llvm-6502/test/Analysis/ScalarEvolution/2012-03-26-LoadConstant.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

44 lines
1.5 KiB
LLVM

; RUN: opt < %s -basicaa -globalopt -instcombine -loop-rotate -licm -instcombine -indvars -loop-deletion -constmerge -S | FileCheck %s
; PR11882: ComputeLoadConstantCompareExitLimit crash.
;
; for.body is deleted leaving a loop-invariant load.
; CHECK-NOT: for.body
target datalayout = "e-p:64:64:64-n32:64"
@func_21_l_773 = external global i32, align 4
@g_814 = external global i32, align 4
@g_244 = internal global [1 x [0 x i32]] zeroinitializer, align 4
define void @func_21() nounwind uwtable ssp {
entry:
br label %lbl_818
lbl_818: ; preds = %for.end, %entry
call void (...)* @func_27()
store i32 0, i32* @g_814, align 4
br label %for.cond
for.cond: ; preds = %for.body, %lbl_818
%0 = load i32, i32* @g_814, align 4
%cmp = icmp sle i32 %0, 0
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
%idxprom = sext i32 %0 to i64
%arrayidx = getelementptr inbounds [0 x i32], [0 x i32]* getelementptr inbounds ([1 x [0 x i32]]* @g_244, i32 0, i64 0), i32 0, i64 %idxprom
%1 = load i32, i32* %arrayidx, align 1
store i32 %1, i32* @func_21_l_773, align 4
store i32 1, i32* @g_814, align 4
br label %for.cond
for.end: ; preds = %for.cond
%2 = load i32, i32* @func_21_l_773, align 4
%tobool = icmp ne i32 %2, 0
br i1 %tobool, label %lbl_818, label %if.end
if.end: ; preds = %for.end
ret void
}
declare void @func_27(...)