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| author | Jeffrey A Law <law@cygnus.com> | 1998-01-14 00:24:33 +0000 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 1998-01-13 17:24:33 -0700 |
| commit | a8decb2c2b4be39f422c559227cc5bfccc438e60 (patch) | |
| tree | 9b616f8dd8799a4726c6d3782ca44439c97247e1 /gcc/loop.c | |
| parent | 0e2b736c8077b268b5beb83fb6ab3745405a5407 (diff) | |
| download | gcc-a8decb2c2b4be39f422c559227cc5bfccc438e60.zip gcc-a8decb2c2b4be39f422c559227cc5bfccc438e60.tar.gz gcc-a8decb2c2b4be39f422c559227cc5bfccc438e60.tar.bz2 | |
loop.c (check_dbra_loop): Make sure initial value is a CONST_INT before trying to normalize it.
* loop.c (check_dbra_loop): Make sure initial value is a
CONST_INT before trying to normalize it.
From-SVN: r17352
Diffstat (limited to 'gcc/loop.c')
| -rw-r--r-- | gcc/loop.c | 9 |
1 files changed, 5 insertions, 4 deletions
@@ -6214,10 +6214,11 @@ check_dbra_loop (loop_end, insn_count, loop_start) comparison_val = INTVAL (XEXP (comparison, 1)); initial_value = bl->initial_value; - /* Normalize the initial value if it has no other use - except as a counter. This will allow a few more loops - to be reversed. */ - if (no_use_except_counting) + /* Normalize the initial value if it is an integer and + has no other use except as a counter. This will allow + a few more loops to be reversed. */ + if (no_use_except_counting + && GET_CODE (initial_value) == CONST_INT) { comparison_val = comparison_val - INTVAL (bl->initial_value); initial_value = const0_rtx; |