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