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| author | Richard Sandiford <richard.sandiford@arm.com> | 2018-07-30 11:23:26 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2018-07-30 11:23:26 +0000 |
| commit | 1dcadcf01d48dda372630478140e3fb4f6bc73ee (patch) | |
| tree | dd31e77ca31e106f993854b34e2832c8ad8edd9a /gcc/hwint.h | |
| parent | dc843a8597ef7ac7f2663120ae96c689c2dbbadb (diff) | |
| download | gcc-1dcadcf01d48dda372630478140e3fb4f6bc73ee.zip gcc-1dcadcf01d48dda372630478140e3fb4f6bc73ee.tar.gz gcc-1dcadcf01d48dda372630478140e3fb4f6bc73ee.tar.bz2 | |
Resync inline implementation of ceil_log2 (PR 86506)
In r262961 I only updated the out-of-line copy of ceil_log2. This patch
applies the same change to the other (inline) one.
2018-07-30 Richard Sandiford <richard.sandiford@arm.com>
gcc/
PR tree-optimization/86506
* hwint.h (ceil_log2): Resync with hwint.c implementation.
From-SVN: r263064
Diffstat (limited to 'gcc/hwint.h')
| -rw-r--r-- | gcc/hwint.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/hwint.h b/gcc/hwint.h index 5054d8e..8068cad 100644 --- a/gcc/hwint.h +++ b/gcc/hwint.h @@ -242,7 +242,7 @@ floor_log2 (unsigned HOST_WIDE_INT x) static inline int ceil_log2 (unsigned HOST_WIDE_INT x) { - return floor_log2 (x - 1) + 1; + return x == 0 ? 0 : floor_log2 (x - 1) + 1; } static inline int |