File: fold-vector-bv-crash.ll

package info (click to toggle)
llvm-toolchain-6.0 1%3A6.0.1-10
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 598,080 kB
  • sloc: cpp: 3,046,253; ansic: 595,057; asm: 271,965; python: 128,926; objc: 106,554; sh: 21,906; lisp: 10,191; pascal: 6,094; ml: 5,544; perl: 5,265; makefile: 2,227; cs: 2,027; xml: 686; php: 212; csh: 117
file content (17 lines) | stat: -rw-r--r-- 475 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 -mtriple=i686-unknown -mattr=+avx
; RUN: llc < %s -mtriple=x86_64-unknown -mattr=+avx

;
; llvm-stress generated crash case due to build_vector implicit
; truncation bug from constant folding after legalization.
;

@G = external global i32

define void @bv_crash_test() {
  %I = insertelement <4 x i64> zeroinitializer, i64 15910, i32 0
  %Tr = trunc <4 x i64> %I to <4 x i8>
  %Bc = bitcast <4 x i8> %Tr to i32
  store volatile i32 %Bc, i32* @G
  ret void
}