llvm/test/Transforms/Mem2Reg/2003-06-26-IterativePromote.ll
David Blaikie 7c9c6ed761 [opaque pointer type] Add textual IR support for explicit type parameter to load instruction
Essentially the same as the GEP change in r230786.

A similar migration script can be used to update test cases, though a few more
test case improvements/changes were required this time around: (r229269-r229278)

import fileinput
import sys
import re

pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)")

for line in sys.stdin:
  sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line))

Reviewers: rafael, dexonsmith, grosser

Differential Revision: http://reviews.llvm.org/D7649

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230794 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 21:17:42 +00:00

17 lines
496 B
LLVM

; Promoting some values allows promotion of other values.
; RUN: opt < %s -mem2reg -S | not grep alloca
define i32 @test2() {
%result = alloca i32 ; <i32*> [#uses=2]
%a = alloca i32 ; <i32*> [#uses=2]
%p = alloca i32* ; <i32**> [#uses=2]
store i32 0, i32* %a
store i32* %a, i32** %p
%tmp.0 = load i32*, i32** %p ; <i32*> [#uses=1]
%tmp.1 = load i32, i32* %tmp.0 ; <i32> [#uses=1]
store i32 %tmp.1, i32* %result
%tmp.2 = load i32, i32* %result ; <i32> [#uses=1]
ret i32 %tmp.2
}