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author | Hal Finkel <hfinkel@anl.gov> | 2013-09-18 03:29:45 +0000 |
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committer | Hal Finkel <hfinkel@anl.gov> | 2013-09-18 03:29:45 +0000 |
commit | 414a1bdbdaf250e0488589f12865c8961831b65d (patch) | |
tree | 508f9083a871e2cb37fd001d4df0e5ced4e4b5ff /include/clang/Basic/StmtNodes.td | |
parent | 60288600131c3f91bfc8ba512df9f2dd588e3308 (diff) | |
download | clang-414a1bdbdaf250e0488589f12865c8961831b65d.tar.gz clang-414a1bdbdaf250e0488589f12865c8961831b65d.tar.bz2 clang-414a1bdbdaf250e0488589f12865c8961831b65d.tar.xz |
Add the intrinsic __builtin_convertvector
LLVM supports applying conversion instructions to vectors of the same number of
elements (fptrunc, fptosi, etc.) but there had been no way for a Clang user to
cause such instructions to be generated when using builtin vector types.
C-style casting on vectors is already defined in terms of bitcasts, and so
cannot be used for these conversions as well (without leading to a very
confusing set of semantics). As a result, this adds a __builtin_convertvector
intrinsic (patterned after the OpenCL __builtin_astype intrinsic). This is
intended to aid the creation of vector intrinsic headers that create generic IR
instead of target-dependent intrinsics (in other words, this is a generic
_mm_cvtepi32_ps). As noted in the documentation, the action of
__builtin_convertvector is defined in terms of the action of a C-style cast on
each vector element.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@190915 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/clang/Basic/StmtNodes.td')
-rw-r--r-- | include/clang/Basic/StmtNodes.td | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/clang/Basic/StmtNodes.td b/include/clang/Basic/StmtNodes.td index 0da9b34028..69851a9d52 100644 --- a/include/clang/Basic/StmtNodes.td +++ b/include/clang/Basic/StmtNodes.td @@ -162,6 +162,7 @@ def CUDAKernelCallExpr : DStmt<CallExpr>; // Clang Extensions. def ShuffleVectorExpr : DStmt<Expr>; +def ConvertVectorExpr : DStmt<Expr>; def BlockExpr : DStmt<Expr>; def OpaqueValueExpr : DStmt<Expr>; |