File: avx-vzeroupper.ll

package info (click to toggle)
llvm-3.0 3.0-10
  • links: PTS, VCS
  • area: main
  • in suites: wheezy
  • size: 75,412 kB
  • sloc: cpp: 468,043; asm: 109,345; ansic: 13,782; sh: 12,935; ml: 4,716; python: 4,351; perl: 2,096; makefile: 1,905; pascal: 1,578; exp: 389; xml: 283; lisp: 187; csh: 117
file content (26 lines) | stat: -rw-r--r-- 882 bytes parent folder | download | duplicates (2)
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
; RUN: llc < %s -x86-use-vzeroupper -mtriple=x86_64-apple-darwin -mcpu=corei7-avx -mattr=+avx | FileCheck %s

define <4 x float> @do_sse_local(<4 x float> %a) nounwind uwtable readnone ssp {
entry:
  %add.i = fadd <4 x float> %a, %a
  ret <4 x float> %add.i
}

; CHECK: _test00
define <4 x float> @test00(<4 x float> %a, <4 x float> %b) nounwind uwtable ssp {
entry:
  %add.i = fadd <4 x float> %a, %b
  ; CHECK: vzeroupper
  ; CHECK-NEXT: callq _do_sse
  %call3 = tail call <4 x float> @do_sse(<4 x float> %add.i) nounwind
  %sub.i = fsub <4 x float> %call3, %add.i
  ; CHECK-NOT: vzeroupper
  ; CHECK: callq _do_sse_local
  %call8 = tail call <4 x float> @do_sse_local(<4 x float> %sub.i)
  ; CHECK: vzeroupper
  ; CHECK-NEXT: jmp _do_sse
  %call10 = tail call <4 x float> @do_sse(<4 x float> %call8) nounwind
  ret <4 x float> %call10
}

declare <4 x float> @do_sse(<4 x float>)