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(save_call_clobbered_regs): Ensure any insns we add

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are in the same basic block as the insn we added them for.

From-SVN: r2726
This commit is contained in:
Richard Stallman 1992-11-09 20:07:35 +00:00
parent 885cde0193
commit 34536f93eb
1 changed files with 4 additions and 0 deletions
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4
gcc/caller-save.c
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@ -374,6 +374,7 @@ save_call_clobbered_regs (insn_mode)
for (b = 0; b < n_basic_blocks; b++)
{
regset regs_live = basic_block_live_at_start[b];
rtx prev_block_last = PREV_INSN (basic_block_head[b]);
REGSET_ELT_TYPE bit;
int offset, i, j;
int regno;
@ -490,6 +491,9 @@ save_call_clobbered_regs (insn_mode)
? insn : NEXT_INSN (insn)), 0,
regno, insn_mode, MOVE_MAX / UNITS_PER_WORD);
/* If we added any insns at the start of the block, update the start
of the block to point at those insns. */
basic_block_head[b] = NEXT_INSN (prev_block_last);
}
}