File: widen_load-0.ll

package info (click to toggle)
llvm 2.6-9.1
  • links: PTS
  • area: main
  • in suites: squeeze
  • size: 57,604 kB
  • ctags: 44,336
  • sloc: cpp: 344,766; sh: 12,407; ansic: 10,617; ada: 3,070; ml: 2,505; perl: 2,496; makefile: 1,426; pascal: 1,163; exp: 389; asm: 307; python: 298; objc: 260; lisp: 182; csh: 117; xml: 38; f90: 36; tcl: 20
file content (21 lines) | stat: -rw-r--r-- 778 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
; RUN: llvm-as < %s | llc -o - -march=x86-64 | FileCheck %s
; PR4891

; Both loads should happen before either store.

; CHECK: movl  (%rdi), %eax
; CHECK: movl  (%rsi), %ecx
; CHECK: movl  %ecx, (%rdi)
; CHECK: movl  %eax, (%rsi)

define void @short2_int_swap(<2 x i16>* nocapture %b, i32* nocapture %c) nounwind {
entry:
  %0 = load <2 x i16>* %b, align 2                ; <<2 x i16>> [#uses=1]
  %1 = load i32* %c, align 4                      ; <i32> [#uses=1]
  %tmp1 = bitcast i32 %1 to <2 x i16>             ; <<2 x i16>> [#uses=1]
  store <2 x i16> %tmp1, <2 x i16>* %b, align 2
  %tmp5 = bitcast <2 x i16> %0 to <1 x i32>       ; <<1 x i32>> [#uses=1]
  %tmp3 = extractelement <1 x i32> %tmp5, i32 0   ; <i32> [#uses=1]
  store i32 %tmp3, i32* %c, align 4
  ret void
}