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| author | Kaveh R. Ghazi <ghazi@caip.rutgers.edu> | 2003-09-09 22:10:32 +0000 |
|---|---|---|
| committer | Kaveh Ghazi <ghazi@gcc.gnu.org> | 2003-09-09 22:10:32 +0000 |
| commit | f7657db990578e6193922cc0a4f8969c1bef368a (patch) | |
| tree | 017b032798831b2ccb2f7a0e8cab504de72ba7fa /gcc/emit-rtl.c | |
| parent | dcbdd9cc82664884084bc48ec6869f893043f3c8 (diff) | |
| download | gcc-f7657db990578e6193922cc0a4f8969c1bef368a.zip gcc-f7657db990578e6193922cc0a4f8969c1bef368a.tar.gz gcc-f7657db990578e6193922cc0a4f8969c1bef368a.tar.bz2 | |
builtins.c (real_dconstp, [...]): New, split out from fold_builtin.
* builtins.c (real_dconstp, fold_builtin_logarithm,
fold_builtin_exponent): New, split out from fold_builtin. Also
generalize to add log2, log10, exp2 and exp10/pow10 equivalents.
* emit-rtl.c (dconst3, dconst10, dconstthird): New.
(init_emit_once): Initialize new dconsts, use ARRAY_SIZE in lieu
of hardcoded array size.
* fold-const.c (fold): Add cases for exp2, exp10 and pow10.
(tree_expr_nonnegative_p): Likewise.
* real.h (dconst3, dconst10, dconstthird): New.
testsuite:
* gcc.dg/torture/builtin-explog-1.c: New testcase.
From-SVN: r71252
Diffstat (limited to 'gcc/emit-rtl.c')
| -rw-r--r-- | gcc/emit-rtl.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c index 0668cfb..fbd72244 100644 --- a/gcc/emit-rtl.c +++ b/gcc/emit-rtl.c @@ -110,9 +110,12 @@ rtx const_true_rtx; REAL_VALUE_TYPE dconst0; REAL_VALUE_TYPE dconst1; REAL_VALUE_TYPE dconst2; +REAL_VALUE_TYPE dconst3; +REAL_VALUE_TYPE dconst10; REAL_VALUE_TYPE dconstm1; REAL_VALUE_TYPE dconstm2; REAL_VALUE_TYPE dconsthalf; +REAL_VALUE_TYPE dconstthird; /* All references to the following fixed hard registers go through these unique rtl objects. On machines where the frame-pointer and @@ -5414,13 +5417,17 @@ init_emit_once (int line_numbers) REAL_VALUE_FROM_INT (dconst0, 0, 0, double_mode); REAL_VALUE_FROM_INT (dconst1, 1, 0, double_mode); REAL_VALUE_FROM_INT (dconst2, 2, 0, double_mode); + REAL_VALUE_FROM_INT (dconst3, 3, 0, double_mode); + REAL_VALUE_FROM_INT (dconst10, 10, 0, double_mode); REAL_VALUE_FROM_INT (dconstm1, -1, -1, double_mode); REAL_VALUE_FROM_INT (dconstm2, -2, -1, double_mode); dconsthalf = dconst1; dconsthalf.exp--; - for (i = 0; i <= 2; i++) + real_arithmetic (&dconstthird, RDIV_EXPR, &dconst1, &dconst3); + + for (i = 0; i < (int) ARRAY_SIZE (const_tiny_rtx); i++) { REAL_VALUE_TYPE *r = (i == 0 ? &dconst0 : i == 1 ? &dconst1 : &dconst2); |