File: weak-symbols.ll

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-22
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,799,624 kB
  • sloc: cpp: 6,428,607; ansic: 1,383,196; asm: 793,408; python: 223,504; objc: 75,364; f90: 60,502; lisp: 33,869; pascal: 15,282; sh: 9,684; perl: 7,453; ml: 4,937; awk: 3,523; makefile: 2,889; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (29 lines) | stat: -rw-r--r-- 728 bytes parent folder | download | duplicates (12) 
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
27
28
29
 
; PR4738 - Test that the library call simplifier doesn't assume anything about
; weak symbols.
;
; RUN: opt < %s -passes=instcombine -S | FileCheck %s

@real_init = weak_odr constant [2 x i8] c"y\00"
@fake_init = weak constant [2 x i8] c"y\00"
@.str = private constant [2 x i8] c"y\00"

define i32 @foo() nounwind {
; CHECK-LABEL: define i32 @foo(
; CHECK: call i32 @strcmp
; CHECK: ret i32 %temp1

entry:
  %temp1 = call i32 @strcmp(ptr @fake_init, ptr @.str) nounwind readonly
  ret i32 %temp1
}

define i32 @bar() nounwind {
; CHECK-LABEL: define i32 @bar(
; CHECK: ret i32 0

entry:
  %temp1 = call i32 @strcmp(ptr @real_init, ptr @.str) nounwind readonly
  ret i32 %temp1
}

declare i32 @strcmp(ptr, ptr) nounwind readonly