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MFC r259873:

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gcc: small enhancements for the arm support.

fixes GCC-PR target/31152

Obtained from:	gcc 4.3 (rev. r118461, 125973: GPLv2)
This commit is contained in:
pfg 2014-01-08 19:33:16 +00:00
parent aa3916c7c0
commit e22a9135f1
3 changed files with 123 additions and 5 deletions
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14
contrib/gcc/ChangeLog.gcc43
View File

@ -65,6 +65,12 @@
fvisibility-ms-compat.
* c.opt (fvisibility-ms-compat): New.
2007-06-23 Richard Earnshaw <rearnsha@arm.com> (r125973)
PR target/31152
* arm.md (negscc): Match the correct operand for optimized LT0 test.
Remove optimization for GT.
2007-06-05 Joerg Wunsch <j.gnu@uriah.heep.sax.de> (r125346)
PR preprocessor/23479
@ -594,6 +600,14 @@
* config/i386/i386.md (bswapsi2): New.
(bswapdi2): Ditto.
2006-11-03 Paul Brook <paul@codesourcery.com> (r118461)
gcc/
* config/arm/arm.c (arm_file_start): New function.
(TARGET_ASM_FILE_START): Define.
(arm_default_cpu): New variable.
(arm_override_options): Set arm_default_cpu.
2006-10-31 Geoffrey Keating <geoffk@apple.com> (r118360)
* coverage.c (coverage_checksum_string): Update comment.

109
contrib/gcc/config/arm/arm.c
View File

@ -154,6 +154,7 @@ static void arm_encode_section_info (tree, rtx, int);
#endif
static void arm_file_end (void);
static void arm_file_start (void);
#ifdef AOF_ASSEMBLER
static void aof_globalize_label (FILE *, const char *);
@ -202,6 +203,9 @@ static bool arm_tls_symbol_p (rtx x);
#undef TARGET_ATTRIBUTE_TABLE
#define TARGET_ATTRIBUTE_TABLE arm_attribute_table
#undef TARGET_ASM_FILE_START
#define TARGET_ASM_FILE_START arm_file_start
#undef TARGET_ASM_FILE_END
#define TARGET_ASM_FILE_END arm_file_end
@ -390,6 +394,9 @@ rtx arm_compare_op0, arm_compare_op1;
/* The processor for which instructions should be scheduled. */
enum processor_type arm_tune = arm_none;
/* The default processor used if not overriden by commandline. */
static enum processor_type arm_default_cpu = arm_none;
/* Which floating point model to use. */
enum arm_fp_model arm_fp_model;
@ -1020,8 +1027,9 @@ arm_override_options (void)
insn_flags = sel->flags;
}
sprintf (arm_arch_name, "__ARM_ARCH_%s__", sel->arch);
arm_default_cpu = (enum processor_type) (sel - all_cores);
if (arm_tune == arm_none)
arm_tune = (enum processor_type) (sel - all_cores);
arm_tune = arm_default_cpu;
}
/* The processor for which we should tune should now have been
@ -14457,6 +14465,105 @@ arm_asm_output_labelref (FILE *stream, const char *name)
asm_fprintf (stream, "%U%s", name);
}
static void
arm_file_start (void)
{
int val;
if (TARGET_BPABI)
{
const char *fpu_name;
if (arm_select[0].string)
asm_fprintf (asm_out_file, "\t.cpu %s\n", arm_select[0].string);
else if (arm_select[1].string)
asm_fprintf (asm_out_file, "\t.arch %s\n", arm_select[1].string);
else
asm_fprintf (asm_out_file, "\t.cpu %s\n",
all_cores[arm_default_cpu].name);
if (TARGET_SOFT_FLOAT)
{
if (TARGET_VFP)
fpu_name = "softvfp";
else
fpu_name = "softfpa";
}
else
{
switch (arm_fpu_arch)
{
case FPUTYPE_FPA:
fpu_name = "fpa";
break;
case FPUTYPE_FPA_EMU2:
fpu_name = "fpe2";
break;
case FPUTYPE_FPA_EMU3:
fpu_name = "fpe3";
break;
case FPUTYPE_MAVERICK:
fpu_name = "maverick";
break;
case FPUTYPE_VFP:
if (TARGET_HARD_FLOAT)
asm_fprintf (asm_out_file, "\t.eabi_attribute 27, 3\n");
if (TARGET_HARD_FLOAT_ABI)
asm_fprintf (asm_out_file, "\t.eabi_attribute 28, 1\n");
fpu_name = "vfp";
break;
default:
abort();
}
}
asm_fprintf (asm_out_file, "\t.fpu %s\n", fpu_name);
/* Some of these attributes only apply when the corresponding features
are used. However we don't have any easy way of figuring this out.
Conservatively record the setting that would have been used. */
/* Tag_ABI_PCS_wchar_t. */
asm_fprintf (asm_out_file, "\t.eabi_attribute 18, %d\n",
(int)WCHAR_TYPE_SIZE / BITS_PER_UNIT);
/* Tag_ABI_FP_rounding. */
if (flag_rounding_math)
asm_fprintf (asm_out_file, "\t.eabi_attribute 19, 1\n");
if (!flag_unsafe_math_optimizations)
{
/* Tag_ABI_FP_denomal. */
asm_fprintf (asm_out_file, "\t.eabi_attribute 20, 1\n");
/* Tag_ABI_FP_exceptions. */
asm_fprintf (asm_out_file, "\t.eabi_attribute 21, 1\n");
}
/* Tag_ABI_FP_user_exceptions. */
if (flag_signaling_nans)
asm_fprintf (asm_out_file, "\t.eabi_attribute 22, 1\n");
/* Tag_ABI_FP_number_model. */
asm_fprintf (asm_out_file, "\t.eabi_attribute 23, %d\n",
flag_finite_math_only ? 1 : 3);
/* Tag_ABI_align8_needed. */
asm_fprintf (asm_out_file, "\t.eabi_attribute 24, 1\n");
/* Tag_ABI_align8_preserved. */
asm_fprintf (asm_out_file, "\t.eabi_attribute 25, 1\n");
/* Tag_ABI_enum_size. */
asm_fprintf (asm_out_file, "\t.eabi_attribute 26, %d\n",
flag_short_enums ? 1 : 2);
/* Tag_ABI_optimization_goals. */
if (optimize_size)
val = 4;
else if (optimize >= 2)
val = 2;
else if (optimize)
val = 1;
else
val = 6;
asm_fprintf (asm_out_file, "\t.eabi_attribute 30, %d\n", val);
}
default_file_start();
}
static void
arm_file_end (void)
{

5
contrib/gcc/config/arm/arm.md
View File

@ -8841,15 +8841,12 @@
(clobber (reg:CC CC_REGNUM))]
"TARGET_ARM"
"*
if (GET_CODE (operands[3]) == LT && operands[3] == const0_rtx)
if (GET_CODE (operands[3]) == LT && operands[2] == const0_rtx)
return \"mov\\t%0, %1, asr #31\";
if (GET_CODE (operands[3]) == NE)
return \"subs\\t%0, %1, %2\;mvnne\\t%0, #0\";
if (GET_CODE (operands[3]) == GT)
return \"subs\\t%0, %1, %2\;mvnne\\t%0, %0, asr #31\";
output_asm_insn (\"cmp\\t%1, %2\", operands);
output_asm_insn (\"mov%D3\\t%0, #0\", operands);
return \"mvn%d3\\t%0, #0\";