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| author | Zdenek Dvorak <dvorakz@suse.cz> | 2006-02-05 15:58:07 +0100 |
|---|---|---|
| committer | Zdenek Dvorak <rakdver@gcc.gnu.org> | 2006-02-05 14:58:07 +0000 |
| commit | 569f8d982a8147ed19d8370d127291c308116419 (patch) | |
| tree | 7defa2a131c1aee78633e3ed7d7b325c46ebf1dd /gcc/rtlanal.c | |
| parent | 93638ec7948abfd1c205d06c5c4cb9e603b78b32 (diff) | |
| download | gcc-569f8d982a8147ed19d8370d127291c308116419.zip gcc-569f8d982a8147ed19d8370d127291c308116419.tar.gz gcc-569f8d982a8147ed19d8370d127291c308116419.tar.bz2 | |
re PR rtl-optimization/26087 (ICE in df_find_use)
PR rtl-optimization/26087
* rtlanal.c (canonicalize_condition): Do not cross basic block
boundaries.
From-SVN: r110614
Diffstat (limited to 'gcc/rtlanal.c')
| -rw-r--r-- | gcc/rtlanal.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c index 91fb489..1390ad9 100644 --- a/gcc/rtlanal.c +++ b/gcc/rtlanal.c @@ -4508,6 +4508,7 @@ canonicalize_condition (rtx insn, rtx cond, int reverse, rtx *earliest, rtx op0, op1; int reverse_code = 0; enum machine_mode mode; + basic_block bb = BLOCK_FOR_INSN (insn); code = GET_CODE (cond); mode = GET_MODE (cond); @@ -4569,7 +4570,11 @@ canonicalize_condition (rtx insn, rtx cond, int reverse, rtx *earliest, if ((prev = prev_nonnote_insn (prev)) == 0 || !NONJUMP_INSN_P (prev) - || FIND_REG_INC_NOTE (prev, NULL_RTX)) + || FIND_REG_INC_NOTE (prev, NULL_RTX) + /* In cfglayout mode, there do not have to be labels at the + beginning of a block, or jumps at the end, so the previous + conditions would not stop us when we reach bb boundary. */ + || BLOCK_FOR_INSN (prev) != bb) break; set = set_of (op0, prev); |