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| author | Roger Sayle <roger@eyesopen.com> | 2003-05-06 03:14:10 +0000 |
|---|---|---|
| committer | Roger Sayle <sayle@gcc.gnu.org> | 2003-05-06 03:14:10 +0000 |
| commit | e82a312b55f88fc3d035e0c24409c71e043e9633 (patch) | |
| tree | 2a99b03c08d036a34af9b1b5c844c11e3d67a3af /gcc/real.h | |
| parent | d7b4a590279f012756741c12f2027d714ea776c4 (diff) | |
| download | gcc-e82a312b55f88fc3d035e0c24409c71e043e9633.zip gcc-e82a312b55f88fc3d035e0c24409c71e043e9633.tar.gz gcc-e82a312b55f88fc3d035e0c24409c71e043e9633.tar.bz2 | |
real.c (real_powi): New function to calculate the value of a real raised to an integer power, i.e.
* real.c (real_powi): New function to calculate the value of
a real raised to an integer power, i.e. pow(x,n) for int n.
(real_sqrt): Convert to using the faster do_add, do_multiply
and do_divide API for consistency with the rest of real.c.
* real.h (real_powi): Prototype here.
* builtins.c (fold_builtin): Avoid local variable mode when
evaluating sqrt at compile time. Attempt to evaluate pow at
compile-time, by checking for an integral exponent.
* gcc.dg/builtins-14.c: New test case.
From-SVN: r66515
Diffstat (limited to 'gcc/real.h')
| -rw-r--r-- | gcc/real.h | 6 |
1 files changed, 6 insertions, 0 deletions
@@ -365,4 +365,10 @@ extern bool real_sqrt PARAMS ((REAL_VALUE_TYPE *, enum machine_mode, const REAL_VALUE_TYPE *)); +/* Calculate R as X raised to the integer exponent N in mode MODE. */ +extern bool real_powi PARAMS ((REAL_VALUE_TYPE *, + enum machine_mode, + const REAL_VALUE_TYPE *, + HOST_WIDE_INT)); + #endif /* ! GCC_REAL_H */ |