File: win32-spill-xmm.ll

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-22
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,799,624 kB
  • sloc: cpp: 6,428,607; ansic: 1,383,196; asm: 793,408; python: 223,504; objc: 75,364; f90: 60,502; lisp: 33,869; pascal: 15,282; sh: 9,684; perl: 7,453; ml: 4,937; awk: 3,523; makefile: 2,889; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (38 lines) | stat: -rw-r--r-- 1,056 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
 
; RUN: llc -mcpu=generic -mtriple=i686-pc-windows-msvc -mattr=+sse < %s | FileCheck %s

; Check proper alignment of spilled vector

; CHECK-LABEL: spill_ok
; CHECK: subl    $32, %esp
; CHECK: movups  %xmm3, (%esp)
; CHECK: movl    $0, 16(%esp)
; CHECK: calll   _bar
define void @spill_ok(i32, ptr) {
entry:
  %2 = alloca i32, i32 %0
  %3 = load <16 x float>, ptr %1, align 64
  tail call void @bar(<16 x float> %3, i32 0) nounwind
  ret void
}

declare void @bar(<16 x float> %a, i32 %b)

; Check that proper alignment of spilled vector does not affect vargs

; CHECK-LABEL: vargs_not_affected
; CHECK: movl 28(%esp), %eax
define i32 @vargs_not_affected(<4 x float> %v, ptr %f, ...) {
entry:
  %ap = alloca ptr, align 4
  call void @llvm.va_start(ptr %ap)
  %argp.cur = load ptr, ptr %ap, align 4
  %argp.next = getelementptr inbounds i8, ptr %argp.cur, i32 4
  store ptr %argp.next, ptr %ap, align 4
  %0 = load i32, ptr %argp.cur, align 4
  call void @llvm.va_end(ptr %ap)
  ret i32 %0
}

declare void @llvm.va_start(ptr)

declare void @llvm.va_end(ptr)