llvm-6502/test/Transforms/InstCombine/2008-04-29-VolatileLoadDontMerge.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

26 lines
988 B
LLVM

; RUN: opt < %s -instcombine -S | grep "load volatile" | count 2
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
target triple = "i386-apple-darwin8"
@g_1 = internal global i32 0 ; <i32*> [#uses=3]
define i32 @main() nounwind {
entry:
%tmp93 = icmp slt i32 0, 10 ; <i1> [#uses=0]
%tmp34 = load volatile i32, i32* @g_1, align 4 ; <i32> [#uses=1]
br label %bb
bb: ; preds = %bb, %entry
%b.0.reg2mem.0 = phi i32 [ 0, %entry ], [ %tmp6, %bb ] ; <i32> [#uses=1]
%tmp3.reg2mem.0 = phi i32 [ %tmp34, %entry ], [ %tmp3, %bb ] ; <i32> [#uses=1]
%tmp4 = add i32 %tmp3.reg2mem.0, 5 ; <i32> [#uses=1]
store volatile i32 %tmp4, i32* @g_1, align 4
%tmp6 = add i32 %b.0.reg2mem.0, 1 ; <i32> [#uses=2]
%tmp9 = icmp slt i32 %tmp6, 10 ; <i1> [#uses=1]
%tmp3 = load volatile i32, i32* @g_1, align 4 ; <i32> [#uses=1]
br i1 %tmp9, label %bb, label %bb11
bb11: ; preds = %bb
ret i32 0
}