mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-21 00:32:23 +00:00
8e2b2ae80e
Summary: hwsync is only required for seq_cst fences, acquire and release one can use the cheaper lwsync. Test Plan: Added some cases to atomics.ll + make check-all Reviewers: jfb, wschmidt Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D5317 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218995 91177308-0d34-0410-b5e6-96231b3b80d8
30 lines
763 B
LLVM
30 lines
763 B
LLVM
; RUN: llc < %s -mtriple=powerpc-apple-darwin -march=ppc32 -verify-machineinstrs | FileCheck %s --check-prefix=CHECK
|
|
; RUN: llc < %s -mtriple=powerpc-apple-darwin -march=ppc64 -verify-machineinstrs | FileCheck %s --check-prefix=CHECK
|
|
; RUN: llc < %s -mtriple=powerpc-apple-darwin -mcpu=440 | FileCheck %s --check-prefix=PPC440
|
|
|
|
; Fences
|
|
define void @fence_acquire() {
|
|
; CHECK-LABEL: fence_acquire
|
|
; CHECK: sync 1
|
|
; PPC440-NOT: sync 1
|
|
; PPC440: msync
|
|
fence acquire
|
|
ret void
|
|
}
|
|
define void @fence_release() {
|
|
; CHECK-LABEL: fence_release
|
|
; CHECK: sync 1
|
|
; PPC440-NOT: sync 1
|
|
; PPC440: msync
|
|
fence release
|
|
ret void
|
|
}
|
|
define void @fence_seq_cst() {
|
|
; CHECK-LABEL: fence_seq_cst
|
|
; CHECK: sync 0
|
|
; PPC440-NOT: sync 0
|
|
; PPC440: msync
|
|
fence seq_cst
|
|
ret void
|
|
}
|