Hi,
Silvermont supports POPCNT. This patch enables POPCNT for Silvermont.
I also documented POPCNT for corei7, corei7-avx, core-avx-i, core-avx2 and
slm. Since POPCNT is enabled with -msse4.2, this patch doesn't change
code generation. It just makes it clear. OK to install?
Thanks.
H.J.
----
2013-11-21 H.J. Lu <hongjiu...@intel.com>
* config/i386/i386.c (processor_alias_table): Enable PTA_POPCNT
for Silvermont.
* doc/invoke.texi: Mention POPCNT for corei7, corei7-avx,
core-avx-i, core-avx2 and slm.
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 749be7f..b167217 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -3136,8 +3136,8 @@ ix86_option_override_internal (bool main_args_p,
PTA_64BIT | PTA_MMX | PTA_SSE | PTA_SSE2 | PTA_SSE3
| PTA_SSSE3 | PTA_CX16 | PTA_MOVBE | PTA_FXSR},
{"slm", PROCESSOR_SLM, CPU_SLM,
- PTA_64BIT | PTA_MMX | PTA_SSE | PTA_SSE2 | PTA_SSE3
- | PTA_SSSE3 | PTA_SSE4_1 | PTA_SSE4_2 | PTA_CX16 | PTA_MOVBE
+ PTA_64BIT | PTA_MMX | PTA_SSE | PTA_SSE2 | PTA_SSE3 | PTA_SSSE3
+ | PTA_SSE4_1 | PTA_SSE4_2 | PTA_CX16 | PTA_POPCNT | PTA_MOVBE
| PTA_FXSR},
{"geode", PROCESSOR_GEODE, CPU_GEODE,
PTA_MMX | PTA_3DNOW | PTA_3DNOW_A | PTA_PREFETCH_SSE | PTA_PRFCHW},
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 6fc56b9..fe787d3 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -14512,22 +14512,22 @@ Intel Core 2 CPU with 64-bit extensions, MMX, SSE,
SSE2, SSE3 and SSSE3
instruction set support.
@item corei7
-Intel Core i7 CPU with 64-bit extensions, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1
-and SSE4.2 instruction set support.
+Intel Core i7 CPU with 64-bit extensions, MMX, SSE, SSE2, SSE3, SSSE3,
+SSE4.1, SSE4.2 and POPCNT instruction set support.
@item corei7-avx
Intel Core i7 CPU with 64-bit extensions, MMX, SSE, SSE2, SSE3, SSSE3,
-SSE4.1, SSE4.2, AVX, AES and PCLMUL instruction set support.
+SSE4.1, SSE4.2, POPCNT, AVX, AES and PCLMUL instruction set support.
@item core-avx-i
Intel Core CPU with 64-bit extensions, MMX, SSE, SSE2, SSE3, SSSE3,
-SSE4.1, SSE4.2, AVX, AES, PCLMUL, FSGSBASE, RDRND and F16C instruction
-set support.
+SSE4.1, SSE4.2, POPCNT, AVX, AES, PCLMUL, FSGSBASE, RDRND and F16C
+instruction set support.
@item core-avx2
Intel Core CPU with 64-bit extensions, MOVBE, MMX, SSE, SSE2, SSE3, SSSE3,
-SSE4.1, SSE4.2, AVX, AVX2, AES, PCLMUL, FSGSBASE, RDRND, FMA, BMI, BMI2
-and F16C instruction set support.
+SSE4.1, SSE4.2, POPCNT, AVX, AVX2, AES, PCLMUL, FSGSBASE, RDRND, FMA,
+BMI, BMI2 and F16C instruction set support.
@item atom
Intel Atom CPU with 64-bit extensions, MOVBE, MMX, SSE, SSE2, SSE3 and SSSE3
@@ -14535,7 +14535,7 @@ instruction set support.
@item slm
Intel Silvermont CPU with 64-bit extensions, MOVBE, MMX, SSE, SSE2, SSE3,
SSSE3,
-SSE4.1 and SSE4.2 instruction set support.
+SSE4.1, SSE4.2 and POPCNT instruction set support.
@item k6
AMD K6 CPU with MMX instruction set support.
