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[sfnt] lowest gcc for vectors ( e1d0249e ) is changed to 4.7.

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__builtin_shuffle() was introduced in gcc-4.7.  The lowest
gcc to enable vector operation is delayed from 4.6 to 4.7.

* src/sfnt/pngshim.c (premultiply_data): Fix cpp-macro to
enable the vector operation, to change the lowest gcc version
from 4.6 to 4.7.
This commit is contained in:
suzuki toshiya 2017-09-13 22:17:03 +09:00
parent 5ad845771a
commit b757ddb162
2 changed files with 14 additions and 2 deletions
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11
ChangeLog
View File

@ -1,3 +1,14 @@
2017-09-13 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[sfnt] lowest gcc for vectors ( e1d0249e ) is changed to 4.7.
__builtin_shuffle() was introduced in gcc-4.7. The lowest
gcc to enable vector operation is delayed from 4.6 to 4.7.
* src/sfnt/pngshim.c (premultiply_data): Fix cpp-macro to
enable the vector operation, to change the lowest gcc version
from 4.6 to 4.7.
2017-09-13 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[cache] Fix a possible overflow by signed integer comparison.

5
src/sfnt/pngshim.c
View File

@ -59,10 +59,11 @@
/* the `vector_size' attribute was introduced in gcc 3.1, which */
/* predates clang; the `__BYTE_ORDER__' preprocessor symbol was */
/* introduced in gcc 4.6 and clang 3.2, respectively */
/* introduced in gcc 4.6 and clang 3.2, respectively. */
/* __builtin_shuffle() for gcc was introduced in gcc 4.7.0. */
#if ( ( defined( __GNUC__ ) && \
( ( __GNUC__ >= 5 ) || \
( ( __GNUC__ == 4 ) && ( __GNUC_MINOR__ >= 6 ) ) ) ) || \
( ( __GNUC__ == 4 ) && ( __GNUC_MINOR__ >= 7 ) ) ) ) || \
( defined( __clang__ ) && \
( ( __clang_major__ >= 4 ) || \
( ( __clang_major__ == 3 ) && ( __clang_minor__ >= 2 ) ) ) ) ) && \