gcc isn't able to see that w is no greater than 1, so it generates
unnecessary loop instructions with while (w).
Signed-off-by: Matt Turner <matts...@gmail.com>
---
pixman/pixman-mmx.c | 10 +++++-----
1 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/pixman/pixman-mmx.c b/pixman/pixman-mmx.c
index f835a14..6c57909 100644
--- a/pixman/pixman-mmx.c
+++ b/pixman/pixman-mmx.c
@@ -1142,7 +1142,7 @@ mmx_composite_over_n_8888 (pixman_implementation_t *imp,
CHECKPOINT ();
- while (w)
+ if (w)
{
*dst = store8888 (over (vsrc, vsrca, load8888 (*dst)));
@@ -1383,7 +1383,7 @@ mmx_composite_over_8888_n_8888 (pixman_implementation_t
*imp,
src += 2;
}
- while (w)
+ if (w)
{
__m64 s = load8888 (*src);
__m64 d = load8888 (*dst);
@@ -1758,7 +1758,7 @@ mmx_composite_over_n_8_8888 (pixman_implementation_t *imp,
CHECKPOINT ();
- while (w)
+ if (w)
{
uint64_t m = *mask;
@@ -2026,7 +2026,7 @@ mmx_composite_src_n_8_8888 (pixman_implementation_t *imp,
CHECKPOINT ();
- while (w)
+ if (w)
{
uint64_t m = *mask;
@@ -2366,7 +2366,7 @@ mmx_composite_over_pixbuf_8888 (pixman_implementation_t
*imp,
src += 2;
}
- while (w)
+ if (w)
{
__m64 s = load8888 (*src);
__m64 d = load8888 (*dst);
--
1.7.3.4
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