maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/llvm/test/CodeGen/X86/atomic-load-store.ll

24 lines
629 B
LLVM
Raw Normal View History

Fix atomic load and store on x86 to pass -verify-machineinstrs (and possibly fix some subtle bugs involving passes which check mayStore()). This isn't exactly ideal, but it is good enough for the moment. llvm-svn: 139245
2011-09-08 02:48:32 +08:00
; RUN: llc < %s -mtriple=x86_64-apple-macosx10.7.0 -verify-machineinstrs | FileCheck %s
Fix PR15355 - Clear 'mayStore' flag when loading from the atomic variable before the spin loop - Clear kill flag from one use to multiple use in registers forming the address to that atomic variable - don't use a physical register as live-in register in BB (neither entry nor landing pad.) by copying it into virtual register (patch by Cameron Zwarich) llvm-svn: 176538
2013-03-06 08:17:04 +08:00
; RUN: llc < %s -mtriple=x86_64-apple-macosx10.7.0 -verify-machineinstrs -O0 | FileCheck %s
Basic tests for atomic load and store on x86. llvm-svn: 138486
2011-08-25 05:16:59 +08:00
define void @test1(i32* %ptr, i32 %val1) {
; CHECK: test1
; CHECK: xchgl %esi, (%rdi)
store atomic i32 %val1, i32* %ptr seq_cst, align 4
ret void
}
define void @test2(i32* %ptr, i32 %val1) {
; CHECK: test2
; CHECK: movl %esi, (%rdi)
store atomic i32 %val1, i32* %ptr release, align 4
ret void
}
define i32 @test3(i32* %ptr) {
; CHECK: test3
; CHECK: movl (%rdi), %eax
[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
%val = load atomic i32, i32* %ptr seq_cst, align 4
Basic tests for atomic load and store on x86. llvm-svn: 138486
2011-08-25 05:16:59 +08:00
ret i32 %val
}