File: 2008-04-29-VolatileLoadMerge.ll

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (21 lines) | stat: -rw-r--r-- 725 bytes parent folder | download | duplicates (14) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
; RUN: opt < %s -passes=instcombine -S | grep "load volatile" | count 2
; PR2262
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
target triple = "i386-apple-darwin8"
@g_1 = internal global i32 0		; <ptr> [#uses=3]

define i32 @main(i32 %i) nounwind  {
entry:
	%tmp93 = icmp slt i32 %i, 10		; <i1> [#uses=0]
	%tmp34 = load volatile i32, ptr @g_1, align 4		; <i32> [#uses=1]
	br i1 %tmp93, label %bb11, label %bb

bb:		; preds = %bb, %entry
	%tmp3 = load volatile i32, ptr @g_1, align 4		; <i32> [#uses=1]
	br label %bb11

bb11:		; preds = %bb
	%tmp4 = phi i32 [ %tmp34, %entry ], [ %tmp3, %bb ]		; <i32> [#uses=1]
	ret i32 %tmp4
}