llvm/test/CodeGen/X86/simple-zext.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
453 B
LLVM

; RUN: llc -mtriple=x86_64-apple-darwin < %s| FileCheck %s
; A bug in DAGCombiner prevented it forming a zextload in this simple case
; because it counted both the chain user and the real user against the
; profitability total.
define void @load_zext(i32* nocapture %p){
entry:
%0 = load i32, i32* %p, align 4
%and = and i32 %0, 255
tail call void @use(i32 %and)
ret void
; CHECK: movzbl ({{%r[a-z]+}}), {{%e[a-z]+}}
}
declare void @use(i32)