diff options
| author | José Fonseca <jfonseca@vmware.com> | 2010-07-22 18:37:46 +0100 |
|---|---|---|
| committer | José Fonseca <jfonseca@vmware.com> | 2010-07-29 19:10:59 +0100 |
| commit | e3d2ebac115f7b7899664fefc2652fb829acfa27 (patch) | |
| tree | 135cfc368ae426c6c6a485cb4a544098d636fedb /src/gallium/drivers/llvmpipe/lp_state_fs.c | |
| parent | 38f5b1bc38fde041162e90e0ba3955ac661e1abf (diff) | |
llvmpipe: Avoid corrupting the FPU stack with MMX instructions on 32bit OSes.
Unfortunately LLVM doesn't emit EMMS itself, and there is no
easy/effective way to disable MMX.
http://llvm.org/bugs/show_bug.cgi?id=3287
Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_state_fs.c')
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_state_fs.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_state_fs.c b/src/gallium/drivers/llvmpipe/lp_state_fs.c index 5953d690a4..dbcc286417 100644 --- a/src/gallium/drivers/llvmpipe/lp_state_fs.c +++ b/src/gallium/drivers/llvmpipe/lp_state_fs.c @@ -676,6 +676,11 @@ generate_fragment(struct llvmpipe_context *lp, color_ptr); } +#ifdef PIPE_ARCH_X86 + /* Avoid corrupting the FPU stack on 32bit OSes. */ + lp_build_intrinsic(builder, "llvm.x86.mmx.emms", LLVMVoidType(), NULL, 0); +#endif + LLVMBuildRetVoid(builder); LLVMDisposeBuilder(builder); |