File: pseudo-probe-memset.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 (25 lines) | stat: -rw-r--r-- 898 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
22
23
24
25
 
; RUN: opt < %s -passes=memcpyopt -S | FileCheck %s

%struct.MV = type { i16, i16 }

define void @test(ptr nocapture %c) nounwind optsize {
; All the stores in this example should be merged into a single memset.
; CHECK-NOT:  store i32 -1
; CHECK: call void @llvm.memset.p0.i64
  store i32 -1, ptr %c, align 4
  %1 = getelementptr inbounds i32, ptr %c, i32 1
  store i32 -1, ptr %1, align 4
  %2 = getelementptr inbounds i32, ptr %c, i32 2
  store i32 -1, ptr %2, align 4
  call void @llvm.pseudoprobe(i64 5116412291814990879, i64 1, i32 0, i64 -1)
  %3 = getelementptr inbounds i32, ptr %c, i32 3
  store i32 -1, ptr %3, align 4
  %4 = getelementptr inbounds i32, ptr %c, i32 4
  store i32 -1, ptr %4, align 4
  ret void
}

; Function Attrs: inaccessiblememonly nounwind willreturn
declare void @llvm.pseudoprobe(i64, i64, i32, i64) #0

attributes #0 = { inaccessiblememonly nounwind willreturn }