radeon/llvm: Add TargetLibraryInfo to the pass manager

This will prevent optimization passes from introducing unsupported
library calls.

Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

diff --git a/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c b/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c
index 73bc84988c4760960156f61ca2d3896648c33bd0..076d70ebc0bbb395ada46cf0507de0b1815a680e 100644 (file)
--- a/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c
+++ b/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c
@@ -30,6 +30,7 @@
 #include "gallivm/lp_bld_flow.h"
 #include "gallivm/lp_bld_init.h"
 #include "gallivm/lp_bld_intr.h"
+#include "gallivm/lp_bld_misc.h"
 #include "gallivm/lp_bld_swizzle.h"
 #include "tgsi/tgsi_info.h"
 #include "tgsi/tgsi_parse.h"
@@ -1717,11 +1718,16 @@ void radeon_llvm_create_func(struct radeon_llvm_context * ctx,
 void radeon_llvm_finalize_module(struct radeon_llvm_context * ctx)
 {
        struct gallivm_state * gallivm = ctx->soa.bld_base.base.gallivm;
+       const char *triple = LLVMGetTarget(gallivm->module);
+       LLVMTargetLibraryInfoRef target_library_info;
 
        /* Create the pass manager */
        gallivm->passmgr = LLVMCreateFunctionPassManagerForModule(
                                                        gallivm->module);
 
+       target_library_info = gallivm_create_target_library_info(triple);
+       LLVMAddTargetLibraryInfo(target_library_info, gallivm->passmgr);
+
        /* This pass should eliminate all the load and store instructions */
        LLVMAddPromoteMemoryToRegisterPass(gallivm->passmgr);
 
@@ -1737,7 +1743,7 @@ void radeon_llvm_finalize_module(struct radeon_llvm_context * ctx)
 
        LLVMDisposeBuilder(gallivm->builder);
        LLVMDisposePassManager(gallivm->passmgr);
-
+       gallivm_dispose_target_library_info(target_library_info);
 }
 
 void radeon_llvm_dispose(struct radeon_llvm_context * ctx)