#define __STDC_CONSTANT_MACROS
#endif
-#include "llvm-c/Core.h"
+#include <llvm-c/Core.h>
+#include <llvm-c/ExecutionEngine.h>
+#include <llvm/Target/TargetOptions.h>
+#include <llvm/ExecutionEngine/ExecutionEngine.h>
+#include <llvm/ExecutionEngine/JITEventListener.h>
+#include <llvm/Support/CommandLine.h>
+#include <llvm/Support/PrettyStackTrace.h>
#include "pipe/p_config.h"
#include "util/u_debug.h"
-#if (defined(PIPE_OS_WINDOWS) && !defined(PIPE_CC_MSVC)) || defined(PIPE_OS_EMBDDED)
+/**
+ * Register the engine with oprofile.
+ *
+ * This allows to see the LLVM IR function names in oprofile output.
+ *
+ * To actually work LLVM needs to be built with the --with-oprofile configure
+ * option.
+ *
+ * Also a oprofile:oprofile user:group is necessary. Which is not created by
+ * default on some distributions.
+ */
+extern "C" void
+lp_register_oprofile_jit_event_listener(LLVMExecutionEngineRef EE)
+{
+ llvm::unwrap(EE)->RegisterJITEventListener(llvm::createOProfileJITEventListener());
+}
-#include "llvm/Support/raw_ostream.h"
-class raw_debug_ostream :
- public llvm::raw_ostream
+extern "C" void
+lp_set_target_options(void)
{
- uint64_t pos;
-
- void write_impl(const char *Ptr, size_t Size);
- uint64_t current_pos() { return pos; }
- uint64_t current_pos() const { return pos; }
+#if defined(DEBUG)
+#if HAVE_LLVM >= 0x0207
+ llvm::JITEmitDebugInfo = true;
+#endif
+#endif
-#if HAVE_LLVM >= 0x207
- uint64_t preferred_buffer_size() { return 512; }
+ /*
+ * LLVM revision 123367 switched the default stack alignment to 16 bytes on
+ * Linux (and several other Unices in later revisions), to match recent gcc
+ * versions.
+ *
+ * However our drivers can be loaded by old binary applications, still
+ * maintaining a 4 bytes stack alignment. Therefore we must tell LLVM here
+ * to only assume a 4 bytes alignment for backwards compatibility.
+ */
+#if defined(PIPE_ARCH_X86)
+#if HAVE_LLVM >= 0x0300
+ llvm::StackAlignmentOverride = 4;
#else
- size_t preferred_buffer_size() { return 512; }
+ llvm::StackAlignment = 4;
+#endif
+#endif
+
+#if defined(DEBUG) || defined(PROFILE)
+ llvm::NoFramePointerElim = true;
#endif
-};
+ llvm::NoExcessFPPrecision = false;
-void
-raw_debug_ostream::write_impl(const char *Ptr, size_t Size)
-{
- if (Size > 0) {
- char *lastPtr = (char *)&Ptr[Size];
- char last = *lastPtr;
- *lastPtr = 0;
- _debug_printf("%*s", Size, Ptr);
- *lastPtr = last;
- pos += Size;
+ /* XXX: Investigate this */
+#if 0
+ llvm::UnsafeFPMath = true;
+#endif
+
+#if HAVE_LLVM < 0x0209
+ /*
+ * LLVM will generate MMX instructions for vectors <= 64 bits, leading to
+ * innefficient code, and in 32bit systems, to the corruption of the FPU
+ * stack given that it expects the user to generate the EMMS instructions.
+ *
+ * See also:
+ * - http://llvm.org/bugs/show_bug.cgi?id=3287
+ * - http://l4.me.uk/post/2009/06/07/llvm-wrinkle-3-configuration-what-configuration/
+ *
+ * The -disable-mmx global option can be specified only once since we
+ * dynamically link against LLVM it will reside in a separate shared object,
+ * which may or not be delete when this shared object is, so we use the
+ * llvm::DisablePrettyStackTrace variable (which we set below and should
+ * reside in the same shared library) to determine whether the -disable-mmx
+ * option has been set or not.
+ *
+ * Thankfully this ugly hack is not necessary on LLVM 2.9 onwards.
+ */
+ if (!llvm::DisablePrettyStackTrace) {
+ static boolean first = TRUE;
+ static const char* options[] = {
+ "prog",
+ "-disable-mmx"
+ };
+ assert(first);
+ llvm::cl::ParseCommandLineOptions(2, const_cast<char**>(options));
+ first = FALSE;
}
+#endif
+
+ /*
+ * By default LLVM adds a signal handler to output a pretty stack trace.
+ * This signal handler is never removed, causing problems when unloading the
+ * shared object where the gallium driver resides.
+ */
+ llvm::DisablePrettyStackTrace = true;
}
-/**
- * Same as LLVMDumpValue, but through our debugging channels.
- */
extern "C" void
-lp_debug_dump_value(LLVMValueRef value)
+lp_func_delete_body(LLVMValueRef FF)
{
- raw_debug_ostream os;
- llvm::unwrap(value)->print(os);
- os.flush();
+ llvm::Function *func = llvm::unwrap<llvm::Function>(FF);
+ func->deleteBody();
}
-#else
-
-
-extern "C" void
-lp_debug_dump_value(LLVMValueRef value)
+extern "C"
+LLVMValueRef
+lp_build_load_volatile(LLVMBuilderRef B, LLVMValueRef PointerVal,
+ const char *Name)
{
- LLVMDumpValue(value);
+ return llvm::wrap(llvm::unwrap(B)->CreateLoad(llvm::unwrap(PointerVal), true, Name));
}
-
-#endif
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