File: global-bug.ll

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-6~deb11u1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,418,812 kB
  • sloc: cpp: 5,290,827; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,900; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,892; xml: 953; cs: 573; fortran: 539
file content (23 lines) | stat: -rw-r--r-- 910 bytes parent folder | download | duplicates (3) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
 
; RUN: opt < %s -scalarizer -S -o - | FileCheck %s
; RUN: opt < %s -passes='function(scalarizer)' -S | FileCheck %s

@a = dso_local global i16 0, align 1
@b = dso_local local_unnamed_addr global i16 0, align 1

; The scalarizer used to take the name of the extractelement instruction
; ("extract") and put that on the extracted value, which in this test case is
; the global variable @a. That was wrong, as we must not change the name of
; the global variable. So make sure we find "@a" in the ptrtoint.
define dso_local void @test1() local_unnamed_addr {
; CHECK-LABEL: @test1(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[T0:%.*]] = ptrtoint i16* @a to i16
; CHECK-NEXT:    store i16 [[T0]], i16* @b, align 1
; CHECK-NEXT:    ret void
;
entry:
  %extract = extractelement <4 x i16*> <i16* @a, i16* @a, i16* @a, i16* @a>, i32 1
  %t0 = ptrtoint i16* %extract to i16
  store i16 %t0, i16* @b, align 1
  ret void
}