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| author | Richard Guenther <rguenther@suse.de> | 2006-01-31 15:34:52 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2006-01-31 15:34:52 +0000 |
| commit | ee9631816531f0ef9005558cec7d10ea5ee6a074 (patch) | |
| tree | 15376ec8b6b321d2bd9b82addcfc370a7717f2e2 /gcc/doc | |
| parent | b082276563252b8e0721f1f9ee84dfaa98bcc620 (diff) | |
| download | gcc-ee9631816531f0ef9005558cec7d10ea5ee6a074.zip gcc-ee9631816531f0ef9005558cec7d10ea5ee6a074.tar.gz gcc-ee9631816531f0ef9005558cec7d10ea5ee6a074.tar.bz2 | |
invoke.texi (-msselibm): Document.
2006-01-31 Richard Guenther <rguenther@suse.de>
* doc/invoke.texi (-msselibm): Document.
* target.h (expand_library_builtin): New target hook.
* builtins.c (expand_builtin): Use expand_library_builtin.
(default_expand_library_builtin): New function.
* gcc.c (LINK_GCC_MATH_SPEC): Define.
(LINK_COMMAND_SPEC): Handle %(link_gcc_math).
(link_gcc_math_spec): Declare.
(static_specs): Add link_gcc_math_spec.
* expr.h (default_expand_library_builtin): Declare.
* target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
(TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
* config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
* config/i386/i386.opt (msselibm): New target option.
* config/i386/i386.c (ix86_builtin_function_variants): New array.
(ix86_init_sse_abi_builtins): New function.
(ix86_expand_library_builtin): Likewise.
(TARGET_EXPAND_LIBRARY_BUILTIN): Define.
(override_options): Handle error conditions wrt -msselibm.
(ix86_builtins): Add function codes for SSE2 ABI builtins.
(ix86_init_builtins): Call ix86_init_sse_abi_builtins.
* doc/extend.texi (__builtin_sse2_*): Document new target specific
builtins.
* gcc.target/i386/sselibm-1.c: New testcase.
* gcc.target/i386/sselibm-2.c: Likewise.
* gcc.target/i386/sselibm-3.c: Likewise.
* gcc.target/i386/sselibm-4.c: Likewise.
* gcc.target/i386/sselibm-5.c: Likewise.
From-SVN: r110439
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/extend.texi | 29 | ||||
| -rw-r--r-- | gcc/doc/invoke.texi | 8 |
2 files changed, 36 insertions, 1 deletions
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index 9d5a8f6..a20349d 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -6804,6 +6804,35 @@ v2sf __builtin_ia32_pswapdsf (v2sf) v2si __builtin_ia32_pswapdsi (v2si) @end smallexample +The following built-in functions are available when @option{-msse2} +is used. All of them generate calls to an SSE2 ABI IEEE754 math intrinsic +that is part of the name. Rather than using these directly you may +want them automatically substituted for calls to the regular intrinsics +using the @option{-msselibm}. + +@smallexample +double __builtin_sse2_acos (double) +float __builtin_sse2_acosf (float) +double __builtin_sse2_asin (double) +float __builtin_sse2_asinf (float) +double __builtin_sse2_atan (double) +float __builtin_sse2_atanf (float) +double __builtin_sse2_atan2 (double, double) +float __builtin_sse2_atan2f (float, float) +double __builtin_sse2_cos (double) +float __builtin_sse2_cosf (float) +double __builtin_sse2_exp (double) +float __builtin_sse2_expf (float) +double __builtin_sse2_log10 (double) +float __builtin_sse2_log10f (float) +double __builtin_sse2_log (double) +float __builtin_sse2_logf (float) +double __builtin_sse2_sin (double) +float __builtin_sse2_sinf (float) +double __builtin_sse2_tan (double) +float __builtin_sse2_tanf (float) +@end smallexample + @node MIPS DSP Built-in Functions @subsection MIPS DSP Built-in Functions diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index d8f69e8..8edff2a 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -528,7 +528,7 @@ Objective-C and Objective-C++ Dialects}. -mno-fp-ret-in-387 -msoft-float -msvr3-shlib @gol -mno-wide-multiply -mrtd -malign-double @gol -mpreferred-stack-boundary=@var{num} @gol --mmmx -msse -msse2 -msse3 -m3dnow @gol +-mmmx -msse -msse2 -msse3 -m3dnow -msselibm @gol -mthreads -mno-align-stringops -minline-all-stringops @gol -mpush-args -maccumulate-outgoing-args -m128bit-long-double @gol -m96bit-long-double -mregparm=@var{num} -msseregparm @gol @@ -9437,6 +9437,12 @@ supported architecture, using the appropriate flags. In particular, the file containing the CPU detection code should be compiled without these options. +@item -msselibm +@opindex msselibm +Use special versions of certain libm routines that come with an SSE +ABI and an SSE implementation. Useful together with @option{-mfpmath=sse} +to avoid moving values between SSE registers and the x87 FP stack. + @item -mpush-args @itemx -mno-push-args @opindex mpush-args |