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| author | Mandeep Singh Grang <mgrang@codeaurora.org> | 2018-10-18 23:35:35 +0000 |
|---|---|---|
| committer | Mandeep Singh Grang <mgrang@codeaurora.org> | 2018-10-18 23:35:35 +0000 |
| commit | ebb3b3ca30bc377eeebfac5e56b940f9a22b5b64 (patch) | |
| tree | cd44a4b386ff489d8566b2af249b2ce364bf44ba /lib/Sema/SemaChecking.cpp | |
| parent | ad1dc6bdd2fdcd025371797c37ccee751789e57c (diff) | |
| download | clang-ebb3b3ca30bc377eeebfac5e56b940f9a22b5b64.tar.gz | |
[COFF, ARM64] Add _ReadStatusReg and_WriteStatusReg intrinsics
Reviewers: rnk, compnerd, mstorsjo, efriedma, TomTan, haripul, javed.absar
Reviewed By: efriedma
Subscribers: dmajor, kristof.beyls, chrib, cfe-commits
Differential Revision: https://reviews.llvm.org/D53115
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@344765 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Sema/SemaChecking.cpp')
| -rw-r--r-- | lib/Sema/SemaChecking.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/Sema/SemaChecking.cpp b/lib/Sema/SemaChecking.cpp index 113626374c..239e3c8402 100644 --- a/lib/Sema/SemaChecking.cpp +++ b/lib/Sema/SemaChecking.cpp @@ -1749,6 +1749,13 @@ bool Sema::CheckAArch64BuiltinFunctionCall(unsigned BuiltinID, BuiltinID == AArch64::BI__builtin_arm_wsrp) return SemaBuiltinARMSpecialReg(BuiltinID, TheCall, 0, 5, true); + // Only check the valid encoding range. Any constant in this range would be + // converted to a register of the form S1_2_C3_C4_5. Let the hardware throw + // an exception for incorrect registers. This matches MSVC behavior. + if (BuiltinID == AArch64::BI_ReadStatusReg || + BuiltinID == AArch64::BI_WriteStatusReg) + return SemaBuiltinConstantArgRange(TheCall, 0, 0, 0x7fff); + if (BuiltinID == AArch64::BI__getReg) return SemaBuiltinConstantArgRange(TheCall, 0, 0, 31); |