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| author | Preston Gurd <preston.gurd@intel.com> | 2013-05-27 15:44:35 +0000 |
|---|---|---|
| committer | Preston Gurd <preston.gurd@intel.com> | 2013-05-27 15:44:35 +0000 |
| commit | b704d23062aa78b00999b75dcdcb628d4d84ee3f (patch) | |
| tree | f12904f5ac1680c5c7b3e1e7e7ea956714eef3af /lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | |
| parent | f594e41ae901efdec35e335ce7b01b3c19e83e3c (diff) | |
| download | llvm-b704d23062aa78b00999b75dcdcb628d4d84ee3f.tar.gz llvm-b704d23062aa78b00999b75dcdcb628d4d84ee3f.tar.bz2 llvm-b704d23062aa78b00999b75dcdcb628d4d84ee3f.tar.xz | |
Convert sqrt functions into sqrt instructions when -ffast-math is in effect.
When -ffast-math is in effect (on Linux, at least), clang defines
__FINITE_MATH_ONLY__ > 0 when including <math.h>. This causes the
preprocessor to include <bits/math-finite.h>, which renames the sqrt functions.
For instance, "sqrt" is renamed as "__sqrt_finite".
This patch adds the 3 new names in such a way that they will be treated
as equivalent to their respective original names.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182739 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp index aae11794eb..f6867840ae 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp @@ -5562,6 +5562,9 @@ void SelectionDAGBuilder::visitCall(const CallInst &I) { case LibFunc::sqrt: case LibFunc::sqrtf: case LibFunc::sqrtl: + case LibFunc::sqrt_finite: + case LibFunc::sqrtf_finite: + case LibFunc::sqrtl_finite: if (visitUnaryFloatCall(I, ISD::FSQRT)) return; break; |