[Mesa-dev] [PATCH 1/3] gallivm: Improve debug output

[Ben Crocker]

Improve debug output from gallivm_compile_module and
lp_build_create_jit_compiler_for_module, printing the
-mcpu and -mattr options passed to LLC.

Signed-off-by: Ben Crocker <bcrocker at redhat.com>
Cc: 12.0 13.0 17.0 <mesa-stable at lists.freedesktop.org>
---
 src/gallium/auxiliary/gallivm/lp_bld_init.c   | 5 ++++-
 src/gallium/auxiliary/gallivm/lp_bld_misc.cpp | 9 +++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/gallium/auxiliary/gallivm/lp_bld_init.c b/src/gallium/auxiliary/gallivm/lp_bld_init.c
index d1b2369..fed43e9 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_init.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_init.c
@@ -606,7 +606,10 @@ gallivm_compile_module(struct gallivm_state *gallivm)
       util_snprintf(filename, sizeof(filename), "ir_%s.bc", gallivm->module_name);
       LLVMWriteBitcodeToFile(gallivm->module, filename);
       debug_printf("%s written\n", filename);
-      debug_printf("Invoke as \"llc -o - %s\"\n", filename);
+      debug_printf("Invoke as \"llc %s%s -o - %s\"\n",
+                   (HAVE_LLVM >= 0x0305) ? "[-mcpu=<-mcpu option] " : "",
+                   "[-mattr=<-mattr option(s)>]",
+                   filename);
    }
 
    if (USE_MCJIT) {
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp b/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp
index 21d9e15..f7b31ee 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp
+++ b/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp
@@ -627,6 +627,14 @@ lp_build_create_jit_compiler_for_module(LLVMExecutionEngineRef *OutJIT,
 
    builder.setMAttrs(MAttrs);
 
+   int n = MAttrs.size();
+   if (n > 0) {
+      debug_printf("llc -mattr option(s): ");
+      for (int i = 0; i < n; i++)
+         debug_printf("%s%s", MAttrs[i].c_str(), (i < n - 1) ? "," : "");
+      debug_printf("\n");
+   }
+
 #if HAVE_LLVM >= 0x0305
    StringRef MCPU = llvm::sys::getHostCPUName();
    /*
@@ -642,6 +650,7 @@ lp_build_create_jit_compiler_for_module(LLVMExecutionEngineRef *OutJIT,
     * can't handle. Not entirely sure if we really need to do anything yet.
     */
    builder.setMCPU(MCPU);
+   debug_printf("llc -mcpu option: %s\n", MCPU.str().c_str());
 #endif
 
    ShaderMemoryManager *MM = NULL;
-- 
2.7.4