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| author | Richard Kenner <kenner@gcc.gnu.org> | 1994-11-15 19:33:56 -0500 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1994-11-15 19:33:56 -0500 |
| commit | 9e8b2461bd1f8b308ca1d0fe406e46a97822316c (patch) | |
| tree | eeea59ec6818a934db499319c58434037bd8197e | |
| parent | 1324c5deb7f14b9b44806c91c1589fe396fec7f9 (diff) | |
| download | gcc-9e8b2461bd1f8b308ca1d0fe406e46a97822316c.zip gcc-9e8b2461bd1f8b308ca1d0fe406e46a97822316c.tar.gz gcc-9e8b2461bd1f8b308ca1d0fe406e46a97822316c.tar.bz2 | |
(relax_delay_slots): When invert a conditional jump over a single unconditional jump...
(relax_delay_slots): When invert a conditional jump over a single
unconditional jump, invert the INSN_FROM_TARGET_P bit of insns in the
delay slots.
From-SVN: r8452
| -rw-r--r-- | gcc/reorg.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/gcc/reorg.c b/gcc/reorg.c index ec21a35..cd7d652 100644 --- a/gcc/reorg.c +++ b/gcc/reorg.c @@ -3972,6 +3972,17 @@ relax_delay_slots (first) if (invert_jump (delay_insn, label)) { + int i; + + /* Must update the INSN_FROM_TARGET_P bits now that + the branch is reversed, so that mark_target_live_regs + will handle the delay slot insn correctly. */ + for (i = 1; i < XVECLEN (PATTERN (insn), 0); i++) + { + rtx slot = XVECEXP (PATTERN (insn), 0, i); + INSN_FROM_TARGET_P (slot) = ! INSN_FROM_TARGET_P (slot); + } + delete_insn (next); next = insn; } |