File: vec_zero.ll

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (65 lines) | stat: -rw-r--r-- 1,838 bytes parent folder | download | duplicates (13)
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
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-- -mattr=+sse2 | FileCheck %s --check-prefix=X86
; RUN: llc < %s -mtriple=x86_64-- -mattr=+sse2 | FileCheck %s --check-prefix=X64

define void @foo(ptr %P) {
; X86-LABEL: foo:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    xorps %xmm0, %xmm0
; X86-NEXT:    addps (%eax), %xmm0
; X86-NEXT:    movaps %xmm0, (%eax)
; X86-NEXT:    retl
;
; X64-LABEL: foo:
; X64:       # %bb.0:
; X64-NEXT:    xorps %xmm0, %xmm0
; X64-NEXT:    addps (%rdi), %xmm0
; X64-NEXT:    movaps %xmm0, (%rdi)
; X64-NEXT:    retq
  %T = load <4 x float>, ptr %P
  %S = fadd <4 x float> zeroinitializer, %T
  store <4 x float> %S, ptr %P
  ret void
}

define void @bar(ptr %P) {
; X86-LABEL: bar:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    pxor %xmm0, %xmm0
; X86-NEXT:    psubd (%eax), %xmm0
; X86-NEXT:    movdqa %xmm0, (%eax)
; X86-NEXT:    retl
;
; X64-LABEL: bar:
; X64:       # %bb.0:
; X64-NEXT:    pxor %xmm0, %xmm0
; X64-NEXT:    psubd (%rdi), %xmm0
; X64-NEXT:    movdqa %xmm0, (%rdi)
; X64-NEXT:    retq
  %T = load <4 x i32>, ptr %P
  %S = sub <4 x i32> zeroinitializer, %T
  store <4 x i32> %S, ptr %P
  ret void
}

; Without any type hints from operations, we fall back to the smaller xorps.
; The IR type <4 x i32> is ignored.
define void @untyped_zero(ptr %p) {
; X86-LABEL: untyped_zero:
; X86:       # %bb.0: # %entry
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    xorps %xmm0, %xmm0
; X86-NEXT:    movaps %xmm0, (%eax)
; X86-NEXT:    retl
;
; X64-LABEL: untyped_zero:
; X64:       # %bb.0: # %entry
; X64-NEXT:    xorps %xmm0, %xmm0
; X64-NEXT:    movaps %xmm0, (%rdi)
; X64-NEXT:    retq
entry:
  store <4 x i32> zeroinitializer, ptr %p, align 16
  ret void
}