[libc-commits] [PATCH] D122689: [libc] Add mfma option to functions that use fma

Michael Jones via Phabricator via libc-commits libc-commits at lists.llvm.org
Tue Mar 29 15:07:04 PDT 2022


michaelrj created this revision.
michaelrj added reviewers: sivachandra, lntue.
Herald added subscribers: libc-commits, ecnelises, tschuett, mgorny.
Herald added projects: libc-project, All.
michaelrj requested review of this revision.

On Windows the functions that use fma don't properly include the fma
intrinsics unless -mfma is added to the compile options. This patch adds
the compile option to all of the functions that need it.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D122689

Files:
  libc/src/math/CMakeLists.txt
  libc/src/math/generic/CMakeLists.txt


Index: libc/src/math/generic/CMakeLists.txt
===================================================================
--- libc/src/math/generic/CMakeLists.txt
+++ libc/src/math/generic/CMakeLists.txt
@@ -481,6 +481,7 @@
     libc.include.math
   COMPILE_OPTIONS
     -O3
+    -mfma
 )
 
 add_entrypoint_object(
@@ -494,6 +495,7 @@
     libc.include.math
   COMPILE_OPTIONS
     -O3
+    -mfma
 )
 
 add_entrypoint_object(
@@ -508,6 +510,7 @@
     libc.include.math
   COMPILE_OPTIONS
     -O3
+    -mfma
 )
 
 add_entrypoint_object(
@@ -673,6 +676,7 @@
     libc.src.__support.FPUtil.fputil
   COMPILE_OPTIONS
     -O3
+    -mfma
 )
 
 add_entrypoint_object(
@@ -686,6 +690,7 @@
     libc.src.__support.FPUtil.fputil
   COMPILE_OPTIONS
     -O3
+    -mfma
 )
 
 add_entrypoint_object(
@@ -712,6 +717,7 @@
     libc.src.__support.FPUtil.fputil
   COMPILE_OPTIONS
     -O3
+    -mfma
 )
 
 add_entrypoint_object(
Index: libc/src/math/CMakeLists.txt
===================================================================
--- libc/src/math/CMakeLists.txt
+++ libc/src/math/CMakeLists.txt
@@ -50,6 +50,7 @@
     libc.src.__support.FPUtil.fputil
   COMPILE_OPTIONS
     -O2
+    -mfma
 )
 
 add_entrypoint_object(
@@ -62,6 +63,7 @@
     libc.src.__support.FPUtil.fputil
   COMPILE_OPTIONS
     -O2
+    -mfma
 )
 
 add_math_entrypoint_object(ceil)


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