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| author | Jim Grosbach <grosbach@apple.com> | 2010-06-18 23:03:10 +0000 |
|---|---|---|
| committer | Jim Grosbach <grosbach@apple.com> | 2010-06-18 23:03:10 +0000 |
| commit | dd67159ea024c078f6c9f3c41bc400b1f3f2f6e1 (patch) | |
| tree | eb274c405a8619ac88d34133a8a24a0667289388 /lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | |
| parent | 0c8db20bf20977226461d8cd4c6047e17f6c2cf5 (diff) | |
| download | external_llvm-dd67159ea024c078f6c9f3c41bc400b1f3f2f6e1.zip external_llvm-dd67159ea024c078f6c9f3c41bc400b1f3f2f6e1.tar.gz external_llvm-dd67159ea024c078f6c9f3c41bc400b1f3f2f6e1.tar.bz2 | |
back-end libcall handling for ATOMIC_SWAP (__sync_lock_test_and_set)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106342 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/LegalizeDAG.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index 70822b7..f360a01 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -2399,6 +2399,15 @@ std::pair <SDValue, SDValue> SelectionDAGLegalize::ExpandAtomic(SDNode *Node) { default: llvm_unreachable("Unhandled atomic intrinsic Expand!"); break; + case ISD::ATOMIC_SWAP: + switch (VT.SimpleTy) { + default: llvm_unreachable("Unexpected value type for atomic!"); + case MVT::i8: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_1; break; + case MVT::i16: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_2; break; + case MVT::i32: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_4; break; + case MVT::i64: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_8; break; + } + break; case ISD::ATOMIC_CMP_SWAP: switch (VT.SimpleTy) { default: llvm_unreachable("Unexpected value type for atomic!"); |