Hi
The patch enables FP Reassociation pass AMD bdver1 and bdver2 architectures.
We note a performance uplift of around ~8% on calculix.
"make -k check" passes.
Is it OK for upstream?
Regards
Ganesh
Index: gcc/ChangeLog
===================================================================
--- gcc/ChangeLog (revision 199133)
+++ gcc/ChangeLog (working copy)
@@ -1,3 +1,8 @@
+2013-05-23 Ganesh Gopalasubramanian <ganesh.gopalasubraman...@amd.com>
+
+ * config/i386/i386.c (initial_ix86_tune_features): Enable
+ FP Reassociation for AMD bdver1 and bdver2.
+
2013-05-21 Christian Bruel <christian.br...@st.com>
* dwarf2out.c (multiple_reg_loc_descriptor): Use dbx_reg_number for
Index: gcc/config/i386/i386.c
===================================================================
--- gcc/config/i386/i386.c (revision 199133)
+++ gcc/config/i386/i386.c (working copy)
@@ -2026,7 +2026,7 @@
/* X86_TUNE_REASSOC_FP_TO_PARALLEL: Try to produce parallel computations
during reassociation of fp computation. */
- m_ATOM | m_HASWELL,
+ m_ATOM | m_HASWELL | m_BDVER1 | m_BDVER2,
/* X86_TUNE_GENERAL_REGS_SSE_SPILL: Try to spill general regs to SSE
regs instead of memory. */
-----Original Message-----
From: Gopalasubramanian, Ganesh
Sent: Monday, May 13, 2013 5:24 PM
To: gcc-patches@gcc.gnu.org
Cc: Uros Bizjak (ubiz...@gmail.com)
Subject: [PATCH,i386] FSGSBASE for AMD bdver3
Hi
The patch enables FSGSBASE instruction generation for AMD bdver3 architectures.
"make -k check" passes.
Is it OK for upstream?
Regards
Ganesh
Index: gcc/ChangeLog
===================================================================
--- gcc/ChangeLog (revision 198821)
+++ gcc/ChangeLog (working copy)
@@ -1,3 +1,8 @@
+2013-05-13 Ganesh Gopalasubramanian <ganesh.gopalasubraman...@amd.com>
+
+ * config/i386/i386.c (processor_alias_table): Add instruction
+ FSGSBASE for AMD bdver3 architecture.
+
2013-05-13 Martin Jambor <mjam...@suse.cz>
PR middle-end/42371
Index: gcc/config/i386/i386.c
===================================================================
--- gcc/config/i386/i386.c (revision 198821)
+++ gcc/config/i386/i386.c (working copy)
@@ -3000,7 +3000,7 @@
| PTA_SSE4_2 | PTA_AES | PTA_PCLMUL | PTA_AVX
| PTA_XOP | PTA_LWP | PTA_BMI | PTA_TBM | PTA_F16C
| PTA_FMA | PTA_PRFCHW | PTA_FXSR | PTA_XSAVE
- | PTA_XSAVEOPT},
+ | PTA_XSAVEOPT | PTA_FSGSBASE},
{"btver1", PROCESSOR_BTVER1, CPU_GENERIC64,
PTA_64BIT | PTA_MMX | PTA_SSE | PTA_SSE2 | PTA_SSE3
| PTA_SSSE3 | PTA_SSE4A |PTA_ABM | PTA_CX16 | PTA_PRFCHW
