File: index-const-prop-linkage.ll

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-12
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,496,180 kB
  • sloc: cpp: 5,593,972; ansic: 986,872; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,538; xml: 953; cs: 573; fortran: 567
file content (27 lines) | stat: -rw-r--r-- 1,062 bytes parent folder | download | duplicates (6) 
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
 
; RUN: opt -module-summary %s -o %t1.bc
; RUN: opt -module-summary %p/Inputs/index-const-prop-linkage.ll -o %t2.bc
; RUN: llvm-lto2 run -save-temps %t2.bc -r=%t2.bc,foo,pl -r=%t2.bc,g1,pl -r=%t2.bc,g2,pl -r=%t2.bc,g3, \
; RUN:                           %t1.bc -r=%t1.bc,foo, -r=%t1.bc,main,plx -r=%t1.bc,g2,  -o %t3
; RUN: llvm-dis %t3.2.3.import.bc -o - | FileCheck %s

; Check that we never internalize anything with:
; - appending linkage
; - common linkage
; - available_externally linkage
; - reference from @llvm.used
; CHECK:      @llvm.used = appending global [1 x i32*] [i32* @g2]
; CHECK-NEXT: @g1 = external global i32, align 4
; CHECK-NEXT: @g2 = available_externally global i32 42, align 4
; CHECK-NEXT: @g3 = available_externally global i32 42, align 4

target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

declare i32 @foo()
@g2 = external global i32
@llvm.used = appending global [1 x i32*] [i32* @g2]

define i32 @main() {
  %v = call i32 @foo()
  ret i32 %v
}