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author | Tim Northover <tnorthover@apple.com> | 2014-07-02 12:56:02 +0000 |
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committer | Tim Northover <tnorthover@apple.com> | 2014-07-02 12:56:02 +0000 |
commit | ce437d1ab312eeb3a267b5038a5ddba04f2f9e7b (patch) | |
tree | bbc05f317a7f22fc1934418b84c9f9eb3b178765 /lib/Sema/SemaChecking.cpp | |
parent | 862a959d36f83378dbc0a18079dea5a01394b36b (diff) |
ARM: add support for v8 ldaex/stlex builtins.
ARMv8 adds (to both AArch32 and AArch64) acquiring and releasing
variants of the exclusive operations, in line with the C++11 memory
model.
This adds support for two new intrinsics to expose them to C & C++
developers directly: __builtin_arm_ldaex and __builtin_arm_stlex, in
direct analogy with the versions with no implicit barrier.
rdar://problem/15885451
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@212175 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Sema/SemaChecking.cpp')
-rw-r--r-- | lib/Sema/SemaChecking.cpp | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/lib/Sema/SemaChecking.cpp b/lib/Sema/SemaChecking.cpp index cd31f72c65..9fa8fd1e41 100644 --- a/lib/Sema/SemaChecking.cpp +++ b/lib/Sema/SemaChecking.cpp @@ -486,12 +486,18 @@ bool Sema::CheckNeonBuiltinFunctionCall(unsigned BuiltinID, CallExpr *TheCall) { bool Sema::CheckARMBuiltinExclusiveCall(unsigned BuiltinID, CallExpr *TheCall, unsigned MaxWidth) { assert((BuiltinID == ARM::BI__builtin_arm_ldrex || + BuiltinID == ARM::BI__builtin_arm_ldaex || BuiltinID == ARM::BI__builtin_arm_strex || + BuiltinID == ARM::BI__builtin_arm_stlex || BuiltinID == AArch64::BI__builtin_arm_ldrex || - BuiltinID == AArch64::BI__builtin_arm_strex) && + BuiltinID == AArch64::BI__builtin_arm_ldaex || + BuiltinID == AArch64::BI__builtin_arm_strex || + BuiltinID == AArch64::BI__builtin_arm_stlex) && "unexpected ARM builtin"); bool IsLdrex = BuiltinID == ARM::BI__builtin_arm_ldrex || - BuiltinID == AArch64::BI__builtin_arm_ldrex; + BuiltinID == ARM::BI__builtin_arm_ldaex || + BuiltinID == AArch64::BI__builtin_arm_ldrex || + BuiltinID == AArch64::BI__builtin_arm_ldaex; DeclRefExpr *DRE =cast<DeclRefExpr>(TheCall->getCallee()->IgnoreParenCasts()); @@ -598,7 +604,9 @@ bool Sema::CheckARMBuiltinFunctionCall(unsigned BuiltinID, CallExpr *TheCall) { llvm::APSInt Result; if (BuiltinID == ARM::BI__builtin_arm_ldrex || - BuiltinID == ARM::BI__builtin_arm_strex) { + BuiltinID == ARM::BI__builtin_arm_ldaex || + BuiltinID == ARM::BI__builtin_arm_strex || + BuiltinID == ARM::BI__builtin_arm_stlex) { return CheckARMBuiltinExclusiveCall(BuiltinID, TheCall, 64); } @@ -627,7 +635,9 @@ bool Sema::CheckAArch64BuiltinFunctionCall(unsigned BuiltinID, llvm::APSInt Result; if (BuiltinID == AArch64::BI__builtin_arm_ldrex || - BuiltinID == AArch64::BI__builtin_arm_strex) { + BuiltinID == AArch64::BI__builtin_arm_ldaex || + BuiltinID == AArch64::BI__builtin_arm_strex || + BuiltinID == AArch64::BI__builtin_arm_stlex) { return CheckARMBuiltinExclusiveCall(BuiltinID, TheCall, 128); } |