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| author | Eli Bendersky <eliben@google.com> | 2013-07-03 19:19:12 +0000 |
|---|---|---|
| committer | Eli Bendersky <eliben@google.com> | 2013-07-03 19:19:12 +0000 |
| commit | 9b64ec18c10231d9890fe5f937384ab4756ac84d (patch) | |
| tree | fd2de983118f7f67abe4d8ff363dfeb976342c6e /clang/lib/CodeGen/TargetInfo.h | |
| parent | 7a433802cfc33ed6edc63d59284d4a4022cf4656 (diff) | |
| download | bcm5719-llvm-9b64ec18c10231d9890fe5f937384ab4756ac84d.tar.gz bcm5719-llvm-9b64ec18c10231d9890fe5f937384ab4756ac84d.zip | |
Add target hook CodeGen queries when generating builtin pow*.
Without fmath-errno, Clang currently generates calls to @llvm.pow.* intrinsics
when it sees pow*(). This may not be suitable for all targets (for
example le32/PNaCl), so the attached patch adds a target hook that CodeGen
queries. The target can state its preference for having or not having the
intrinsic generated. Non-PNaCl behavior remains unchanged;
PNaCl-specific test added.
llvm-svn: 185568
Diffstat (limited to 'clang/lib/CodeGen/TargetInfo.h')
| -rw-r--r-- | clang/lib/CodeGen/TargetInfo.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/TargetInfo.h b/clang/lib/CodeGen/TargetInfo.h index a7fb88649a3..1be7f4dfa45 100644 --- a/clang/lib/CodeGen/TargetInfo.h +++ b/clang/lib/CodeGen/TargetInfo.h @@ -74,6 +74,10 @@ namespace clang { /// through such registers. virtual bool extendPointerWithSExt() const { return false; } + /// Controls whether BIpow* emit an intrinsic call instead of a library + /// function call. + virtual bool emitIntrinsicForPow() const { return true; } + /// Determines the DWARF register number for the stack pointer, for /// exception-handling purposes. Implements __builtin_dwarf_sp_column. /// |
