File: invalid-memcpy.ll

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2~deb10u1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 995,836 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (17 lines) | stat: -rw-r--r-- 602 bytes parent folder | download | duplicates (14) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
 
; RUN: llc < %s 

; This testcase is invalid (the alignment specified for memcpy is 
; greater than the alignment guaranteed for Qux or C.0.1173), but it
; should compile, not crash the code generator.

@C.0.1173 = external constant [33 x i8]

define void @Bork() {
entry:
  %Qux = alloca [33 x i8]
  %Qux1 = bitcast [33 x i8]* %Qux to i8*
  call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %Qux1, i8* align 8 getelementptr inbounds ([33 x i8], [33 x i8]* @C.0.1173, i32 0, i32 0), i64 33, i1 false)
  ret void
}

declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i1) nounwind