[PATCH] Don't mention MMX in -msse etc. option descriptions

Jakub Jelinek jakub@redhat.com
Tue Oct 29 08:00:00 GMT 2019 

Hi!

While working on the OpenMP isa patch, I've noticed most of the x86 ISA
options imply in the help text that it enables MMX, when they do not.
We now have the mmx in sse2, so to some extent most of the built-in functions
are enabled with sse2 on 64-bit targets, but we do not enable MMX code
generation and I think listing MMX in there does more harm than good,
it is something that should better be explained in the documentation.

Ok for trunk?

2019-10-29  Jakub Jelinek  <jakub@redhat.com>

	* config/i386/i386.opt (-msse, -msse2, -msse3, -mssse3, -msse4.1,
	-msse4.2, -msse4, -mavx, -mavx2, -mavx512f, -mavx512pf, -mavx512er,
	-mavx512cd, -mavx512dq, -mavx512bw, -mavx512vl, -mavx512ifma,
	-mavx512vbmi, -mavx5124fmaps, -mavx5124vnniw, -mavx512vpopcntdq,
	-mavx512vbmi2, -mavx512bitalg, -mfma, -msse4a, -mavx512bf16): Don't
	mention MMX among supported builtins or code generation.

--- gcc/config/i386/i386.opt.jj	2019-09-11 21:50:55.000000000 +0200
+++ gcc/config/i386/i386.opt	2019-10-26 22:12:58.122039453 +0200
@@ -646,31 +646,31 @@ Support Athlon 3Dnow! built-in functions
 
 msse
 Target Report Mask(ISA_SSE) Var(ix86_isa_flags) Save
-Support MMX and SSE built-in functions and code generation.
+Support SSE built-in functions and code generation.
 
 msse2
 Target Report Mask(ISA_SSE2) Var(ix86_isa_flags) Save
-Support MMX, SSE and SSE2 built-in functions and code generation.
+Support SSE and SSE2 built-in functions and code generation.
 
 msse3
 Target Report Mask(ISA_SSE3) Var(ix86_isa_flags) Save
-Support MMX, SSE, SSE2 and SSE3 built-in functions and code generation.
+Support SSE, SSE2 and SSE3 built-in functions and code generation.
 
 mssse3
 Target Report Mask(ISA_SSSE3) Var(ix86_isa_flags) Save
-Support MMX, SSE, SSE2, SSE3 and SSSE3 built-in functions and code generation.
+Support SSE, SSE2, SSE3 and SSSE3 built-in functions and code generation.
 
 msse4.1
 Target Report Mask(ISA_SSE4_1) Var(ix86_isa_flags) Save
-Support MMX, SSE, SSE2, SSE3, SSSE3 and SSE4.1 built-in functions and code generation.
+Support SSE, SSE2, SSE3, SSSE3 and SSE4.1 built-in functions and code generation.
 
 msse4.2
 Target Report Mask(ISA_SSE4_2) Var(ix86_isa_flags) Save
-Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1 and SSE4.2 built-in functions and code generation.
+Support SSE, SSE2, SSE3, SSSE3, SSE4.1 and SSE4.2 built-in functions and code generation.
 
 msse4
 Target RejectNegative Report Mask(ISA_SSE4_2) Var(ix86_isa_flags) Save
-Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1 and SSE4.2 built-in functions and code generation.
+Support SSE, SSE2, SSE3, SSSE3, SSE4.1 and SSE4.2 built-in functions and code generation.
 
 mno-sse4
 Target RejectNegative Report InverseMask(ISA_SSE4_1) Var(ix86_isa_flags) Save
@@ -682,63 +682,63 @@ Target Undocumented Alias(mavx) Warn(%<-
 
 mavx
 Target Report Mask(ISA_AVX) Var(ix86_isa_flags) Save
-Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2 and AVX built-in functions and code generation.
+Support SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2 and AVX built-in functions and code generation.
 
 mavx2
 Target Report Mask(ISA_AVX2) Var(ix86_isa_flags) Save
-Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX and AVX2 built-in functions and code generation.
+Support SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX and AVX2 built-in functions and code generation.
 
 mavx512f
 Target Report Mask(ISA_AVX512F) Var(ix86_isa_flags) Save
-Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2 and AVX512F built-in functions and code generation.
+Support SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2 and AVX512F built-in functions and code generation.
 
 mavx512pf
 Target Report Mask(ISA_AVX512PF) Var(ix86_isa_flags) Save
-Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2 and AVX512F and AVX512PF built-in functions and code generation.
+Support SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2 and AVX512F and AVX512PF built-in functions and code generation.
 
 mavx512er
 Target Report Mask(ISA_AVX512ER) Var(ix86_isa_flags) Save
-Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2 and AVX512F and AVX512ER built-in functions and code generation.
+Support SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2 and AVX512F and AVX512ER built-in functions and code generation.
 
 mavx512cd
 Target Report Mask(ISA_AVX512CD) Var(ix86_isa_flags) Save
-Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2 and AVX512F and AVX512CD built-in functions and code generation.
+Support SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2 and AVX512F and AVX512CD built-in functions and code generation.
 
 mavx512dq
 Target Report Mask(ISA_AVX512DQ) Var(ix86_isa_flags) Save
-Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2 and AVX512F and AVX512DQ built-in functions and code generation.
+Support SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2 and AVX512F and AVX512DQ built-in functions and code generation.
 
 mavx512bw
 Target Report Mask(ISA_AVX512BW) Var(ix86_isa_flags) Save
-Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2 and AVX512F and AVX512BW built-in functions and code generation.
+Support SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2 and AVX512F and AVX512BW built-in functions and code generation.
 
 mavx512vl
 Target Report Mask(ISA_AVX512VL) Var(ix86_isa_flags) Save
-Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2 and AVX512F and AVX512VL built-in functions and code generation.
+Support SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2 and AVX512F and AVX512VL built-in functions and code generation.
 
 mavx512ifma
 Target Report Mask(ISA_AVX512IFMA) Var(ix86_isa_flags) Save
-Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2 and AVX512F and AVX512IFMA built-in functions and code generation.
+Support SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2 and AVX512F and AVX512IFMA built-in functions and code generation.
 
 mavx512vbmi
 Target Report Mask(ISA_AVX512VBMI) Var(ix86_isa_flags) Save
-Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2 and AVX512F and AVX512VBMI built-in functions and code generation.
+Support SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2 and AVX512F and AVX512VBMI built-in functions and code generation.
 
 mavx5124fmaps
 Target Report Mask(ISA_AVX5124FMAPS) Var(ix86_isa_flags2) Save
-Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, AVX512F and AVX5124FMAPS built-in functions and code generation.
+Support SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, AVX512F and AVX5124FMAPS built-in functions and code generation.
 
 mavx5124vnniw
 Target Report Mask(ISA_AVX5124VNNIW) Var(ix86_isa_flags2) Save
-Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, AVX512F and AVX5124VNNIW built-in functions and code generation.
+Support SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, AVX512F and AVX5124VNNIW built-in functions and code generation.
 
 mavx512vpopcntdq
 Target Report Mask(ISA_AVX512VPOPCNTDQ) Var(ix86_isa_flags) Save
-Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, AVX512F and AVX512VPOPCNTDQ built-in functions and code generation.
+Support SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, AVX512F and AVX512VPOPCNTDQ built-in functions and code generation.
 
 mavx512vbmi2
 Target Report Mask(ISA_AVX512VBMI2) Var(ix86_isa_flags) Save
-Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, AVX512F and AVX512VBMI2 built-in functions and code generation.
+Support SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, AVX512F and AVX512VBMI2 built-in functions and code generation.
 
 mavx512vnni
 Target Report Mask(ISA_AVX512VNNI) Var(ix86_isa_flags) Save
@@ -746,7 +746,7 @@ Support AVX512VNNI built-in functions an
 
 mavx512bitalg
 Target Report Mask(ISA_AVX512BITALG) Var(ix86_isa_flags) Save
-Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, AVX512F and AVX512BITALG built-in functions and code generation.
+Support SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, AVX512F and AVX512BITALG built-in functions and code generation.
 
 mavx512vp2intersect
 Target Report Mask(ISA_AVX512VP2INTERSECT) Var(ix86_isa_flags2) Save
@@ -754,11 +754,11 @@ Support AVX512VP2INTERSECT built-in func
 
 mfma
 Target Report Mask(ISA_FMA) Var(ix86_isa_flags) Save
-Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX and FMA built-in functions and code generation.
+Support SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX and FMA built-in functions and code generation.
 
 msse4a
 Target Report Mask(ISA_SSE4A) Var(ix86_isa_flags) Save
-Support MMX, SSE, SSE2, SSE3 and SSE4A built-in functions and code generation.
+Support SSE, SSE2, SSE3 and SSE4A built-in functions and code generation.
 
 mfma4
 Target Report Mask(ISA_FMA4) Var(ix86_isa_flags) Save
@@ -1105,7 +1105,7 @@ Generate a __return_loc section pointing
 
 mavx512bf16
 Target Report Mask(ISA_AVX512BF16) Var(ix86_isa_flags2) Save
-Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, AVX512F and
+Support SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, AVX512F and
 AVX512BF16 built-in functions and code generation.
 
 menqcmd

	Jakub

More information about the Gcc-patches mailing list