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| author | J"orn Rennecke <joern.rennecke@st.com> | 2005-07-22 12:25:20 +0000 |
|---|---|---|
| committer | Joern Rennecke <amylaar@gcc.gnu.org> | 2005-07-22 13:25:20 +0100 |
| commit | 191e1ff2f56a8b5148ccca1e3c30283af9905cee (patch) | |
| tree | a98e7cdc5aa12f9912600717a656138bb0b828ce /gcc/ifcvt.c | |
| parent | 475a3eef78ce1a81c2eb9e391327d4163a4f7556 (diff) | |
| download | gcc-191e1ff2f56a8b5148ccca1e3c30283af9905cee.zip gcc-191e1ff2f56a8b5148ccca1e3c30283af9905cee.tar.gz gcc-191e1ff2f56a8b5148ccca1e3c30283af9905cee.tar.bz2 | |
re PR rtl-optimization/20370 (dead_or_predictable doesn't resize reg_n_info)
PR rtl-optimization/20370
* ifcvt.c (dead_or_predicable): Before calling propagate_block,
call allocate_reg_info if necessary.
From-SVN: r102282
Diffstat (limited to 'gcc/ifcvt.c')
| -rw-r--r-- | gcc/ifcvt.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/ifcvt.c b/gcc/ifcvt.c index d9f18bc..d74d945 100644 --- a/gcc/ifcvt.c +++ b/gcc/ifcvt.c @@ -3341,6 +3341,14 @@ dead_or_predicable (basic_block test_bb, basic_block merge_bb, /* ??? bb->local_set is only valid during calculate_global_regs_live, so we must recompute usage for MERGE_BB. Not so bad, I suppose, since we've already asserted that MERGE_BB is small. */ + /* If we allocated new pseudos (e.g. in the conditional move + expander called from noce_emit_cmove), we must resize the + array first. */ + if (max_regno < max_reg_num ()) + { + max_regno = max_reg_num (); + allocate_reg_info (max_regno, FALSE, FALSE); + } propagate_block (merge_bb, tmp, merge_set, merge_set, 0); /* For small register class machines, don't lengthen lifetimes of |