mesa/0001-llvmpipe-Work-without-sse2-if-llvm-is-new-enough.patch

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1.0 KiB
Diff

From a499fd73461257f284bd3194f9198dc484acd373 Mon Sep 17 00:00:00 2001
From: Adam Jackson <ajax@redhat.com>
Date: Thu, 4 Apr 2013 17:16:22 -0400
Subject: [PATCH] llvmpipe: Work without sse2 if llvm is new enough
At least on llvm 3.2 this appears to work fine. Tested on an Athlon XP
2600+, which has sse and 3dnow but not sse2.
Signed-off-by: Adam Jackson <ajax@redhat.com>
---
src/gallium/drivers/llvmpipe/lp_screen.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/src/gallium/drivers/llvmpipe/lp_screen.c b/src/gallium/drivers/llvmpipe/lp_screen.c
index 6700887..ebcf680 100644
--- a/src/gallium/drivers/llvmpipe/lp_screen.c
+++ b/src/gallium/drivers/llvmpipe/lp_screen.c
@@ -485,9 +485,10 @@ llvmpipe_create_screen(struct sw_winsys *winsys)
{
struct llvmpipe_screen *screen;
-#ifdef PIPE_ARCH_X86
- /* require SSE2 due to LLVM PR6960. */
util_cpu_detect();
+
+#if defined(PIPE_ARCH_X86) && HAVE_LLVM < 0x0302
+ /* require SSE2 due to LLVM PR6960. */
if (!util_cpu_caps.has_sse2)
return NULL;
#endif
--
1.8.2