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| author | Richard Guenther <rguenther@suse.de> | 2006-12-14 13:09:24 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2006-12-14 13:09:24 +0000 |
| commit | 85aef79f75e6be8e8a8d7a1111f6110b98a609ca (patch) | |
| tree | 664d4031f261d73571b0dab79f7caeb6cbda1f05 /gcc | |
| parent | bbea461bd91a323cd5e4d537c7362abc7fe591e2 (diff) | |
| download | gcc-85aef79f75e6be8e8a8d7a1111f6110b98a609ca.zip gcc-85aef79f75e6be8e8a8d7a1111f6110b98a609ca.tar.gz gcc-85aef79f75e6be8e8a8d7a1111f6110b98a609ca.tar.bz2 | |
re PR middle-end/30198 (__real / __imag cexpi (x) can be folded to cos (x) / sin (x))
2006-12-14 Richard Guenther <rguenther@suse.de>
PR tree-optimization/30198
* fold-const.c (fold_unary): Fold REALPART_EXPR of cexpi to cos.
Fold IMAGPART_EXPR of cexpi to sin.
* gcc.dg/builtins-60.c: New testcase.
From-SVN: r119858
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/fold-const.c | 26 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/builtins-60.c | 16 |
4 files changed, 53 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e768519..aeb9d19 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2006-12-14 Richard Guenther <rguenther@suse.de> + + PR tree-optimization/30198 + * fold-const.c (fold_unary): Fold REALPART_EXPR of cexpi to cos. + Fold IMAGPART_EXPR of cexpi to sin. + 2006-12-14 Dorit Nuzman <dorit@il.ibm.com> Trevor Smigiel <trevor_smigiel@playstation.sony.com> diff --git a/gcc/fold-const.c b/gcc/fold-const.c index da1bfed..751ef2e 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -7715,6 +7715,19 @@ fold_unary (enum tree_code code, tree type, tree op0) tem = fold_build1 (REALPART_EXPR, itype, TREE_OPERAND (arg0, 0)); return fold_convert (type, tem); } + if (TREE_CODE (arg0) == CALL_EXPR) + { + tree fn = get_callee_fndecl (arg0); + if (DECL_BUILT_IN_CLASS (fn) == BUILT_IN_NORMAL) + switch (DECL_FUNCTION_CODE (fn)) + { + CASE_FLT_FN (BUILT_IN_CEXPI): + fn = mathfn_built_in (type, BUILT_IN_COS); + return build_function_call_expr (fn, TREE_OPERAND (arg0, 1)); + + default:; + } + } return NULL_TREE; case IMAGPART_EXPR: @@ -7741,6 +7754,19 @@ fold_unary (enum tree_code code, tree type, tree op0) tem = fold_build1 (IMAGPART_EXPR, itype, TREE_OPERAND (arg0, 0)); return fold_convert (type, negate_expr (tem)); } + if (TREE_CODE (arg0) == CALL_EXPR) + { + tree fn = get_callee_fndecl (arg0); + if (DECL_BUILT_IN_CLASS (fn) == BUILT_IN_NORMAL) + switch (DECL_FUNCTION_CODE (fn)) + { + CASE_FLT_FN (BUILT_IN_CEXPI): + fn = mathfn_built_in (type, BUILT_IN_SIN); + return build_function_call_expr (fn, TREE_OPERAND (arg0, 1)); + + default:; + } + } return NULL_TREE; default: diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 7ca2395..b99415c 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2006-12-14 Richard Guenther <rguenther@suse.de> + + PR tree-optimization/30198 + * gcc.dg/builtins-60.c: New testcase. + 2006-12-14 Dorit Nuzman <dorit@il.ibm.com> * lib/target-supports.exp (vect_no_align): Remove spu. diff --git a/gcc/testsuite/gcc.dg/builtins-60.c b/gcc/testsuite/gcc.dg/builtins-60.c new file mode 100644 index 0000000..b57679f --- /dev/null +++ b/gcc/testsuite/gcc.dg/builtins-60.c @@ -0,0 +1,16 @@ +/* { dg-do compile } */ +/* { dg-options "-fdump-tree-gimple" } */ + +double test1 (double x) +{ + return __real __builtin_cexpi (x); +} + +double test2 (double x) +{ + return __imag __builtin_cexpi (x); +} + +/* { dg-final { scan-tree-dump "cos" "gimple" } } */ +/* { dg-final { scan-tree-dump "sin" "gimple" } } */ +/* { dg-final { cleanup-tree-dump "gimple" } } */ |