diff options
| author | Sanjay Patel <spatel@rotateright.com> | 2015-05-05 21:40:38 +0000 |
|---|---|---|
| committer | Sanjay Patel <spatel@rotateright.com> | 2015-05-05 21:40:38 +0000 |
| commit | 801caff64d2f3eea7b97270855d765c34e102c19 (patch) | |
| tree | 4dec2f2e4d32c2921918afbda709e7a39f23f467 /clang/lib/CodeGen/CoverageMappingGen.cpp | |
| parent | f3343c5b38086d6824a45ecd544d066f60254e1a (diff) | |
| download | bcm5719-llvm-801caff64d2f3eea7b97270855d765c34e102c19.tar.gz bcm5719-llvm-801caff64d2f3eea7b97270855d765c34e102c19.zip | |
propagate IR-level fast-math-flags to DAG nodes (NFC)
This patch adds the minimum plumbing necessary to use IR-level
fast-math-flags (FMF) in the backend without actually using
them for anything yet. This is a follow-on to:
http://reviews.llvm.org/rL235997
...which split the existing nsw / nuw / exact flags and FMF
into their own struct.
There are 2 structural changes here:
1. The main diff is that we're preparing to extend the optimization
flags to affect more than just binary SDNodes. Eg, IR intrinsics
( https://llvm.org/bugs/show_bug.cgi?id=21290 ) or non-binop nodes
that don't even exist in IR such as FMA, FNEG, etc.
2. The other change is that we're actually copying the FP fast-math-flags
from the IR instructions to SDNodes.
Differential Revision: http://reviews.llvm.org/D8900
llvm-svn: 236546
Diffstat (limited to 'clang/lib/CodeGen/CoverageMappingGen.cpp')
0 files changed, 0 insertions, 0 deletions
