[llvm-commits] CVS: llvm/Makefile.rules

[Chris Lattner]

Changes in directory llvm:

Makefile.rules updated: 1.391 -> 1.392
---
Log message:

Pass -fstrict-aliasing to the compiler when building a release build on darwin.
Darwin doesn't default to it being on.


---
Diffs of the changes:  (+8 -3)

 Makefile.rules |   11 ++++++++---
 1 files changed, 8 insertions(+), 3 deletions(-)


Index: llvm/Makefile.rules
diff -u llvm/Makefile.rules:1.391 llvm/Makefile.rules:1.392
--- llvm/Makefile.rules:1.391	Wed Jul 26 16:14:55 2006
+++ llvm/Makefile.rules	Thu Jul 27 13:19:51 2006
@@ -214,13 +214,18 @@
 else
   ifdef ENABLE_OPTIMIZED
     BuildMode := Release
-    # Don't use -fomit-frame-pointer on FreeBSD
+    # Don't use -fomit-frame-pointer on Darwin or FreeBSD.
     ifneq ($(OS),FreeBSD)
-    # Don't use -fomit-frame-pointer on Darwin, it breaks backtraces.
     ifneq ($(OS),Darwin)
       OmitFramePointer := -fomit-frame-pointer
     endif
     endif
+
+    # Darwin requires -fstrict-aliasing to be explicitly enabled.
+    ifeq ($(OS),Darwin)
+      EXTRA_OPTIONS += -fstrict-aliasing
+    endif
+
     CXX.Flags := $(OPTIMIZE_OPTION) $(OmitFramePointer)
     C.Flags   := $(OPTIMIZE_OPTION) $(OmitFramePointer)
     LD.Flags  := $(OPTIMIZE_OPTION)
@@ -251,7 +256,7 @@
 AR.Flags      := cru
 LibTool.Flags := --tag=CXX
 
-#Make Floating point ieee complient on alpha
+# Make Floating point IEEE compliant on Alpha.
 ifeq ($(ARCH),Alpha)
   CXX.Flags     += -mieee -fPIC
   CPP.BaseFlags += -mieee -fPIC