File: x86-64-xmm-spill-unaligned.ll

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.8-1~exp1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,388 kB
  • sloc: cpp: 7,438,767; ansic: 1,393,871; asm: 1,012,926; python: 241,728; f90: 86,635; objc: 75,411; lisp: 42,144; pascal: 17,286; sh: 10,027; ml: 5,082; perl: 4,730; awk: 3,523; makefile: 3,349; javascript: 2,251; xml: 892; fortran: 672
file content (17 lines) | stat: -rw-r--r-- 658 bytes parent folder | download | duplicates (26) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
 
; Make sure that when the stack may be misaligned on function entry, fixed frame
; elements (here: XMM spills) are accessed using instructions that tolerate
; unaligned access.
;
; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mcpu=x86-64 -mattr=+sse,+sse-unaligned-mem --frame-pointer=all < %s | FileCheck %s

define dso_local preserve_allcc void @func() #0 {
; CHECK-LABEL: func:
; CHECK: movups  %xmm0, -{{[0-9]+}}(%rbp)
  call void asm sideeffect "", "~{xmm0},~{dirflag},~{fpsr},~{flags}"() #1
; CHECK: movups  -{{[0-9]+}}(%rbp), %xmm0
  ret void
}

attributes #0 = { nounwind }
!llvm.module.flags = !{!0}
!0 = !{i32 2, !"override-stack-alignment", i32 8}