Avoids a branch and reduces code size a tiny bit:
text data bss dec hex filename
10804563 398653 2070368 13273584 ca89f0 /tmp/radeonsi_dri.so.old
10804499 398653 2070368 13273520 ca89b0 /tmp/radeonsi_dri.so
---
src/gallium/drivers/radeonsi/si_descriptors.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/gallium/drivers/radeonsi/si_descriptors.c
b/src/gallium/drivers/radeonsi/si_descriptors.c
index 57a3124..f368ea6 100644
--- a/src/gallium/drivers/radeonsi/si_descriptors.c
+++ b/src/gallium/drivers/radeonsi/si_descriptors.c
@@ -98,12 +98,12 @@ static uint64_t si_desc_extract_buffer_address(const
uint32_t *desc)
{
uint64_t va = desc[0] |
((uint64_t)G_008F04_BASE_ADDRESS_HI(desc[1]) << 32);
/* Sign-extend the 48-bit address. */
- if (va & (1ull << 47))
- va |= 0xffffull << 48;
+ va <<= 16;
+ va = (int64_t)va >> 16;
return va;
}
static void si_init_descriptor_list(uint32_t *desc_list,
unsigned element_dw_size,
--
2.7.4
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