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| author | Kyrylo Tkachov <kyrylo.tkachov@arm.com> | 2019-07-16 09:27:39 +0000 |
|---|---|---|
| committer | Kyrylo Tkachov <kyrylo.tkachov@arm.com> | 2019-07-16 09:27:39 +0000 |
| commit | 7bb8f7b06a98fc389c17267b9dc028b11bffbf92 (patch) | |
| tree | 10d45099739f394d2febc42f1e723d17045786f8 /lib/CodeGen/CGBuiltin.cpp | |
| parent | f9002194bb0f7ba2f6b3d9715d8083a78cbd1e8f (diff) | |
| download | clang-7bb8f7b06a98fc389c17267b9dc028b11bffbf92.tar.gz | |
[AArch64] Implement __jcvt intrinsic from Armv8.3-A
The jcvt intrinsic defined in ACLE [1] is available when ARM_FEATURE_JCVT is defined.
This change introduces the AArch64 intrinsic, wires it up to the instruction and a new clang builtin function.
The __ARM_FEATURE_JCVT macro is now defined when an Armv8.3-A or higher target is used.
I've implemented the target detection logic in Clang so that this feature is enabled for architectures from armv8.3-a onwards (so -march=armv8.4-a also enables this, for example).
make check-all didn't show any new failures.
[1] https://developer.arm.com/docs/101028/latest/data-processing-intrinsics
Differential Revision: https://reviews.llvm.org/D64495
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@366197 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/CGBuiltin.cpp')
| -rw-r--r-- | lib/CodeGen/CGBuiltin.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/CodeGen/CGBuiltin.cpp b/lib/CodeGen/CGBuiltin.cpp index c58d1018fa..acaa81ae8a 100644 --- a/lib/CodeGen/CGBuiltin.cpp +++ b/lib/CodeGen/CGBuiltin.cpp @@ -6977,6 +6977,14 @@ Value *CodeGenFunction::EmitAArch64BuiltinExpr(unsigned BuiltinID, CGM.getIntrinsic(Intrinsic::bitreverse, Arg->getType()), Arg, "rbit"); } + if (BuiltinID == AArch64::BI__builtin_arm_jcvt) { + assert((getContext().getTypeSize(E->getType()) == 32) && + "__jcvt of unusual size!"); + llvm::Value *Arg = EmitScalarExpr(E->getArg(0)); + return Builder.CreateCall( + CGM.getIntrinsic(Intrinsic::aarch64_fjcvtzs), Arg); + } + if (BuiltinID == AArch64::BI__clear_cache) { assert(E->getNumArgs() == 2 && "__clear_cache takes 2 arguments"); const FunctionDecl *FD = E->getDirectCallee(); |