diff options
Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_jit.c')
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_jit.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_jit.c b/src/gallium/drivers/llvmpipe/lp_jit.c index f7111c1e5c..13535dd638 100644 --- a/src/gallium/drivers/llvmpipe/lp_jit.c +++ b/src/gallium/drivers/llvmpipe/lp_jit.c @@ -36,8 +36,10 @@ #include <llvm-c/Transforms/Scalar.h> #include "util/u_memory.h" +#include "util/u_cpu_detect.h" #include "lp_screen.h" #include "lp_bld_intr.h" +#include "lp_bld_misc.h" #include "lp_jit.h" @@ -147,10 +149,16 @@ lp_jit_screen_init(struct llvmpipe_screen *screen) { char *error = NULL; -#ifdef LLVM_NATIVE_ARCH + util_cpu_detect(); + +#if 0 + /* For simulating less capable machines */ + util_cpu_caps.has_sse3 = 0; + util_cpu_caps.has_sse4_1 = 0; +#endif + LLVMLinkInJIT(); LLVMInitializeNativeTarget(); -#endif screen->module = LLVMModuleCreateWithName("llvmpipe"); @@ -168,8 +176,15 @@ lp_jit_screen_init(struct llvmpipe_screen *screen) LLVMAddTargetData(screen->target, screen->pass); /* These are the passes currently listed in llvm-c/Transforms/Scalar.h, * but there are more on SVN. */ + /* TODO: Add more passes */ LLVMAddConstantPropagationPass(screen->pass); - LLVMAddInstructionCombiningPass(screen->pass); + if(util_cpu_caps.has_sse4_1) { + /* FIXME: There is a bug in this pass, whereby the combination of fptosi + * and sitofp (necessary for trunc/floor/ceil/round implementation) + * somehow becomes invalid code. + */ + LLVMAddInstructionCombiningPass(screen->pass); + } LLVMAddPromoteMemoryToRegisterPass(screen->pass); LLVMAddGVNPass(screen->pass); LLVMAddCFGSimplificationPass(screen->pass); |