+2010-06-29 Eric Botcazou <ebotcazou@adacore.com>
+
+ PR rtl-optimization/44659
+ * combine.c (make_compound_operation) <SUBREG>: Do not return the
+ result of force_to_mode if it partially re-expanded the compound.
+
2010-06-28 Jan Hubicka <jh@suse.cz>
PR middle-end/44671
- * ipa-split.c (test_nonssa_use, mark_nonssa_use): Check also uses of RESULT_DECL.
+ * ipa-split.c (test_nonssa_use, mark_nonssa_use): Check also uses of
+ RESULT_DECL.
2010-06-28 Anatoly Sokolov <aesok@post.ru>
fold_unary_loc, fold_negate_const, fold_abs_const, fold_not_const,
round_up_loc): Adjust call to force_fit_type_double.
-2010-06-28 Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
+2010-06-28 Philipp Tomsich
<philipp.tomsich@theobroma-systems.com>
* config/rs6000/rs6000.h (PROCESSOR_TITAN): Declare.
* ipa-inline.c (add_new_edges_to_heap): Do not add edges to uninlinable
functions.
-2010-06-28 Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
+2010-06-28 Philipp Tomsich
<philipp.tomsich@theobroma-systems.com>
* config.gcc (powerpc*-*-*): Handle titan.
* config/rs6000/rs6000.c (titan_cost): New costs.
* omp-low.c (maybe_catch_exception): Likewise.
* Makefile.in: Update dependencies.
-2010-06-28 Bingfeng Mei <bmei@broadcom.com>
+2010-06-28 Bingfeng Mei <bmei@broadcom.com>
* cgraph.h (struct varpool_node): new used_from_object_file flag.
(struct cgraph_local_info): new used_from_object_file flag.
PR middle-end/44671
PR middle-end/44686
- * tree.c (build_function_decl_skip_args): Clear DECL_BUILT_IN on signature
- change.
+ * tree.c (build_function_decl_skip_args): Clear DECL_BUILT_IN on
+ signature change.
* ipa-split.c (split_function): Always clear DECL_BUILT_IN.
* ipa-prop.c (ipa_modify_formal_parameters): Likewise.
functions for dealing with three-operand statements.
* tree.c (commutative_ternary_tree_code): New function.
* tree.h (commutative_ternary_tree_code): Declare it.
- * tree-vrp.c (gimple_assign_nonnegative_warnv_p): Return false for ternary
- statements.
+ * tree-vrp.c (gimple_assign_nonnegative_warnv_p): Return false for
+ ternary statements.
(gimple_assign_nonzero_warnv_p): Likewise.
* tree-ssa-sccvn.c (stmt_has_constants): Handle GIMPLE_TERNARY_RHS.
* tree-ssa-ccp.c (get_rhs_assign_op_for_ccp): New static function.
* tree-inline.c (expand_call_inline): Pass translated return value of
cgraph_inline_failed_string to diagnostic function.
-2010-06-08 Andrew Pinski <pinskia@gmail.com>
+2010-06-08 Andrew Pinski
<pinskia@gmail.com>
Shujing Zhao <pearly.zhao@oracle.com>
PR c/37724
/* Call ourselves recursively on the inner expression. If we are
narrowing the object and it has a different RTL code from
what it originally did, do this SUBREG as a force_to_mode. */
-
- tem = make_compound_operation (SUBREG_REG (x), in_code);
-
{
- rtx simplified = simplify_subreg (mode, tem, GET_MODE (SUBREG_REG (x)),
- SUBREG_BYTE (x));
+ rtx inner = SUBREG_REG (x), simplified;
+
+ tem = make_compound_operation (inner, in_code);
+ simplified
+ = simplify_subreg (mode, tem, GET_MODE (inner), SUBREG_BYTE (x));
if (simplified)
tem = simplified;
- if (GET_CODE (tem) != GET_CODE (SUBREG_REG (x))
- && GET_MODE_SIZE (mode) < GET_MODE_SIZE (GET_MODE (SUBREG_REG (x)))
+ if (GET_CODE (tem) != GET_CODE (inner)
+ && GET_MODE_SIZE (mode) < GET_MODE_SIZE (GET_MODE (inner))
&& subreg_lowpart_p (x))
{
- rtx newer = force_to_mode (tem, mode, ~(HOST_WIDE_INT) 0,
- 0);
+ rtx newer = force_to_mode (tem, mode, ~(HOST_WIDE_INT) 0, 0);
/* If we have something other than a SUBREG, we might have
done an expansion, so rerun ourselves. */
newer = make_compound_operation (newer, in_code);
/* force_to_mode can expand compounds. If it just re-expanded the
- compound use gen_lowpart instead to convert to the desired
- mode. */
- if (rtx_equal_p (newer, x))
+ compound, use gen_lowpart to convert to the desired mode. */
+ if (rtx_equal_p (newer, x)
+ /* Likewise if it re-expanded the compound only partially.
+ This happens for SUBREG of ZERO_EXTRACT if they extract
+ the same number of bits. */
+ || (GET_CODE (newer) == SUBREG
+ && (GET_CODE (SUBREG_REG (newer)) == LSHIFTRT
+ || GET_CODE (SUBREG_REG (newer)) == ASHIFTRT)
+ && GET_CODE (inner) == AND
+ && rtx_equal_p (SUBREG_REG (newer), XEXP (inner, 0))))
return gen_lowpart (GET_MODE (x), tem);
return newer;
+2010-06-29 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR rtl-optimization/44659
+ * gcc.target/i386/extract-1.c: New.
+ * gcc.target/i386/extract-2.c: Likewise.
+ * gcc.target/i386/extract-3.c: Likewise.
+ * gcc.target/i386/extract-4.c: Likewise.
+ * gcc.target/i386/extract-5.c: Likewise.
+ * gcc.target/i386/extract-6.c: Likewise.
+
2010-06-28 Jakub Jelinek <jakub@redhat.com>
PR c++/44682
--- /dev/null
+/* { dg-do compile } */
+/* { dg-options "-O2 -mtune=generic" } */
+
+int
+foo (unsigned char x, unsigned char y)
+{
+ return (x % y) != 0;
+}
+
+/* { dg-final { scan-assembler-not "test\[b\]?\[^\\n\]*%\[a-d\]l" } } */
--- /dev/null
+/* { dg-do compile } */
+/* { dg-options "-O2 -mtune=generic" } */
+
+int
+foo (unsigned char x, unsigned char y)
+{
+ return (x % y) > 4;
+}
+
+/* { dg-final { scan-assembler-times "cmp\[b\]?\[^\\n\]*%\[a-d\]h" 1 } } */
+/* { dg-final { scan-assembler-not "cmp\[b\]?\[^\\n\]*%\[a-d\]l" } } */
--- /dev/null
+/* { dg-do compile } */
+/* { dg-options "-O2 -mtune=generic" } */
+
+typedef struct
+{
+ unsigned char c1;
+ unsigned char c2;
+ unsigned char c3;
+ unsigned char c4;
+} foo_t;
+
+int
+#ifndef __x86_64__
+__attribute__((regparm(3)))
+#endif
+foo (foo_t x)
+{
+ return x.c2 != 0;
+}
+
+/* { dg-final { scan-assembler-not "test\[b\]?\[^\\n\]*%\[a-z0-9\]+l" } } */
--- /dev/null
+/* { dg-do compile } */
+/* { dg-options "-O2 -mtune=generic" } */
+
+typedef struct
+{
+ unsigned char c1;
+ unsigned char c2;
+ unsigned char c3;
+ unsigned char c4;
+} foo_t;
+
+int
+#ifndef __x86_64__
+__attribute__((regparm(3)))
+#endif
+foo (foo_t x)
+{
+ return x.c2 > 4;
+}
+
+/* { dg-final { scan-assembler-times "cmp\[b\]?\[^\\n\]*%\[a-z0-9\]+h" 1 } } */
+/* { dg-final { scan-assembler-not "cmp\[b\]?\[^\\n\]*%\[a-z0-9\]+l" } } */
--- /dev/null
+/* { dg-do compile } */
+/* { dg-options "-O2 -mtune=generic" } */
+
+typedef struct
+{
+ unsigned int c1:8;
+ unsigned int c2:8;
+ unsigned int c3:8;
+ unsigned int c4:8;
+} foo_t;
+
+int
+#ifndef __x86_64__
+__attribute__((regparm(3)))
+#endif
+foo (foo_t x)
+{
+ return x.c2 != 0;
+}
+
+/* { dg-final { scan-assembler-not "test\[b\]?\[^\\n\]*%\[a-z0-9\]+l" } } */
--- /dev/null
+/* { dg-do compile } */
+/* { dg-options "-O2 -mtune=generic" } */
+
+typedef struct
+{
+ unsigned int c1:8;
+ unsigned int c2:8;
+ unsigned int c3:8;
+ unsigned int c4:8;
+
+} foo_t;
+
+int
+#ifndef __x86_64__
+__attribute__((regparm(3)))
+#endif
+foo (foo_t x)
+{
+ return x.c2 > 4;
+}
+
+/* { dg-final { scan-assembler-times "cmp\[b\]?\[^\\n\]*%\[a-z0-9\]+h" 1 } } */
+/* { dg-final { scan-assembler-not "cmp\[b\]?\[^\\n\]*%\[a-z0-9\]+l" } } */
git://gcc.gnu.org / gcc.git / commitdiff