draw_llvm: fix segfaults on non-SSE2 CPUs where it is disabled (v2)

Changes in v2:
- Change function name

Currently draw_llvm refuses to create itself on non-SSE2 CPUs due to
an alleged LLVM bug.

However, this is implemented improperly, because other parts of draw
still attempt to access draw->llvm, resulting in segfaults.

Instead, put the check in debug_get_option_draw_use_llvm, check that
before calling draw_llvm_create, and then check whether draw->llvm is
non-null everywhere else.

1 files changed, 0 insertions, 7 deletions

diff --git a/src/gallium/auxiliary/draw/draw_llvm.c b/src/gallium/auxiliary/draw/draw_llvm.c
index 8d53601d195..58d3e345e5f 100644
--- a/src/gallium/auxiliary/draw/draw_llvm.c
+++ b/src/gallium/auxiliary/draw/draw_llvm.c
@@ -210,13 +210,6 @@ draw_llvm_create(struct draw_context *draw)
 {
    struct draw_llvm *llvm;
 
-#ifdef PIPE_ARCH_X86
-   util_cpu_detect();
-   /* require SSE2 due to LLVM PR6960. */
-   if (!util_cpu_caps.has_sse2)
-       return NULL;
-#endif
-
    llvm = CALLOC_STRUCT( draw_llvm );
    if (!llvm)
       return NULL;