Author: dgilmore Date: 2012-08-21 01:49:00 -0400 (Tue, 21 Aug 2012) New Revision: 4016
Modified: trunk/osprey/linux/make/gcommondefs Log: X8664 -m32 FP compilation mode change when compiling with GCC. When compiling with GCC at 32, add -mfpmath=sse -msse2, which prevents i387 FP instructions from being generated, otherwise the values for probabilities and frequencies can easily diverge between the 32 and 64 bit builds of the compiler. CR: Sun Chan Modified: trunk/osprey/linux/make/gcommondefs =================================================================== --- trunk/osprey/linux/make/gcommondefs 2012-08-21 05:47:27 UTC (rev 4015) +++ trunk/osprey/linux/make/gcommondefs 2012-08-21 05:49:00 UTC (rev 4016) @@ -1,7 +1,7 @@ # -*- Makefile -*- # # -# Copyright (C) 2009 Advanced Micro Devices, Inc. All Rights Reserved. +# Copyright (C) 2009, 2012 Advanced Micro Devices, Inc. All Rights Reserved. # # Copyright (C) 2000, 2001 Silicon Graphics, Inc. All Rights Reserved. # @@ -200,6 +200,15 @@ CCNAME += -m32 C++NAME += -m32 F90 += -m32 + ifeq ($(BUILD_COMPILER), GNU) + # Adding -mfpmath=sse -msse, to prevent compiler built + # 32 or 64 bit from producing different code in GRA. + # Note that -ffloat-store should be just as effective + # but -mfpmath=sse -msse produces better code. + CCNAME += -mfpmath=sse -msse2 + C++NAME += -mfpmath=sse -msse2 + F90 += -mfpmath=sse -msse2 + endif endif ifeq ($(BUILD_ARCH), X8664) ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Open64-devel mailing list Open64-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/open64-devel
