diff options
| author | tkoenig <tkoenig@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-04-30 21:45:13 +0000 |
|---|---|---|
| committer | tkoenig <tkoenig@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-04-30 21:45:13 +0000 |
| commit | 3c73c0fb0a2396d2257b8d6192fc70102c52d458 (patch) | |
| tree | efd1bbd12f3f9ffed58a0089a798e89c2ca28db9 /gcc/fortran/frontend-passes.c | |
| parent | 2f96cc7d47b14873d577551358d49d602ddf393c (diff) | |
| download | gcc-3c73c0fb0a2396d2257b8d6192fc70102c52d458.tar.gz | |
2013-04-30 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/57071
* frontend-passes.c (optimize_power): Simplify
1**k to 1.
2013-04-30 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/57071
* gfortran.dg/power_5.f90: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@198476 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/fortran/frontend-passes.c')
| -rw-r--r-- | gcc/fortran/frontend-passes.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/fortran/frontend-passes.c b/gcc/fortran/frontend-passes.c index 63efb9f919c..a2e88b4f408 100644 --- a/gcc/fortran/frontend-passes.c +++ b/gcc/fortran/frontend-passes.c @@ -1148,6 +1148,24 @@ optimize_power (gfc_expr *e) *e = *ishft; return true; } + + else if (mpz_cmp_si (op1->value.integer, 1L) == 0) + { + op2 = e->value.op.op2; + if (op2 == NULL) + return false; + + gfc_free_expr (op1); + gfc_free_expr (op2); + + e->expr_type = EXPR_CONSTANT; + e->value.op.op1 = NULL; + e->value.op.op2 = NULL; + mpz_init_set_si (e->value.integer, 1); + /* Typespec cand location are still OK. */ + return true; + } + return false; } |