llvm-mirror/test/Transforms/FunctionAttrs/2010-10-30-volatile.ll

; RUN: opt < %s -functionattrs -S | FileCheck %s
; PR8279

@g = constant i32 1

define void @foo() {
; CHECK: void @foo() #0 {
  %tmp = load volatile i32, i32* @g
  ret void
}

; CHECK: attributes #0 = { norecurse }
If a function does a volatile load from a global constant, do not consider it to be readonly. In fact, don't even consider it to be readonly if it does a volatile load from an AllocaInst either (it is debatable as to whether readonly would be correct or not in this case; play safe for the moment). This fixes PR8279. llvm-svn: 117783 2010-10-30 14:59:44 +02:00			`; RUN: opt < %s -functionattrs -S \| FileCheck %s`
			`; PR8279`

			`@g = constant i32 1`

			`define void @foo() {`
Revert "Revert "[FunctionAttrs] Identify norecurse functions"" This reapplies this patch, with test fixes. llvm-svn: 252871 2015-11-12 11:55:20 +01:00			`; CHECK: void @foo() #0 {`
[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"((?:=\|:\|^)\sload (?: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 22:17:42 +01:00			`%tmp = load volatile i32, i32* @g`
If a function does a volatile load from a global constant, do not consider it to be readonly. In fact, don't even consider it to be readonly if it does a volatile load from an AllocaInst either (it is debatable as to whether readonly would be correct or not in this case; play safe for the moment). This fixes PR8279. llvm-svn: 117783 2010-10-30 14:59:44 +02:00			`ret void`
			`}`
Revert "Revert "[FunctionAttrs] Identify norecurse functions"" This reapplies this patch, with test fixes. llvm-svn: 252871 2015-11-12 11:55:20 +01:00
			`; CHECK: attributes #0 = { norecurse }`