5 files changed, 16 insertions, 3 deletions
diff --git a/src/amd/common/ac_llvm_util.c b/src/amd/common/ac_llvm_util.c
index 69446863b95..6063411310b 100644
--- a/src/amd/common/ac_llvm_util.c
+++ b/src/amd/common/ac_llvm_util.c
@@ -151,13 +151,14 @@ static LLVMTargetMachineRef ac_create_target_machine(enum radeon_family family,
 	LLVMTargetRef target = ac_get_llvm_target(triple);
 
 	snprintf(features, sizeof(features),
-		 "+DumpCode,-fp32-denormals,+fp64-denormals%s%s%s%s%s",
+		 "+DumpCode,-fp32-denormals,+fp64-denormals%s%s%s%s%s%s",
 		 HAVE_LLVM >= 0x0800 ? "" : ",+vgpr-spilling",
 		 tm_options & AC_TM_SISCHED ? ",+si-scheduler" : "",
 		 tm_options & AC_TM_FORCE_ENABLE_XNACK ? ",+xnack" : "",
 		 tm_options & AC_TM_FORCE_DISABLE_XNACK ? ",-xnack" : "",
-		 tm_options & AC_TM_PROMOTE_ALLOCA_TO_SCRATCH ? ",-promote-alloca" : "");
-	
+		 tm_options & AC_TM_PROMOTE_ALLOCA_TO_SCRATCH ? ",-promote-alloca" : "",
+		 tm_options & AC_TM_NO_LOAD_STORE_OPT ? ",-load-store-opt" : "");
+
 	LLVMTargetMachineRef tm = LLVMCreateTargetMachine(
 	                             target,
 	                             triple,
diff --git a/src/amd/common/ac_llvm_util.h b/src/amd/common/ac_llvm_util.h
index 6d961c06f8a..ca00540da80 100644
--- a/src/amd/common/ac_llvm_util.h
+++ b/src/amd/common/ac_llvm_util.h
@@ -65,6 +65,7 @@ enum ac_target_machine_options {
 	AC_TM_CHECK_IR = (1 << 5),
 	AC_TM_ENABLE_GLOBAL_ISEL = (1 << 6),
 	AC_TM_CREATE_LOW_OPT = (1 << 7),
+	AC_TM_NO_LOAD_STORE_OPT = (1 << 8),
 };
 
 enum ac_float_mode {
diff --git a/src/amd/vulkan/radv_debug.h b/src/amd/vulkan/radv_debug.h
index 17a2f3370c0..652a3b677d2 100644
--- a/src/amd/vulkan/radv_debug.h
+++ b/src/amd/vulkan/radv_debug.h
@@ -51,6 +51,7 @@ enum {
 	RADV_DEBUG_CHECKIR           = 0x200000,
 	RADV_DEBUG_NOTHREADLLVM      = 0x400000,
 	RADV_DEBUG_NOBINNING         = 0x800000,
+	RADV_DEBUG_NO_LOAD_STORE_OPT = 0x1000000,
 };
 
 enum {
diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
index c0e317a97e5..4203074a4cd 100644
--- a/src/amd/vulkan/radv_device.c
+++ b/src/amd/vulkan/radv_device.c
@@ -464,6 +464,7 @@ static const struct debug_control radv_debug_options[] = {
 	{"checkir", RADV_DEBUG_CHECKIR},
 	{"nothreadllvm", RADV_DEBUG_NOTHREADLLVM},
 	{"nobinning", RADV_DEBUG_NOBINNING},
+	{"noloadstoreopt", RADV_DEBUG_NO_LOAD_STORE_OPT},
 	{NULL, 0}
 };
 
@@ -510,6 +511,13 @@ radv_handle_per_app_options(struct radv_instance *instance,
 	} else if (!strcmp(name, "DOOM_VFR")) {
 		/* Work around a Doom VFR game bug */
 		instance->debug_flags |= RADV_DEBUG_NO_DYNAMIC_BOUNDS;
+	} else if (!strcmp(name, "MonsterHunterWorld.exe")) {
+		/* Workaround for a WaW hazard when LLVM moves/merges
+		 * load/store memory operations.
+		 * See https://reviews.llvm.org/D61313
+		 */
+		if (HAVE_LLVM < 0x900)
+			instance->debug_flags |= RADV_DEBUG_NO_LOAD_STORE_OPT;
 	}
 }
 
diff --git a/src/amd/vulkan/radv_shader.c b/src/amd/vulkan/radv_shader.c
index dfa50155c06..c585bac860f 100644
--- a/src/amd/vulkan/radv_shader.c
+++ b/src/amd/vulkan/radv_shader.c
@@ -649,6 +649,8 @@ shader_variant_create(struct radv_device *device,
 		tm_options |= AC_TM_SISCHED;
 	if (options->check_ir)
 		tm_options |= AC_TM_CHECK_IR;
+	if (device->instance->debug_flags & RADV_DEBUG_NO_LOAD_STORE_OPT)
+		tm_options |= AC_TM_NO_LOAD_STORE_OPT;
 
 	thread_compiler = !(device->instance->debug_flags & RADV_DEBUG_NOTHREADLLVM);
 	radv_init_llvm_once();