File: dagcombine-buildvector.ll

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-12
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,496,180 kB
  • sloc: cpp: 5,593,972; ansic: 986,872; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,538; xml: 953; cs: 573; fortran: 567
file content (36 lines) | stat: -rw-r--r-- 1,487 bytes parent folder | download | duplicates (14)
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
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-unknown -mcpu=penryn | FileCheck %s

; Shows a dag combine bug that will generate an illegal build vector
; with v2i64 build_vector i32, i32.

define void @test(<2 x double>* %dst, <4 x double> %src) nounwind {
; CHECK-LABEL: test:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    movl {{[0-9]+}}(%esp), %eax
; CHECK-NEXT:    movlhps {{.*#+}} xmm0 = xmm0[0],xmm1[0]
; CHECK-NEXT:    movaps %xmm0, (%eax)
; CHECK-NEXT:    retl
entry:
        %tmp7.i = shufflevector <4 x double> %src, <4 x double> undef, <2 x i32> <i32 0, i32 2>
        store <2 x double> %tmp7.i, <2 x double>* %dst
        ret void
}

define void @test2(<4 x i16>* %src, <4 x i32>* %dest) nounwind {
; CHECK-LABEL: test2:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    movl {{[0-9]+}}(%esp), %eax
; CHECK-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; CHECK-NEXT:    pmovzxwd {{.*#+}} xmm0 = mem[0],zero,mem[1],zero,mem[2],zero,mem[3],zero
; CHECK-NEXT:    movdqa %xmm0, (%eax)
; CHECK-NEXT:    retl
entry:
        %tmp1 = load <4 x i16>, <4 x i16>* %src
        %tmp3 = shufflevector <4 x i16> %tmp1, <4 x i16> undef, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef>
        %0 = tail call <4 x i32> @llvm.x86.sse41.pmovzxwd(<8 x i16> %tmp3)
        store <4 x i32> %0, <4 x i32>* %dest
        ret void
}

declare <4 x i32> @llvm.x86.sse41.pmovzxwd(<8 x i16>) nounwind readnone