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| author | Steve MacLean <sdmaclea@qti.qualcomm.com> | 2017-05-12 12:44:08 -0400 |
|---|---|---|
| committer | Russ Keldorph <russ.keldorph@microsoft.com> | 2017-06-01 09:39:20 -0700 |
| commit | 6179b52eb1d48933675f4bd319448d02c7cef0c4 (patch) | |
| tree | 3da8a8efcf8fd174e9f8f3e5bc01ad6ca89e7591 /src/jit/codegenarmarch.cpp | |
| parent | 1d2e6f8b131af5c4f684c35418ee6c14b417b316 (diff) | |
| download | coreclr-6179b52eb1d48933675f4bd319448d02c7cef0c4.tar.gz coreclr-6179b52eb1d48933675f4bd319448d02c7cef0c4.tar.bz2 coreclr-6179b52eb1d48933675f4bd319448d02c7cef0c4.zip | |
[Arm64] Use half barriers for IL Volatile implementation
Diffstat (limited to 'src/jit/codegenarmarch.cpp')
| -rw-r--r-- | src/jit/codegenarmarch.cpp | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/src/jit/codegenarmarch.cpp b/src/jit/codegenarmarch.cpp index e8391d1512..911f07e2cc 100644 --- a/src/jit/codegenarmarch.cpp +++ b/src/jit/codegenarmarch.cpp @@ -1343,8 +1343,13 @@ void CodeGen::genCodeForIndir(GenTreeIndir* tree) if (tree->gtFlags & GTF_IND_VOLATILE) { +#ifdef _TARGET_ARM64_ + // issue a INS_BARRIER_LD after a volatile LdInd operation + instGen_MemoryBarrier(INS_BARRIER_LD); +#else // issue a full memory barrier after a volatile LdInd operation instGen_MemoryBarrier(); +#endif // _TARGET_ARM64_ } } @@ -1370,7 +1375,7 @@ void CodeGen::genCodeForCpBlk(GenTreeBlk* cpBlkNode) if (cpBlkNode->gtFlags & GTF_BLK_VOLATILE) { - // issue a full memory barrier before & after a volatile CpBlkUnroll operation + // issue a full memory barrier before a volatile CpBlk operation instGen_MemoryBarrier(); } @@ -1378,8 +1383,13 @@ void CodeGen::genCodeForCpBlk(GenTreeBlk* cpBlkNode) if (cpBlkNode->gtFlags & GTF_BLK_VOLATILE) { - // issue a full memory barrier before & after a volatile CpBlkUnroll operation +#ifdef _TARGET_ARM64_ + // issue a INS_BARRIER_LD after a volatile CpBlk operation + instGen_MemoryBarrier(INS_BARRIER_LD); +#else + // issue a full memory barrier after a volatile CpBlk operation instGen_MemoryBarrier(); +#endif // _TARGET_ARM64_ } } |