32 1
  %conv3 = fpext float %a.addr.4.extract to double
  tail call void @callee(double %conv, double %conv3) nounwind
  ret void
}
declare <4 x float> @llvm.x86.sse.sqrt.ss(<4 x float>) nounwind readnone

define void @sqrtsd(<2 x double> %a) nounwind uwtable ssp {
entry:
; CHECK-LABEL: sqrtsd:
; CHECK: sqrtsd %xmm0, %xmm0
; CHECK-NEXT: cvtsd2ss %xmm0
; CHECK-NEXT: shufpd
; CHECK-NEXT: cvtsd2ss %xmm0
; CHECK-NEXT: movap
; CHECK-NEXT: jmp

 %0 = tail call <2 x double> @llvm.x86.sse2.sqrt.sd(<2 x double> %a) nounwind
 %a0 = extractelement <2 x double> %0, i32 0
 %conv = fptrunc double %a0 to float
 %a1 = extractelement <2 x double> %0, i32 1
 %conv3 = fptrunc double %a1 to float
 tail call void @callee2(float %conv, float %conv3) nounwind
 ret void
}

declare void @callee2(float, float)
declare <2 x double> @llvm.x86.sse2.sqrt.sd(<2 x double>) nounwind readnone