Skip to content

R
riscv-gcc-1
Commit 74d7ab55 by Jason Merrill Committed by Jason Merrill
Options

flow.c (find_basic_blocks): A CALL_INSN that can throw starts a new basic block. 

	* flow.c (find_basic_blocks): A CALL_INSN that can throw starts
	a new basic block.
	(find_basic_blocks_1): Likewise.

From-SVN: r17055
parent 0776059e
Showing with 13 additions and 2 deletions
gcc/ChangeLog
Thu Dec 11 22:02:10 1997 Jason Merrill <jason@yorick.cygnus.com>
* flow.c (find_basic_blocks): A CALL_INSN that can throw starts
a new basic block.
(find_basic_blocks_1): Likewise.
Thu Dec 11 21:08:48 1997 Jason Merrill <jason@yorick.cygnus.com>
* except.c (use_eh_context): Don't copy_rtx a REG.
......
gcc/flow.c
......@@ -304,6 +304,7 @@ flow_analysis (f, nregs, file)
{
register RTX_CODE prev_code = JUMP_INSN;
register RTX_CODE code;
int eh_region = 0;
max_uid_for_flow = 0;
......@@ -316,7 +317,7 @@ flow_analysis (f, nregs, file)
|| (GET_RTX_CLASS (code) == 'i'
&& (prev_code == JUMP_INSN
|| (prev_code == CALL_INSN
&& nonlocal_label_list != 0)
&& (nonlocal_label_list != 0 || eh_region))
|| prev_code == BARRIER)))
i++;
......@@ -325,6 +326,10 @@ flow_analysis (f, nregs, file)
if (code != NOTE)
prev_code = code;
else if (NOTE_LINE_NUMBER (insn) == NOTE_INSN_EH_REGION_BEG)
++eh_region;
else if (NOTE_LINE_NUMBER (insn) == NOTE_INSN_EH_REGION_END)
--eh_region;
}
}
......@@ -418,7 +423,7 @@ find_basic_blocks (f, nonlocal_label_list)
|| (GET_RTX_CLASS (code) == 'i'
&& (prev_code == JUMP_INSN
|| (prev_code == CALL_INSN
&& nonlocal_label_list != 0
&& (nonlocal_label_list != 0 || eh_note)
&& ! find_reg_note (insn, REG_RETVAL, NULL_RTX))
|| prev_code == BARRIER)))
{
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment