File: combine-sse2-intrinsics.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 (53 lines) | stat: -rw-r--r-- 1,992 bytes parent folder | download | duplicates (3)
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
; RUN: llc < %s -march=x86 -mcpu=core2 | FileCheck %s
; RUN: llc < %s -march=x86-64 -mcpu=corei7 | FileCheck %s

; Verify that the backend correctly combines SSE2 builtin intrinsics.


define <4 x i32> @test_psra_1(<4 x i32> %A) {
  %1 = tail call <4 x i32> @llvm.x86.sse2.psrai.d(<4 x i32> %A, i32 3)
  %2 = tail call <4 x i32> @llvm.x86.sse2.psra.d(<4 x i32> %1, <4 x i32> <i32 3, i32 0, i32 7, i32 0>)
  %3 = tail call <4 x i32> @llvm.x86.sse2.psrai.d(<4 x i32> %2, i32 2)
  ret <4 x i32> %3
}
; CHECK-LABEL: test_psra_1
; CHECK: psrad $8, %xmm0
; CHECK-NEXT: ret

define <8 x i16> @test_psra_2(<8 x i16> %A) {
  %1 = tail call <8 x i16> @llvm.x86.sse2.psrai.w(<8 x i16> %A, i32 3)
  %2 = tail call <8 x i16> @llvm.x86.sse2.psra.w(<8 x i16> %1, <8 x i16> <i16 3, i16 0, i16 0, i16 0, i16 7, i16 0, i16 0, i16 0>)
  %3 = tail call <8 x i16> @llvm.x86.sse2.psrai.w(<8 x i16> %2, i32 2)
  ret <8 x i16> %3
}
; CHECK-LABEL: test_psra_2
; CHECK: psraw $8, %xmm0
; CHECK-NEXT: ret

define <4 x i32> @test_psra_3(<4 x i32> %A) {
  %1 = tail call <4 x i32> @llvm.x86.sse2.psrai.d(<4 x i32> %A, i32 0)
  %2 = tail call <4 x i32> @llvm.x86.sse2.psra.d(<4 x i32> %1, <4 x i32> <i32 0, i32 0, i32 7, i32 0>)
  %3 = tail call <4 x i32> @llvm.x86.sse2.psrai.d(<4 x i32> %2, i32 0)
  ret <4 x i32> %3
}
; CHECK-LABEL: test_psra_3
; CHECK-NOT: psrad
; CHECK: ret


define <8 x i16> @test_psra_4(<8 x i16> %A) {
  %1 = tail call <8 x i16> @llvm.x86.sse2.psrai.w(<8 x i16> %A, i32 0)
  %2 = tail call <8 x i16> @llvm.x86.sse2.psra.w(<8 x i16> %1, <8 x i16> <i16 0, i16 0, i16 0, i16 0, i16 7, i16 0, i16 0, i16 0>)
  %3 = tail call <8 x i16> @llvm.x86.sse2.psrai.w(<8 x i16> %2, i32 0)
  ret <8 x i16> %3
}
; CHECK-LABEL: test_psra_4
; CHECK-NOT: psraw
; CHECK: ret


declare <8 x i16> @llvm.x86.sse2.psra.w(<8 x i16>, <8 x i16>)
declare <8 x i16> @llvm.x86.sse2.psrai.w(<8 x i16>, i32)
declare <4 x i32> @llvm.x86.sse2.psra.d(<4 x i32>, <4 x i32>)
declare <4 x i32> @llvm.x86.sse2.psrai.d(<4 x i32>, i32)