llvm-mirror/undef-sext.ll at a5f7171155e97ca652fc85aefcb83e8e1db4ca0f - llvm-mirror - Git.je (Gitea)

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David Blaikie ab043ff680 [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

llvm-svn: 230794

2015-02-27 21:17:42 +00:00

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 ; RUN: llc < %s -mtriple=armv7-apple-darwin -mcpu=cortex-a8 | FileCheck %s
 ; No need to sign-extend undef.
 define i32 @t(i32* %a) nounwind {
 entry:
 ; CHECK-LABEL: t:
 ; CHECK: ldr r0, [r0]
 ; CHECK: bx lr
   %0 = sext i16 undef to i32
   %1 = getelementptr inbounds i32, i32* %a, i32 %0
   %2 = load i32, i32* %1, align 4
   ret i32 %2
 }