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ab043ff680
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
17 lines
453 B
LLVM
17 lines
453 B
LLVM
; RUN: llc -mtriple=x86_64-apple-darwin < %s| FileCheck %s
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; A bug in DAGCombiner prevented it forming a zextload in this simple case
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; because it counted both the chain user and the real user against the
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; profitability total.
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define void @load_zext(i32* nocapture %p){
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entry:
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%0 = load i32, i32* %p, align 4
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%and = and i32 %0, 255
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tail call void @use(i32 %and)
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ret void
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; CHECK: movzbl ({{%r[a-z]+}}), {{%e[a-z]+}}
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}
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declare void @use(i32)
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