File: load.ll

package info (click to toggle)
llvm-toolchain-3.9 1%3A3.9.1-8
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 441,060 kB
  • ctags: 428,777
  • sloc: cpp: 2,546,577; ansic: 538,318; asm: 119,677; objc: 103,316; python: 102,148; sh: 27,847; pascal: 5,626; ml: 5,510; perl: 5,293; lisp: 4,801; makefile: 2,177; xml: 686; cs: 362; php: 212; csh: 117
file content (30 lines) | stat: -rw-r--r-- 934 bytes parent folder | download | duplicates (7)
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
30
; NOTE: Assertions have been autogenerated by update_test_checks.py
; RUN: opt < %s -instsimplify -S | FileCheck %s

@zeroinit = constant {} zeroinitializer
@undef = constant {} undef

define i32 @crash_on_zeroinit() {
; CHECK-LABEL: @crash_on_zeroinit(
; CHECK:         ret i32 0
;
  %load = load i32, i32* bitcast ({}* @zeroinit to i32*)
  ret i32 %load
}

define i32 @crash_on_undef() {
; CHECK-LABEL: @crash_on_undef(
; CHECK:         ret i32 undef
;
  %load = load i32, i32* bitcast ({}* @undef to i32*)
  ret i32 %load
}

@GV = private constant [8 x i32] [i32 42, i32 43, i32 44, i32 45, i32 46, i32 47, i32 48, i32 49]

define <8 x i32> @partial_load() {
; CHECK-LABEL: @partial_load(
; CHECK:         ret <8 x i32> <i32 0, i32 42, i32 43, i32 44, i32 45, i32 46, i32 47, i32 48>
  %load = load <8 x i32>, <8 x i32>* bitcast (i32* getelementptr ([8 x i32], [8 x i32]* @GV, i64 0, i64 -1) to <8 x i32>*)
  ret <8 x i32> %load
}