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riscv-gcc-1
Commit 506f9fbf by Richard Earnshaw Committed by Richard Earnshaw
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(split_edge): Handle casesi insns. 

From-SVN: r30101
parent ee7b8369
Showing with 14 additions and 0 deletions
gcc/ChangeLog
...@@ -4,6 +4,7 @@ Wed Oct 20 10:46:41 1999 Richard Earnshaw (rearnsha@arm.com) ...@@ -4,6 +4,7 @@ Wed Oct 20 10:46:41 1999 Richard Earnshaw (rearnsha@arm.com)
* flow.c (merge_blocks_move_predecessor_nojumps): Re-order the basic * flow.c (merge_blocks_move_predecessor_nojumps): Re-order the basic
block records so that merge_blocks_nomove will clean up correctly. block records so that merge_blocks_nomove will clean up correctly.
(split_edge): Handle casesi insns.
Tue Oct 19 23:43:50 1999 Jeffrey A Law (law@cygnus.com) Tue Oct 19 23:43:50 1999 Jeffrey A Law (law@cygnus.com)
......
gcc/flow.c
...@@ -1484,6 +1484,19 @@ split_edge (edge_in) ...@@ -1484,6 +1484,19 @@ split_edge (edge_in)
--LABEL_NUSES (old_label); --LABEL_NUSES (old_label);
++LABEL_NUSES (new_label); ++LABEL_NUSES (new_label);
} }
/* Handle casesi dispatch insns */
if ((tmp = single_set (insn)) != NULL
&& SET_DEST (tmp) == pc_rtx
&& GET_CODE (SET_SRC (tmp)) == IF_THEN_ELSE
&& GET_CODE (XEXP (SET_SRC (tmp), 2)) == LABEL_REF
&& XEXP (XEXP (SET_SRC (tmp), 2), 0) == old_label)
{
XEXP (SET_SRC (tmp), 2) = gen_rtx_LABEL_REF (VOIDmode,
new_label);
--LABEL_NUSES (old_label);
++LABEL_NUSES (new_label);
}
} }
else else
{ {
......
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