File: shufflevec-bitcast.ll

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16.1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,388 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (16 lines) | stat: -rw-r--r-- 636 bytes parent folder | download | duplicates (6)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
; RUN: opt < %s -instcombine -S | FileCheck %s

define void @test(<16 x i8> %w, i32* %o1, float* %o2) {

; CHECK:       %v.bc = bitcast <16 x i8> %w to <4 x i32>
; CHECK-NEXT:  %v.extract = extractelement <4 x i32> %v.bc, i32 3
; CHECK-NEXT:  %v.bc{{[0-9]*}} = bitcast <16 x i8> %w to <4 x float>
; CHECK-NEXT:  %v.extract{{[0-9]*}} = extractelement <4 x float> %v.bc{{[0-9]*}}, i32 3

  %v = shufflevector <16 x i8> %w, <16 x i8> undef, <4 x i32> <i32 12, i32 13, i32 14, i32 15>
  %f = bitcast <4 x i8> %v to float
  %i = bitcast <4 x i8> %v to i32
  store i32 %i, i32* %o1, align 4
  store float %f, float* %o2, align 4
  ret void
}