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| author | Sanjay Patel <spatel@rotateright.com> | 2015-05-22 21:10:06 +0000 |
|---|---|---|
| committer | Sanjay Patel <spatel@rotateright.com> | 2015-05-22 21:10:06 +0000 |
| commit | ba2ba80302182bcf1773c560b592949cd9a1d501 (patch) | |
| tree | 925620c95192cb142122963aa9512b1676a00243 /clang/lib/Frontend/CompilerInvocation.cpp | |
| parent | b2f6afb30ac3285f2d2db310ed283398860f12fc (diff) | |
| download | llvm-ba2ba80302182bcf1773c560b592949cd9a1d501.zip llvm-ba2ba80302182bcf1773c560b592949cd9a1d501.tar.gz llvm-ba2ba80302182bcf1773c560b592949cd9a1d501.tar.bz2 | |
make reciprocal estimate code generation more flexible by adding command-line options
This patch adds a class for processing many recip codegen possibilities.
The TargetRecip class is intended to handle both command-line options to llc as well
as options passed in from a front-end such as clang with the -mrecip option.
The x86 backend is updated to use the new functionality.
Only -mcpu=btver2 with -ffast-math should see a functional change from this patch.
All other CPUs continue to *not* use reciprocal estimates by default with -ffast-math.
Differential Revision: http://reviews.llvm.org/D8982
llvm-svn: 238051
Diffstat (limited to 'clang/lib/Frontend/CompilerInvocation.cpp')
0 files changed, 0 insertions, 0 deletions