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i386.opt: New target option -msseregparm.

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2005-07-11  Richard Guenther  <rguenther@suse.de>

	* config/i386/i386.opt: New target option -msseregparm.
	* config/i386/i386.c (override_options): Error out for
	-msseregparm but no SSE support.
	(ix86_function_sseregparm): Check for global sseregparm.
	* doc/invoke.texi: Document -msseregparm.

From-SVN: r101871
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Richard Guenther 2005-07-11 09:35:16 +00:00 committed by Richard Biener
parent 4dda0c663b
commit 1f97667f30
4 changed files with 33 additions and 4 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2005-07-11 Richard Guenther <rguenther@suse.de>
* config/i386/i386.opt: New target option -msseregparm.
* config/i386/i386.c (override_options): Error out for
-msseregparm but no SSE support.
(ix86_function_sseregparm): Check for global sseregparm.
* doc/invoke.texi: Document -msseregparm.
2005-07-11 Kazuhiro Inaoka <inaoka.kazuhiro@renesas.com>
* config.gcc (m32r-*-linux*): Use the default extra_parts.

10
gcc/config/i386/i386.c
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@ -1573,6 +1573,11 @@ override_options (void)
target_flags |= MASK_NO_RED_ZONE;
}
/* Accept -msseregparm only if at least SSE support is enabled. */
if (TARGET_SSEREGPARM
&& ! TARGET_SSE)
error ("-msseregparm used without SSE enabled");
ix86_fpmath = TARGET_FPMATH_DEFAULT;
if (ix86_fpmath_string != 0)
@ -1947,8 +1952,9 @@ ix86_function_sseregparm (tree type, tree decl)
{
/* Use SSE registers to pass SFmode and DFmode arguments if requested
by the sseregparm attribute. */
if (type
&& lookup_attribute ("sseregparm", TYPE_ATTRIBUTES (type)))
if (TARGET_SSEREGPARM
|| (type
&& lookup_attribute ("sseregparm", TYPE_ATTRIBUTES (type))))
{
if (!TARGET_SSE)
{

4
gcc/config/i386/i386.opt
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@ -193,6 +193,10 @@ msse3
Target Report Mask(SSE3)
Support MMX, SSE, SSE2 and SSE3 built-in functions and code generation
msseregparm
Target RejectNegative Mask(SSEREGPARM)
Use SSE register passing conventions for SF and DF mode
msvr3-shlib
Target Report Mask(SVR3_SHLIB)
Uninitialized locals in .bss

15
gcc/doc/invoke.texi
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@ -514,8 +514,8 @@ Objective-C and Objective-C++ Dialects}.
-mmmx -msse -msse2 -msse3 -m3dnow @gol
-mthreads -mno-align-stringops -minline-all-stringops @gol
-mpush-args -maccumulate-outgoing-args -m128bit-long-double @gol
-m96bit-long-double -mregparm=@var{num} -momit-leaf-frame-pointer @gol
-mno-red-zone -mno-tls-direct-seg-refs @gol
-m96bit-long-double -mregparm=@var{num} -msseregparm @gol
-momit-leaf-frame-pointer -mno-red-zone -mno-tls-direct-seg-refs @gol
-mcmodel=@var{code-model} @gol
-m32 -m64}
@ -9030,6 +9030,17 @@ function by using the function attribute @samp{regparm}.
value, including any libraries. This includes the system libraries and
startup modules.
@item -msseregparm
@opindex msseregparm
Use SSE register passing conventions for float and double arguments
and return values. You can control this behavior for a specific
function by using the function attribute @samp{sseregparm}.
@xref{Function Attributes}.
@strong{Warning:} if you use this switch then you must build all
modules with the same value, including any libraries. This includes
the system libraries and startup modules.
@item -mpreferred-stack-boundary=@var{num}
@opindex mpreferred-stack-boundary
Attempt to keep the stack boundary aligned to a 2 raised to @var{num}