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| author | Richard Stallman <rms@gnu.org> | 1993-11-10 21:28:27 +0000 |
|---|---|---|
| committer | Richard Stallman <rms@gnu.org> | 1993-11-10 21:28:27 +0000 |
| commit | 29d40fa4d84c0ad8389798f95c97e763f9f522aa (patch) | |
| tree | d9cba89ff0f1ac1f0edabd3aa56b8d51b17d59f5 /gcc | |
| parent | 3fc2151db46c5f0e26f773520fe6c8af8c489e90 (diff) | |
| download | gcc-29d40fa4d84c0ad8389798f95c97e763f9f522aa.zip gcc-29d40fa4d84c0ad8389798f95c97e763f9f522aa.tar.gz gcc-29d40fa4d84c0ad8389798f95c97e763f9f522aa.tar.bz2 | |
(expand_divmod): If rem_flag, always force op0 to a register.
From-SVN: r6053
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/expmed.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/gcc/expmed.c b/gcc/expmed.c index fb4b9f0..aff1861 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -2403,8 +2403,9 @@ expand_divmod (rem_flag, code, mode, op0, op1, target, unsignedp) || code == ROUND_MOD_EXPR || code == ROUND_DIV_EXPR) { /* If we want the remainder, we may need to use OP0, so make sure - it and ADJUSTED_OP0 are in different registers. If we want to - preserve subexpressions, make sure OP0 is in a register. + it and ADJUSTED_OP0 are in different registers. We force OP0 + to a register in case it has any queued subexpressions, because + emit_cmp_insn will call emit_queue. If we don't want the remainder, we aren't going to use OP0 anymore. However, if we cannot clobber OP0 (and hence ADJUSTED_OP0), we must @@ -2414,7 +2415,7 @@ expand_divmod (rem_flag, code, mode, op0, op1, target, unsignedp) CAN_CLOBBER_OP0 will be zero and we know that OP0 cannot equal TARGET. */ - if (rem_flag && preserve_subexpressions_p ()) + if (rem_flag) op0 = force_reg (compute_mode, op0); if (! can_clobber_op0) |