diff options
Diffstat (limited to 'gcc/testsuite/g++.dg/torture')
-rw-r--r-- | gcc/testsuite/g++.dg/torture/pr53693.C | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/torture/pr53693.C b/gcc/testsuite/g++.dg/torture/pr53693.C new file mode 100644 index 00000000000..b67a484b969 --- /dev/null +++ b/gcc/testsuite/g++.dg/torture/pr53693.C @@ -0,0 +1,21 @@ +// { dg-do compile } + +void +filter_scanlines (void *src_buffer, void *dst_buffer, int dst_pitch, int width) +{ + int x; + unsigned short *src, *dst_a, *dst_b; + + src = (unsigned short *) src_buffer; + dst_a = (unsigned short *) dst_buffer; + dst_b = ((unsigned short *) dst_buffer) + (dst_pitch >> 1); + + for (x = 0; x < width; x++) + { + unsigned char gs, gh; + gs = src[x]; + gh = gs + (gs >> 1); + dst_a[x] = (gh << 5) | (gh); + dst_b[x] = ((gs - gh) << 5) | (gs - gh); + } +} |