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sparc.c (sparc_override_options): 90c701 renamed to tsc701.

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* sparc/sparc.c (sparc_override_options): 90c701 renamed to tsc701.
	(eligible_for_epilogue_delay_slot): Don't allow anything if
	-mbroken-saverestore.
	(output_function_prologue): Only use trivial save's if
	-mbroken-saverestore.

From-SVN: r11691
This commit is contained in:
Doug Evans 1996-04-10 22:37:08 +00:00
parent 44ae13fb02
commit 3592ea0d90
1 changed files with 30 additions and 17 deletions

47
gcc/config/sparc/sparc.c

@ -140,7 +140,7 @@ sparc_override_options ()
char *name;
} cpu_default[] = {
{ TARGET_CPU_sparc, "cypress" },
{ TARGET_CPU_sparclet, "90c701" },
{ TARGET_CPU_sparclet, "tsc701" },
{ TARGET_CPU_sparclite, "f930" },
{ TARGET_CPU_sparc64, "ultrasparc" },
{ 0 }
@ -165,7 +165,7 @@ sparc_override_options ()
{ "f934", PROCESSOR_F934, MASK_ISA, MASK_SPARCLITE|MASK_FPU },
{ "sparclet", PROCESSOR_SPARCLET, MASK_ISA, MASK_SPARCLET },
/* TEMIC sparclet */
{ "90c701", PROCESSOR_90C701, MASK_ISA, MASK_SPARCLET },
{ "tsc701", PROCESSOR_TSC701, MASK_ISA, MASK_SPARCLET },
/* "v9" is used to specify a true 64 bit architecture.
"v8plus" is what Sun calls Solaris2 running on UltraSPARC's. */
{ "v8plus", PROCESSOR_V8PLUS, MASK_ISA, MASK_V9 },
@ -1108,6 +1108,10 @@ eligible_for_epilogue_delay (trial, slot)
return (get_attr_in_uncond_branch_delay (trial) == IN_BRANCH_DELAY_TRUE);
return 0;
}
/* If only trivial `restore' insns work, nothing can go in the
delay slot. */
else if (TARGET_BROKEN_SAVERESTORE)
return 0;
pat = PATTERN (trial);
@ -3076,34 +3080,43 @@ output_function_prologue (file, size, leaf_function)
if (actual_fsize == 0)
/* do nothing. */ ;
else if (actual_fsize <= 4096)
else if (! leaf_function && ! TARGET_BROKEN_SAVERESTORE)
{
if (! leaf_function)
if (actual_fsize <= 4096)
fprintf (file, "\tsave %%sp,-%d,%%sp\n", actual_fsize);
else
fprintf (file, "\tadd %%sp,-%d,%%sp\n", actual_fsize);
}
else if (actual_fsize <= 8192)
{
/* For frames in the range 4097..8192, we can use just two insns. */
if (! leaf_function)
else if (actual_fsize <= 8192)
{
fprintf (file, "\tsave %%sp,-4096,%%sp\n");
fprintf (file, "\tadd %%sp,-%d,%%sp\n", actual_fsize - 4096);
}
else
{
fprintf (file, "\tadd %%sp,-4096,%%sp\n");
fprintf (file, "\tadd %%sp,-%d,%%sp\n", actual_fsize - 4096);
build_big_number (file, -actual_fsize, "%g1");
fprintf (file, "\tsave %%sp,%%g1,%%sp\n");
}
}
else
{
build_big_number (file, -actual_fsize, "%g1");
if (! leaf_function)
fprintf (file, "\tsave %%sp,%%g1,%%sp\n");
/* If the target has a broken save insn (only handles save %g0,%g0,%g0),
do the save and then handle like a leaf function.
We assume the environment will properly handle or otherwise avoid
trouble associated with an interrupt occuring after the `save' or
trap occuring during it. */
if (TARGET_BROKEN_SAVERESTORE)
fprintf (file, "\tsave\n");
if (actual_fsize <= 4096)
fprintf (file, "\tadd %%sp,-%d,%%sp\n", actual_fsize);
else if (actual_fsize <= 8192)
{
fprintf (file, "\tadd %%sp,-4096,%%sp\n");
fprintf (file, "\tadd %%sp,-%d,%%sp\n", actual_fsize - 4096);
}
else
fprintf (file, "\tadd %%sp,%%g1,%%sp\n");
{
build_big_number (file, -actual_fsize, "%g1");
fprintf (file, "\tadd %%sp,%%g1,%%sp\n");
}
}
/* If doing anything with PIC, do it now. */