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Commit 302c3d8e by Paul Brook Committed by Paul Brook
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invoke.texi: Document new ARM -mfpu= and -mcpu= options. 

2008-08-05  Paul Brook  <paul@codesourcery.com>

	gcc/
	* doc/invoke.texi: Document new ARM -mfpu= and -mcpu= options.
	* config/arm/arm.c (all_fpus): Add vfpv3 and vfpv3-d16.
	(fp_model_for_fpu): Add entry for FPUTYPE_VFP3D16.
	(arm_file_start): Add FPUTYPE_VFP3D16.  Rename vfp3 to vfpv3.
	* config/arm/arm.h (TARGET_VFPD32): Define.
	(TARGET_VFP3): Use TARGET_VFPD32.
	(fputype): Add FPUTYPE_VFP3D16.
	(LAST_VFP_REGNUM): Use TARGET_VFPD32.
	* config/arm/constraints.md ("w"): Use TARGET_VFPD32.
	* config/arm/arm-cores.def: Add cortex-r4f.
	* config/arm/arm-tune.md: Regenerate.

From-SVN: r138718
parent 49331b42
Showing with 44 additions and 13 deletions
gcc/ChangeLog
2008-08-05 Paul Brook <paul@codesourcery.com>
* doc/invoke.texi: Document new ARM -mfpu= and -mcpu= options.
* config/arm/arm.c (all_fpus): Add vfpv3 and vfpv3-d16.
(fp_model_for_fpu): Add entry for FPUTYPE_VFP3D16.
(arm_file_start): Add FPUTYPE_VFP3D16. Rename vfp3 to vfpv3.
* config/arm/arm.h (TARGET_VFPD32): Define.
(TARGET_VFP3): Use TARGET_VFPD32.
(fputype): Add FPUTYPE_VFP3D16.
(LAST_VFP_REGNUM): Use TARGET_VFPD32.
* config/arm/constraints.md ("w"): Use TARGET_VFPD32.
* config/arm/arm-cores.def: Add cortex-r4f.
* config/arm/arm-tune.md: Regenerate.
2008-08-05 Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
* config/spu_spu_mfcio.h: Wrap in extern "C" if __cplusplus.
......
gcc/config/arm/arm-cores.def
......@@ -117,5 +117,6 @@ ARM_CORE("mpcore", mpcore, 6K, FL_LDSCHED | FL_VFPV2, 9e)
ARM_CORE("arm1156t2-s", arm1156t2s, 6T2, FL_LDSCHED, 9e)
ARM_CORE("cortex-a8", cortexa8, 7A, FL_LDSCHED, 9e)
ARM_CORE("cortex-r4", cortexr4, 7R, FL_LDSCHED, 9e)
ARM_CORE("cortex-r4f", cortexr4f, 7R, FL_LDSCHED, 9e)
ARM_CORE("cortex-m3", cortexm3, 7M, FL_LDSCHED, 9e)
ARM_CORE("cortex-m1", cortexm1, 6M, FL_LDSCHED, 9e)
gcc/config/arm/arm-tune.md
;; -*- buffer-read-only: t -*-
;; Generated automatically by gentune.sh from arm-cores.def
(define_attr "tune"
"arm2,arm250,arm3,arm6,arm60,arm600,arm610,arm620,arm7,arm7d,arm7di,arm70,arm700,arm700i,arm710,arm720,arm710c,arm7100,arm7500,arm7500fe,arm7m,arm7dm,arm7dmi,arm8,arm810,strongarm,strongarm110,strongarm1100,strongarm1110,arm7tdmi,arm7tdmis,arm710t,arm720t,arm740t,arm9,arm9tdmi,arm920,arm920t,arm922t,arm940t,ep9312,arm10tdmi,arm1020t,arm9e,arm946es,arm966es,arm968es,arm10e,arm1020e,arm1022e,xscale,iwmmxt,arm926ejs,arm1026ejs,arm1136js,arm1136jfs,arm1176jzs,arm1176jzfs,mpcorenovfp,mpcore,arm1156t2s,cortexa8,cortexr4,cortexm3,cortexm1"
"arm2,arm250,arm3,arm6,arm60,arm600,arm610,arm620,arm7,arm7d,arm7di,arm70,arm700,arm700i,arm710,arm720,arm710c,arm7100,arm7500,arm7500fe,arm7m,arm7dm,arm7dmi,arm8,arm810,strongarm,strongarm110,strongarm1100,strongarm1110,arm7tdmi,arm7tdmis,arm710t,arm720t,arm740t,arm9,arm9tdmi,arm920,arm920t,arm922t,arm940t,ep9312,arm10tdmi,arm1020t,arm9e,arm946es,arm966es,arm968es,arm10e,arm1020e,arm1022e,xscale,iwmmxt,arm926ejs,arm1026ejs,arm1136js,arm1136jfs,arm1176jzs,arm1176jzfs,mpcorenovfp,mpcore,arm1156t2s,cortexa8,cortexr4,cortexr4f,cortexm3,cortexm1"
(const (symbol_ref "arm_tune")))
gcc/config/arm/arm.c
......@@ -700,6 +700,8 @@ static const struct fpu_desc all_fpus[] =
{"maverick", FPUTYPE_MAVERICK},
{"vfp", FPUTYPE_VFP},
{"vfp3", FPUTYPE_VFP3},
{"vfpv3", FPUTYPE_VFP3},
{"vfpv3-d16", FPUTYPE_VFP3D16},
{"neon", FPUTYPE_NEON}
};
......@@ -716,6 +718,7 @@ static const enum fputype fp_model_for_fpu[] =
ARM_FP_MODEL_FPA, /* FPUTYPE_FPA_EMU3 */
ARM_FP_MODEL_MAVERICK, /* FPUTYPE_MAVERICK */
ARM_FP_MODEL_VFP, /* FPUTYPE_VFP */
ARM_FP_MODEL_VFP, /* FPUTYPE_VFP3D16 */
ARM_FP_MODEL_VFP, /* FPUTYPE_VFP3 */
ARM_FP_MODEL_VFP /* FPUTYPE_NEON */
};
......@@ -17738,8 +17741,12 @@ arm_file_start (void)
fpu_name = "vfp";
set_float_abi_attributes = 1;
break;
case FPUTYPE_VFP3D16:
fpu_name = "vfpv3-d16";
set_float_abi_attributes = 1;
break;
case FPUTYPE_VFP3:
fpu_name = "vfp3";
fpu_name = "vfpv3";
set_float_abi_attributes = 1;
break;
case FPUTYPE_NEON:
......
gcc/config/arm/arm.h
......@@ -212,15 +212,20 @@ extern void (*arm_lang_output_object_attributes_hook)(void);
#define TARGET_THUMB1_ONLY (TARGET_THUMB1 && !arm_arch_notm)
/* The following two macros concern the ability to execute coprocessor
instructions for VFPv3 or NEON. TARGET_VFP3 is currently only ever
tested when we know we are generating for VFP hardware; we need to
be more careful with TARGET_NEON as noted below. */
instructions for VFPv3 or NEON. TARGET_VFP3/TARGET_VFPD32 are currently
only ever tested when we know we are generating for VFP hardware; we need
to be more careful with TARGET_NEON as noted below. */
/* FPU is VFPv3 (with twice the number of D registers). Setting the FPU to
Neon automatically enables VFPv3 too. */
/* FPU is has the full VFPv3/NEON register file of 32 D registers. */
#define TARGET_VFPD32 (arm_fp_model == ARM_FP_MODEL_VFP \
&& (arm_fpu_arch == FPUTYPE_VFP3 \
|| arm_fpu_arch == FPUTYPE_NEON))
/* FPU supports VFPv3 instructions. */
#define TARGET_VFP3 (arm_fp_model == ARM_FP_MODEL_VFP \
&& (arm_fpu_arch == FPUTYPE_VFP3 \
|| arm_fpu_arch == FPUTYPE_NEON))
&& (arm_fpu_arch == FPUTYPE_VFP3D16 \
|| TARGET_VFPD32))
/* FPU supports Neon instructions. The setting of this macro gets
revealed via __ARM_NEON__ so we add extra guards upon TARGET_32BIT
and TARGET_HARD_FLOAT to ensure that NEON instructions are
......@@ -299,6 +304,8 @@ enum fputype
FPUTYPE_MAVERICK,
/* VFP. */
FPUTYPE_VFP,
/* VFPv3-D16. */
FPUTYPE_VFP3D16,
/* VFPv3. */
FPUTYPE_VFP3,
/* Neon. */
......@@ -945,7 +952,7 @@ extern int arm_structure_size_boundary;
#define FIRST_VFP_REGNUM 63
#define D7_VFP_REGNUM 78 /* Registers 77 and 78 == VFP reg D7. */
#define LAST_VFP_REGNUM \
(TARGET_VFP3 ? LAST_HI_VFP_REGNUM : LAST_LO_VFP_REGNUM)
(TARGET_VFPD32 ? LAST_HI_VFP_REGNUM : LAST_LO_VFP_REGNUM)
#define IS_VFP_REGNUM(REGNUM) \
(((REGNUM) >= FIRST_VFP_REGNUM) && ((REGNUM) <= LAST_VFP_REGNUM))
......
gcc/config/arm/constraints.md
......@@ -46,7 +46,7 @@
"The Cirrus Maverick co-processor registers.")
(define_register_constraint "w"
"TARGET_32BIT ? (TARGET_VFP3 ? VFP_REGS : VFP_LO_REGS) : NO_REGS"
"TARGET_32BIT ? (TARGET_VFPD32 ? VFP_REGS : VFP_LO_REGS) : NO_REGS"
"The VFP registers @code{d0}-@code{d15}, or @code{d0}-@code{d31} for VFPv3.")
(define_register_constraint "x" "TARGET_32BIT ? VFP_D0_D7_REGS : NO_REGS"
......
gcc/doc/invoke.texi
......@@ -8602,7 +8602,8 @@ assembly code. Permissible names are: @samp{arm2}, @samp{arm250},
@samp{arm10e}, @samp{arm1020e}, @samp{arm1022e},
@samp{arm1136j-s}, @samp{arm1136jf-s}, @samp{mpcore}, @samp{mpcorenovfp},
@samp{arm1156t2-s}, @samp{arm1176jz-s}, @samp{arm1176jzf-s},
@samp{cortex-a8}, @samp{cortex-r4}, @samp{cortex-m3}, @samp{cortex-m1},
@samp{cortex-a8}, @samp{cortex-r4}, @samp{cortex-r4f}, @samp{cortex-m3},
@samp{cortex-m1},
@samp{xscale}, @samp{iwmmxt}, @samp{ep9312}.
@item -mtune=@var{name}
......@@ -8636,7 +8637,8 @@ of the @option{-mcpu=} option. Permissible names are: @samp{armv2},
@opindex mfp
This specifies what floating point hardware (or hardware emulation) is
available on the target. Permissible names are: @samp{fpa}, @samp{fpe2},
@samp{fpe3}, @samp{maverick}, @samp{vfp}. @option{-mfp} and @option{-mfpe}
@samp{fpe3}, @samp{maverick}, @samp{vfp}, @samp{vfpv3}, @samp{vfpv3-d16} and
@samp{neon}. @option{-mfp} and @option{-mfpe}
are synonyms for @option{-mfpu}=@samp{fpe}@var{number}, for compatibility
with older versions of GCC@.
......
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