File: propagate-vcombine.ll

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2~deb10u1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 995,836 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (48 lines) | stat: -rw-r--r-- 2,057 bytes parent folder | download | duplicates (15)
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
; RUN: llc -march=hexagon < %s | FileCheck %s

@v0 = global <16 x i32> zeroinitializer, align 64
@v1 = global <16 x i32> zeroinitializer, align 64

; CHECK-LABEL: danny:
; CHECK-NOT: vcombine

define void @danny() #0 {
  %t0 = load <16 x i32>, <16 x i32>* @v0, align 64
  %t1 = load <16 x i32>, <16 x i32>* @v1, align 64
  %t2 = call <32 x i32> @llvm.hexagon.V6.vcombine(<16 x i32> %t0, <16 x i32> %t1)
  %t3 = tail call <16 x i32> @llvm.hexagon.V6.lo(<32 x i32> %t2)
  %t4 = tail call <16 x i32> @llvm.hexagon.V6.hi(<32 x i32> %t2)
  store <16 x i32> %t3, <16 x i32>* @v0, align 64
  store <16 x i32> %t4, <16 x i32>* @v1, align 64
  ret void
}

@w0 = global <32 x i32> zeroinitializer, align 128
@w1 = global <32 x i32> zeroinitializer, align 128

; CHECK-LABEL: sammy:
; CHECK-NOT: vcombine

define void @sammy() #1 {
  %t0 = load <32 x i32>, <32 x i32>* @w0, align 128
  %t1 = load <32 x i32>, <32 x i32>* @w1, align 128
  %t2 = call <64 x i32> @llvm.hexagon.V6.vcombine.128B(<32 x i32> %t0, <32 x i32> %t1)
  %t3 = tail call <32 x i32> @llvm.hexagon.V6.lo.128B(<64 x i32> %t2)
  %t4 = tail call <32 x i32> @llvm.hexagon.V6.hi.128B(<64 x i32> %t2)
  store <32 x i32> %t3, <32 x i32>* @w0, align 128
  store <32 x i32> %t4, <32 x i32>* @w1, align 128
  ret void
}

declare <32 x i32> @llvm.hexagon.V6.vcombine(<16 x i32>, <16 x i32>) #2
declare <16 x i32> @llvm.hexagon.V6.lo(<32 x i32>) #2
declare <16 x i32> @llvm.hexagon.V6.hi(<32 x i32>) #2

declare <64 x i32> @llvm.hexagon.V6.vcombine.128B(<32 x i32>, <32 x i32>) #3
declare <32 x i32> @llvm.hexagon.V6.lo.128B(<64 x i32>) #3
declare <32 x i32> @llvm.hexagon.V6.hi.128B(<64 x i32>) #3

attributes #0 = { nounwind "target-cpu"="hexagonv60" "target-features"="+hvxv60,+hvx-length64b" }
attributes #1 = { nounwind "target-cpu"="hexagonv60" "target-features"="+hvxv60,+hvx-length128b" }
attributes #2 = { nounwind readnone "target-cpu"="hexagonv60" "target-features"="+hvxv60,+hvx-length64b" }
attributes #3 = { nounwind readnone "target-cpu"="hexagonv60" "target-features"="+hvxv60,+hvx-length128b" }