diff options
| author | Jan Hubicka <jh@suse.cz> | 2003-02-22 11:02:31 +0100 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2003-02-22 10:02:31 +0000 |
| commit | 1c4a429ab09b46100cd4b0444e6d5e2e8472e721 (patch) | |
| tree | 257ede1e5a0927db4b10d7b84ff244d229c10cd4 /gcc/expmed.c | |
| parent | 1e2115dcc04ef844f63f22923b83439bcbf31b1c (diff) | |
| download | gcc-1c4a429ab09b46100cd4b0444e6d5e2e8472e721.zip gcc-1c4a429ab09b46100cd4b0444e6d5e2e8472e721.tar.gz gcc-1c4a429ab09b46100cd4b0444e6d5e2e8472e721.tar.bz2 | |
expmed.c (expand_divmod): Undo sign extensions for unsigned operands
* expmed.c (expand_divmod): Undo sign extensions for unsigned operands
* cfgcleanup.c (try_forward_edges): Don't check loop structures
when not optimizing.
(cleanup_cfg): Do not iterate trought delete_trivially_dead_insns
when not expensive.
* toplev.c (rest_of_compilation): Duplicate loop headers only when
optimizing; Delete trivially dead insns early; fix optimize check.
* Makefile.in (c-decl.o, c-objc-common.o, cgraph.o, tree-inline.o): Add
dependency on cgraph.h
* c-decl.c: Include cgraph.h
(finish_function): Update call of tree_inlinable_function_p.
* c-objc-common.c: Include cgraph.h
* cgraph.h: New file.
* cgraphunit.c: New file.
* cgraph.c (cgraph_node, cgraph_edge): Move into cgraph.h
(cgraph_nodes, cgraph_n_nodes): Globalize.
(cgraph_finalize_function, cgraph_finalize_compilation_unit
cgraph_create_edges, cgraph_optimize, cgraph_mark_needed_node):
Move into cgraphunit.c
* tree-inline.c: Include cgraph.h
* tree-inline.c: Include cgraph.h
From-SVN: r63281
Diffstat (limited to 'gcc/expmed.c')
| -rw-r--r-- | gcc/expmed.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/gcc/expmed.c b/gcc/expmed.c index 9fe87b6..33d8152 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -2955,14 +2955,20 @@ expand_divmod (rem_flag, code, mode, op0, op1, target, unsignedp) int size; rtx insn, set; optab optab1, optab2; - int op1_is_constant, op1_is_pow2; + int op1_is_constant, op1_is_pow2 = 0; int max_cost, extra_cost; static HOST_WIDE_INT last_div_const = 0; + static HOST_WIDE_INT ext_op1; op1_is_constant = GET_CODE (op1) == CONST_INT; - op1_is_pow2 = (op1_is_constant - && ((EXACT_POWER_OF_2_OR_ZERO_P (INTVAL (op1)) - || (! unsignedp && EXACT_POWER_OF_2_OR_ZERO_P (-INTVAL (op1)))))); + if (op1_is_constant) + { + ext_op1 = INTVAL (op1); + if (unsignedp) + ext_op1 &= GET_MODE_MASK (mode); + op1_is_pow2 = ((EXACT_POWER_OF_2_OR_ZERO_P (ext_op1) + || (! unsignedp && EXACT_POWER_OF_2_OR_ZERO_P (-ext_op1)))); + } /* This is the structure of expand_divmod: @@ -3142,7 +3148,8 @@ expand_divmod (rem_flag, code, mode, op0, op1, target, unsignedp) unsigned HOST_WIDE_INT mh, ml; int pre_shift, post_shift; int dummy; - unsigned HOST_WIDE_INT d = INTVAL (op1); + unsigned HOST_WIDE_INT d = (INTVAL (op1) + & GET_MODE_MASK (compute_mode)); if (EXACT_POWER_OF_2_OR_ZERO_P (d)) { |