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llvm-project/llvm/test/Transforms/FunctionAttrs/atomic.ll

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Revert a bit of r137667; the logic in question can safely handle atomic load/store. llvm-svn: 137702
2011-08-16 09:28:22 +08:00
; RUN: opt -basicaa -functionattrs -S < %s | FileCheck %s
; Atomic load/store to local doesn't affect whether a function is
; readnone/readonly.
define i32 @test1(i32 %x) uwtable ssp {
Modify the LLVM assembly output so that it uses references to represent function attributes. This makes the LLVM assembly look better. E.g.: define void @foo() #0 { ret void } attributes #0 = { nounwind noinline ssp } llvm-svn: 175605
2013-02-20 15:21:42 +08:00
; CHECK: define i32 @test1(i32 %x) #0 {
Revert a bit of r137667; the logic in question can safely handle atomic load/store. llvm-svn: 137702
2011-08-16 09:28:22 +08:00
entry:
%x.addr = alloca i32, align 4
store atomic i32 %x, i32* %x.addr seq_cst, align 4
[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
2015-02-28 05:17:42 +08:00
%r = load atomic i32, i32* %x.addr seq_cst, align 4
Revert a bit of r137667; the logic in question can safely handle atomic load/store. llvm-svn: 137702
2011-08-16 09:28:22 +08:00
ret i32 %r
}
; A function with an Acquire load is not readonly.
define i32 @test2(i32* %x) uwtable ssp {
Extend 'readonly' and 'readnone' to work on function arguments as well as functions. Make the function attributes pass add it to known library functions and when it can deduce it. llvm-svn: 185735
2013-07-06 08:29:58 +08:00
; CHECK: define i32 @test2(i32* nocapture readonly %x) #1 {
Revert a bit of r137667; the logic in question can safely handle atomic load/store. llvm-svn: 137702
2011-08-16 09:28:22 +08:00
entry:
[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
2015-02-28 05:17:42 +08:00
%r = load atomic i32, i32* %x seq_cst, align 4
Revert a bit of r137667; the logic in question can safely handle atomic load/store. llvm-svn: 137702
2011-08-16 09:28:22 +08:00
ret i32 %r
}
Modify the LLVM assembly output so that it uses references to represent function attributes. This makes the LLVM assembly look better. E.g.: define void @foo() #0 { ret void } attributes #0 = { nounwind noinline ssp } llvm-svn: 175605
2013-02-20 15:21:42 +08:00
; CHECK: attributes #0 = { readnone ssp uwtable }
; CHECK: attributes #1 = { ssp uwtable }