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| author | Richard Biener <rguenther@suse.de> | 2014-11-12 13:45:48 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2014-11-12 13:45:48 +0000 |
| commit | eaeba53a031a1ea6ab493fc752acec00889d4f0b (patch) | |
| tree | 44d9afdc5f87319907d339ab2c182c28db164012 /gcc | |
| parent | 2079956a87de079b4a04ac938141e437e60bbff8 (diff) | |
| download | gcc-eaeba53a031a1ea6ab493fc752acec00889d4f0b.zip gcc-eaeba53a031a1ea6ab493fc752acec00889d4f0b.tar.gz gcc-eaeba53a031a1ea6ab493fc752acec00889d4f0b.tar.bz2 | |
match.pd: Implement simple complex operations cancelling.
2014-11-12 Richard Biener <rguenther@suse.de>
* match.pd: Implement simple complex operations cancelling.
* fold-const.c (fold_unary_loc): Remove them here.
* gcc.dg/tree-ssa/ssa-fre-32.c: Disable forwprop.
From-SVN: r217421
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/fold-const.c | 13 | ||||
| -rw-r--r-- | gcc/match.pd | 12 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-32.c | 2 |
5 files changed, 22 insertions, 14 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 8d52622b..09cd2bd 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2014-11-12 Richard Biener <rguenther@suse.de> + + * match.pd: Implement simple complex operations cancelling. + * fold-const.c (fold_unary_loc): Remove them here. + 2014-11-12 Joseph Myers <joseph@codesourcery.com> * cppbuiltin.c (define_builtin_macros_for_compilation_flags): diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 756f469..82e2414 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -7988,9 +7988,6 @@ fold_unary_loc (location_t loc, enum tree_code code, tree type, tree op0) case REALPART_EXPR: if (TREE_CODE (TREE_TYPE (arg0)) != COMPLEX_TYPE) return fold_convert_loc (loc, type, arg0); - if (TREE_CODE (arg0) == COMPLEX_EXPR) - return omit_one_operand_loc (loc, type, TREE_OPERAND (arg0, 0), - TREE_OPERAND (arg0, 1)); if (TREE_CODE (arg0) == COMPLEX_CST) return fold_convert_loc (loc, type, TREE_REALPART (arg0)); if (TREE_CODE (arg0) == PLUS_EXPR || TREE_CODE (arg0) == MINUS_EXPR) @@ -8031,9 +8028,6 @@ fold_unary_loc (location_t loc, enum tree_code code, tree type, tree op0) case IMAGPART_EXPR: if (TREE_CODE (TREE_TYPE (arg0)) != COMPLEX_TYPE) return build_zero_cst (type); - if (TREE_CODE (arg0) == COMPLEX_EXPR) - return omit_one_operand_loc (loc, type, TREE_OPERAND (arg0, 1), - TREE_OPERAND (arg0, 0)); if (TREE_CODE (arg0) == COMPLEX_CST) return fold_convert_loc (loc, type, TREE_IMAGPART (arg0)); if (TREE_CODE (arg0) == PLUS_EXPR || TREE_CODE (arg0) == MINUS_EXPR) @@ -13350,13 +13344,6 @@ fold_binary_loc (location_t loc, || (TREE_CODE (arg0) == INTEGER_CST && TREE_CODE (arg1) == INTEGER_CST)) return build_complex (type, arg0, arg1); - if (TREE_CODE (arg0) == REALPART_EXPR - && TREE_CODE (arg1) == IMAGPART_EXPR - && TREE_TYPE (TREE_OPERAND (arg0, 0)) == type - && operand_equal_p (TREE_OPERAND (arg0, 0), - TREE_OPERAND (arg1, 0), 0)) - return omit_one_operand_loc (loc, type, TREE_OPERAND (arg0, 0), - TREE_OPERAND (arg1, 0)); return NULL_TREE; case ASSERT_EXPR: diff --git a/gcc/match.pd b/gcc/match.pd index 39abe25..288be4c 100644 --- a/gcc/match.pd +++ b/gcc/match.pd @@ -558,3 +558,15 @@ along with GCC; see the file COPYING3. If not see /* Look through a sign-changing conversion. */ (if (TYPE_PRECISION (TREE_TYPE (@0)) == TYPE_PRECISION (type)) (convert @0))) + + +/* COMPLEX_EXPR and REALPART/IMAGPART_EXPR cancellations. */ +(simplify + (complex (realpart @0) (imagpart @0)) + @0) +(simplify + (realpart (complex @0 @1)) + @0) +(simplify + (imagpart (complex @0 @1)) + @1) diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 0b5b094..46ccf52 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2014-11-12 Richard Biener <rguenther@suse.de> + + * gcc.dg/tree-ssa/ssa-fre-32.c: Disable forwprop. + 2014-11-12 Joseph Myers <joseph@codesourcery.com> * gcc.dg/no-math-errno-1.c, gcc.dg/no-math-errno-2.c, diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-32.c b/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-32.c index 5a38f89..53a20f8 100644 --- a/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-32.c +++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-32.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O -fdump-tree-fre1-details" } */ +/* { dg-options "-O -fno-tree-forwprop -fdump-tree-fre1-details" } */ _Complex float m; |