File: globalsaa-memoryssa.ll

package info (click to toggle)
llvm-toolchain-7 1%3A7.0.1-8
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 733,456 kB
  • sloc: cpp: 3,776,651; ansic: 633,271; asm: 350,301; python: 142,716; objc: 107,612; sh: 22,626; lisp: 11,056; perl: 7,999; pascal: 6,742; ml: 5,537; awk: 3,536; makefile: 2,557; cs: 2,027; xml: 841; ruby: 156
file content (25 lines) | stat: -rw-r--r-- 653 bytes parent folder | download | duplicates (8)
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
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -S -globals-aa -early-cse-memssa | FileCheck %s

define i16 @f1() readonly {
  ret i16 0
}

declare void @f2()

; Check that EarlyCSE correctly handles function calls that don't have
; a MemoryAccess.  In this case the calls to @f1 have no
; MemoryAccesses since globals-aa determines that @f1 doesn't
; read/write memory at all.

define void @f3() {
; CHECK-LABEL: @f3(
; CHECK-NEXT:    [[CALL1:%.*]] = call i16 @f1()
; CHECK-NEXT:    call void @f2()
; CHECK-NEXT:    ret void
;
  %call1 = call i16 @f1()
  call void @f2()
  %call2 = call i16 @f1()
  ret void
}