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sh.c (output_branch): Delete bogus code. 

* sh.c (output_branch): Delete bogus code.

	* sh.c (initial_elimination_offset):
	Fix FROM == RETURN_ADDRESS_POINTER_REGNUM case.

From-SVN: r43450
This commit is contained in:
J"orn Rennecke 2001-06-19 00:58:29 +00:00 committed by Joern Rennecke
parent c8b2822138
commit afbc5d8693
2 changed files with 17 additions and 25 deletions
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7
gcc/ChangeLog
View File

@ -1,3 +1,10 @@
Tue Jun 19 01:52:27 2001 J"orn Rennecke <amylaar@redhat.com>
* sh.c (output_branch): Delete bogus code.
* sh.c (initial_elimination_offset):
Fix FROM == RETURN_ADDRESS_POINTER_REGNUM case.
Mon Jun 18 12:50:49 2001 Jeffrey A Law (law@cygnus.com)
* flow.c (find_unreachable_blocks): New function.

35
gcc/config/sh/sh.c
View File

@ -802,12 +802,8 @@ output_branch (logic, insn, operands)
rtx insn;
rtx *operands;
{
int len = get_attr_length (insn);
switch (len)
switch (get_attr_length (insn))
{
case 16:
case 12:
case 6:
/* This can happen if filling the delay slot has caused a forward
branch to exceed its range (we could reverse it, but only
@ -830,24 +826,16 @@ output_branch (logic, insn, operands)
if (final_sequence
&& ! INSN_ANNULLED_BRANCH_P (XVECEXP (final_sequence, 0, 0)))
{
asm_fprintf (asm_out_file, "\tb%s%ss\t%LLF%d\n",
logic ? "f" : "t",
asm_fprintf (asm_out_file, "\tb%s%ss\t%LLF%d\n", logic ? "f" : "t",
ASSEMBLER_DIALECT ? "/" : ".", label);
print_slot (final_sequence);
}
else
asm_fprintf (asm_out_file, "\tb%s\t%LLF%d\n", logic ? "f" : "t",
label);
asm_fprintf (asm_out_file, "\tb%s\t%LLF%d\n", logic ? "f" : "t", label);
if (len == 6)
{
output_asm_insn ("bra\t%l0", &op0);
fprintf (asm_out_file, "\tnop\n");
}
else
output_far_jump (insn, op0);
ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "LF", label);
output_asm_insn ("bra\t%l0", &op0);
fprintf (asm_out_file, "\tnop\n");
ASM_OUTPUT_INTERNAL_LABEL(asm_out_file, "LF", label);
return "";
}
@ -856,6 +844,9 @@ output_branch (logic, insn, operands)
case 2:
return logic ? "bt%.\t%l0" : "bf%.\t%l0";
default:
/* There should be no longer branches now - that would
indicate that something has destroyed the branches set
up in machine_dependent_reorg. */
abort ();
}
}
@ -4555,13 +4546,7 @@ initial_elimination_offset (from, to)
if (from == RETURN_ADDRESS_POINTER_REGNUM
&& (to == FRAME_POINTER_REGNUM || to == STACK_POINTER_REGNUM))
{
int i, n = total_saved_regs_space;
for (i = PR_REG-1; i >= 0; i--)
if (live_regs_mask & (1 << i))
n -= 4;
return n + total_auto_space;
}
return UNITS_PER_WORD + total_auto_space;
abort ();
}