[PATCH] D29750: [PPC] Enable -fomit-frame-pointer by default for PPC

[Hiroshi Inoue via Phabricator via cfe-commits]

inouehrs created this revision.

This patch enables `-fomit-frame-pointer` option by default for PowerPC if -O1 or above optimization level is specified.
GCC already enables this option by default for -O1 or above in all of ppc32, ppc64 and ppc64le.
This option gives some performance improvements in many programs by reducing the overhead in method prologue and epilogue.


https://reviews.llvm.org/D29750

Files:
  lib/Driver/Tools.cpp


Index: lib/Driver/Tools.cpp
===================================================================
--- lib/Driver/Tools.cpp
+++ lib/Driver/Tools.cpp
@@ -3441,6 +3441,9 @@
     case llvm::Triple::mips64el:
     case llvm::Triple::mips:
     case llvm::Triple::mipsel:
+    case llvm::Triple::ppc:
+    case llvm::Triple::ppc64:
+    case llvm::Triple::ppc64le:
     case llvm::Triple::systemz:
     case llvm::Triple::x86:
     case llvm::Triple::x86_64:


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