amd: remove support for LLVM 3.9

Only these are supported:
- LLVM 4.0
- LLVM 5.0
- LLVM 6.0
- master (7.0)

Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

12 files changed, 75 insertions, 242 deletions

diff --git a/configure.ac b/configure.ac
index a54b7cb6650..8ed606c7694 100644
--- a/configure.ac
+++ b/configure.ac
@@ -103,8 +103,8 @@ dnl LLVM versions
 LLVM_REQUIRED_GALLIUM=3.3.0
 LLVM_REQUIRED_OPENCL=3.9.0
 LLVM_REQUIRED_R600=3.9.0
-LLVM_REQUIRED_RADEONSI=3.9.0
-LLVM_REQUIRED_RADV=3.9.0
+LLVM_REQUIRED_RADEONSI=4.0.0
+LLVM_REQUIRED_RADV=4.0.0
 LLVM_REQUIRED_SWR=3.9.0
 
 dnl Check for progs
diff --git a/meson.build b/meson.build
index cb3b6587b4d..a806aefa07f 100644
--- a/meson.build
+++ b/meson.build
@@ -992,9 +992,9 @@ if with_gallium_opencl
   # TODO: optional modules
 endif
 
-if with_amd_vk
+if with_amd_vk or with_gallium_radeonsi
   _llvm_version = '>= 4.0.0'
-elif with_gallium_opencl or with_gallium_swr or with_gallium_r600 or with_gallium_radeonsi
+elif with_gallium_opencl or with_gallium_swr or with_gallium_r600
   _llvm_version = '>= 3.9.0'
 else
   _llvm_version = '>= 3.3.0'
@@ -1031,7 +1031,7 @@ if with_llvm
     '-DMESA_LLVM_VERSION_PATCH=@0@'.format(_llvm_patch),
   ]
 elif with_amd_vk or with_gallium_radeonsi or with_gallium_swr
-  error('The following drivers requires LLVM: Radv, RadeonSI, SWR. One of these is enabled, but LLVM is disabled.')
+  error('The following drivers require LLVM: Radv, RadeonSI, SWR. One of these is enabled, but LLVM is disabled.')
 endif
 
 dep_glvnd = []
diff --git a/src/amd/common/ac_llvm_build.c b/src/amd/common/ac_llvm_build.c
index 6ede60afe71..3efcaa12b18 100644
--- a/src/amd/common/ac_llvm_build.c
+++ b/src/amd/common/ac_llvm_build.c
@@ -220,8 +220,7 @@ ac_build_intrinsic(struct ac_llvm_context *ctx, const char *name,
 		   unsigned param_count, unsigned attrib_mask)
 {
 	LLVMValueRef function, call;
-	bool set_callsite_attrs = HAVE_LLVM >= 0x0400 &&
-				  !(attrib_mask & AC_FUNC_ATTR_LEGACY);
+	bool set_callsite_attrs = !(attrib_mask & AC_FUNC_ATTR_LEGACY);
 
 	function = LLVMGetNamedFunction(ctx->module, name);
 	if (!function) {
@@ -721,20 +720,6 @@ ac_build_fs_interp(struct ac_llvm_context *ctx,
 {
 	LLVMValueRef args[5];
 	LLVMValueRef p1;
-	
-	if (HAVE_LLVM < 0x0400) {
-		LLVMValueRef ij[2];
-		ij[0] = LLVMBuildBitCast(ctx->builder, i, ctx->i32, "");
-		ij[1] = LLVMBuildBitCast(ctx->builder, j, ctx->i32, "");
-
-		args[0] = llvm_chan;
-		args[1] = attr_number;
-		args[2] = params;
-		args[3] = ac_build_gather_values(ctx, ij, 2);
-		return ac_build_intrinsic(ctx, "llvm.SI.fs.interp",
-					  ctx->f32, args, 4,
-					  AC_FUNC_ATTR_READNONE);
-	}
 
 	args[0] = i;
 	args[1] = llvm_chan;
@@ -762,16 +747,6 @@ ac_build_fs_interp_mov(struct ac_llvm_context *ctx,
 		       LLVMValueRef params)
 {
 	LLVMValueRef args[4];
-	if (HAVE_LLVM < 0x0400) {
-		args[0] = llvm_chan;
-		args[1] = attr_number;
-		args[2] = params;
-
-		return ac_build_intrinsic(ctx,
-					  "llvm.SI.fs.constant",
-					  ctx->f32, args, 3,
-					  AC_FUNC_ATTR_READNONE);
-	}
 
 	args[0] = parameter;
 	args[1] = llvm_chan;
@@ -1209,10 +1184,9 @@ ac_build_sendmsg(struct ac_llvm_context *ctx,
 		 LLVMValueRef wave_id)
 {
 	LLVMValueRef args[2];
-	const char *intr_name = (HAVE_LLVM < 0x0400) ? "llvm.SI.sendmsg" : "llvm.amdgcn.s.sendmsg";
 	args[0] = LLVMConstInt(ctx->i32, msg, false);
 	args[1] = wave_id;
-	ac_build_intrinsic(ctx, intr_name, ctx->voidt, args, 2, 0);
+	ac_build_intrinsic(ctx, "llvm.amdgcn.s.sendmsg", ctx->voidt, args, 2, 0);
 }
 
 LLVMValueRef
@@ -1220,9 +1194,7 @@ ac_build_imsb(struct ac_llvm_context *ctx,
 	      LLVMValueRef arg,
 	      LLVMTypeRef dst_type)
 {
-	const char *intr_name = (HAVE_LLVM < 0x0400) ? "llvm.AMDGPU.flbit.i32" :
-						       "llvm.amdgcn.sffbh.i32";
-	LLVMValueRef msb = ac_build_intrinsic(ctx, intr_name,
+	LLVMValueRef msb = ac_build_intrinsic(ctx, "llvm.amdgcn.sffbh.i32",
 					      dst_type, &arg, 1,
 					      AC_FUNC_ATTR_READNONE);
 
@@ -1370,124 +1342,58 @@ void ac_build_export(struct ac_llvm_context *ctx, struct ac_export_args *a)
 LLVMValueRef ac_build_image_opcode(struct ac_llvm_context *ctx,
 				   struct ac_image_args *a)
 {
-	LLVMTypeRef dst_type;
 	LLVMValueRef args[11];
 	unsigned num_args = 0;
 	const char *name = NULL;
 	char intr_name[128], type[64];
 
-	if (HAVE_LLVM >= 0x0400) {
-		bool sample = a->opcode == ac_image_sample ||
-			      a->opcode == ac_image_gather4 ||
-			      a->opcode == ac_image_get_lod;
-
-		if (sample)
-			args[num_args++] = ac_to_float(ctx, a->addr);
-		else
-			args[num_args++] = a->addr;
-
-		args[num_args++] = a->resource;
-		if (sample)
-			args[num_args++] = a->sampler;
-		args[num_args++] = LLVMConstInt(ctx->i32, a->dmask, 0);
-		if (sample)
-			args[num_args++] = LLVMConstInt(ctx->i1, a->unorm, 0);
-		args[num_args++] = ctx->i1false; /* glc */
-		args[num_args++] = ctx->i1false; /* slc */
-		args[num_args++] = ctx->i1false; /* lwe */
-		args[num_args++] = LLVMConstInt(ctx->i1, a->da, 0);
-
-		switch (a->opcode) {
-		case ac_image_sample:
-			name = "llvm.amdgcn.image.sample";
-			break;
-		case ac_image_gather4:
-			name = "llvm.amdgcn.image.gather4";
-			break;
-		case ac_image_load:
-			name = "llvm.amdgcn.image.load";
-			break;
-		case ac_image_load_mip:
-			name = "llvm.amdgcn.image.load.mip";
-			break;
-		case ac_image_get_lod:
-			name = "llvm.amdgcn.image.getlod";
-			break;
-		case ac_image_get_resinfo:
-			name = "llvm.amdgcn.image.getresinfo";
-			break;
-		default:
-			unreachable("invalid image opcode");
-		}
+	bool sample = a->opcode == ac_image_sample ||
+		      a->opcode == ac_image_gather4 ||
+		      a->opcode == ac_image_get_lod;
 
-		ac_build_type_name_for_intr(LLVMTypeOf(args[0]), type,
-					    sizeof(type));
-
-		snprintf(intr_name, sizeof(intr_name), "%s%s%s%s.v4f32.%s.v8i32",
-			name,
-			a->compare ? ".c" : "",
-			a->bias ? ".b" :
-			a->lod ? ".l" :
-			a->deriv ? ".d" :
-			a->level_zero ? ".lz" : "",
-			a->offset ? ".o" : "",
-			type);
-
-		LLVMValueRef result =
-			ac_build_intrinsic(ctx, intr_name,
-					   ctx->v4f32, args, num_args,
-					   AC_FUNC_ATTR_READNONE);
-		if (!sample) {
-			result = LLVMBuildBitCast(ctx->builder, result,
-						  ctx->v4i32, "");
-		}
-		return result;
-	}
+	if (sample)
+		args[num_args++] = ac_to_float(ctx, a->addr);
+	else
+		args[num_args++] = a->addr;
 
-	args[num_args++] = a->addr;
 	args[num_args++] = a->resource;
-
-	if (a->opcode == ac_image_load ||
-	    a->opcode == ac_image_load_mip ||
-	    a->opcode == ac_image_get_resinfo) {
-		dst_type = ctx->v4i32;
-	} else {
-		dst_type = ctx->v4f32;
+	if (sample)
 		args[num_args++] = a->sampler;
-	}
-
 	args[num_args++] = LLVMConstInt(ctx->i32, a->dmask, 0);
-	args[num_args++] = LLVMConstInt(ctx->i32, a->unorm, 0);
-	args[num_args++] = LLVMConstInt(ctx->i32, 0, 0); /* r128 */
-	args[num_args++] = LLVMConstInt(ctx->i32, a->da, 0);
-	args[num_args++] = LLVMConstInt(ctx->i32, 0, 0); /* glc */
-	args[num_args++] = LLVMConstInt(ctx->i32, 0, 0); /* slc */
-	args[num_args++] = LLVMConstInt(ctx->i32, 0, 0); /* tfe */
-	args[num_args++] = LLVMConstInt(ctx->i32, 0, 0); /* lwe */
+	if (sample)
+		args[num_args++] = LLVMConstInt(ctx->i1, a->unorm, 0);
+	args[num_args++] = ctx->i1false; /* glc */
+	args[num_args++] = ctx->i1false; /* slc */
+	args[num_args++] = ctx->i1false; /* lwe */
+	args[num_args++] = LLVMConstInt(ctx->i1, a->da, 0);
 
 	switch (a->opcode) {
 	case ac_image_sample:
-		name = "llvm.SI.image.sample";
+		name = "llvm.amdgcn.image.sample";
 		break;
 	case ac_image_gather4:
-		name = "llvm.SI.gather4";
+		name = "llvm.amdgcn.image.gather4";
 		break;
 	case ac_image_load:
-		name = "llvm.SI.image.load";
+		name = "llvm.amdgcn.image.load";
 		break;
 	case ac_image_load_mip:
-		name = "llvm.SI.image.load.mip";
+		name = "llvm.amdgcn.image.load.mip";
 		break;
 	case ac_image_get_lod:
-		name = "llvm.SI.getlod";
+		name = "llvm.amdgcn.image.getlod";
 		break;
 	case ac_image_get_resinfo:
-		name = "llvm.SI.getresinfo";
+		name = "llvm.amdgcn.image.getresinfo";
 		break;
+	default:
+		unreachable("invalid image opcode");
 	}
 
-	ac_build_type_name_for_intr(LLVMTypeOf(a->addr), type, sizeof(type));
-	snprintf(intr_name, sizeof(intr_name), "%s%s%s%s.%s",
+	ac_build_type_name_for_intr(LLVMTypeOf(args[0]), type,
+				    sizeof(type));
+
+	snprintf(intr_name, sizeof(intr_name), "%s%s%s%s.v4f32.%s.v8i32",
 		name,
 		a->compare ? ".c" : "",
 		a->bias ? ".b" :
@@ -1497,10 +1403,15 @@ LLVMValueRef ac_build_image_opcode(struct ac_llvm_context *ctx,
 		a->offset ? ".o" : "",
 		type);
 
-	return ac_build_intrinsic(ctx, intr_name,
-				  dst_type, args, num_args,
-				  AC_FUNC_ATTR_READNONE |
-				  AC_FUNC_ATTR_LEGACY);
+	LLVMValueRef result =
+		ac_build_intrinsic(ctx, intr_name,
+				   ctx->v4f32, args, num_args,
+				   AC_FUNC_ATTR_READNONE);
+	if (!sample) {
+		result = LLVMBuildBitCast(ctx->builder, result,
+					  ctx->v4i32, "");
+	}
+	return result;
 }
 
 LLVMValueRef ac_build_cvt_pkrtz_f16(struct ac_llvm_context *ctx,
@@ -1738,19 +1649,15 @@ void ac_get_image_intr_name(const char *base_name,
         ac_build_type_name_for_intr(coords_type, coords_type_name,
                             sizeof(coords_type_name));
 
-        if (HAVE_LLVM <= 0x0309) {
-                snprintf(out_name, out_len, "%s.%s", base_name, coords_type_name);
-        } else {
-                char data_type_name[8];
-                char rsrc_type_name[8];
-
-                ac_build_type_name_for_intr(data_type, data_type_name,
-                                        sizeof(data_type_name));
-                ac_build_type_name_for_intr(rsrc_type, rsrc_type_name,
-                                        sizeof(rsrc_type_name));
-                snprintf(out_name, out_len, "%s.%s.%s.%s", base_name,
-                         data_type_name, coords_type_name, rsrc_type_name);
-        }
+	char data_type_name[8];
+	char rsrc_type_name[8];
+
+	ac_build_type_name_for_intr(data_type, data_type_name,
+				    sizeof(data_type_name));
+	ac_build_type_name_for_intr(rsrc_type, rsrc_type_name,
+				    sizeof(rsrc_type_name));
+	snprintf(out_name, out_len, "%s.%s.%s.%s", base_name,
+		 data_type_name, coords_type_name, rsrc_type_name);
 }
 
 #define AC_EXP_TARGET (HAVE_LLVM >= 0x0500 ? 0 : 3)
diff --git a/src/amd/common/ac_llvm_helper.cpp b/src/amd/common/ac_llvm_helper.cpp
index 793737c395c..1d2369baa73 100644
--- a/src/amd/common/ac_llvm_helper.cpp
+++ b/src/amd/common/ac_llvm_helper.cpp
@@ -65,20 +65,12 @@ bool ac_is_sgpr_param(LLVMValueRef arg)
 
 LLVMValueRef ac_llvm_get_called_value(LLVMValueRef call)
 {
-#if HAVE_LLVM >= 0x0309
 	return LLVMGetCalledValue(call);
-#else
-	return llvm::wrap(llvm::CallSite(llvm::unwrap<llvm::Instruction>(call)).getCalledValue());
-#endif
 }
 
 bool ac_llvm_is_function(LLVMValueRef v)
 {
-#if HAVE_LLVM >= 0x0309
 	return LLVMGetValueKind(v) == LLVMFunctionValueKind;
-#else
-	return llvm::isa<llvm::Function>(llvm::unwrap(v));
-#endif
 }
 
 LLVMBuilderRef ac_create_builder(LLVMContextRef ctx,
@@ -86,7 +78,6 @@ LLVMBuilderRef ac_create_builder(LLVMContextRef ctx,
 {
 	LLVMBuilderRef builder = LLVMCreateBuilderInContext(ctx);
 
-#if HAVE_LLVM >= 0x0308
 	llvm::FastMathFlags flags;
 
 	switch (float_mode) {
@@ -105,7 +96,6 @@ LLVMBuilderRef ac_create_builder(LLVMContextRef ctx,
 		llvm::unwrap(builder)->setFastMathFlags(flags);
 		break;
 	}
-#endif
 
 	return builder;
 }
diff --git a/src/amd/common/ac_llvm_util.c b/src/amd/common/ac_llvm_util.c
index 5fd785ad24a..b88c4e4979f 100644
--- a/src/amd/common/ac_llvm_util.c
+++ b/src/amd/common/ac_llvm_util.c
@@ -46,12 +46,11 @@ static void ac_init_llvm_target()
 	/* Workaround for bug in llvm 4.0 that causes image intrinsics
 	 * to disappear.
 	 * https://reviews.llvm.org/D26348
+	 *
+	 * "mesa" is the prefix for error messages.
 	 */
-	if (HAVE_LLVM >= 0x0400) {
-		/* "mesa" is the prefix for error messages */
-		const char *argv[2] = { "mesa", "-simplifycfg-sink-common=false" };
-		LLVMParseCommandLineOptions(2, argv, NULL);
-	}
+	const char *argv[2] = { "mesa", "-simplifycfg-sink-common=false" };
+	LLVMParseCommandLineOptions(2, argv, NULL);
 }
 
 static once_flag ac_init_llvm_target_once_flag = ONCE_FLAG_INIT;
@@ -146,25 +145,6 @@ LLVMTargetMachineRef ac_create_target_machine(enum radeon_family family, enum ac
 	return tm;
 }
 
-
-#if HAVE_LLVM < 0x0400
-static LLVMAttribute ac_attr_to_llvm_attr(enum ac_func_attr attr)
-{
-   switch (attr) {
-   case AC_FUNC_ATTR_ALWAYSINLINE: return LLVMAlwaysInlineAttribute;
-   case AC_FUNC_ATTR_INREG: return LLVMInRegAttribute;
-   case AC_FUNC_ATTR_NOALIAS: return LLVMNoAliasAttribute;
-   case AC_FUNC_ATTR_NOUNWIND: return LLVMNoUnwindAttribute;
-   case AC_FUNC_ATTR_READNONE: return LLVMReadNoneAttribute;
-   case AC_FUNC_ATTR_READONLY: return LLVMReadOnlyAttribute;
-   default:
-	   fprintf(stderr, "Unhandled function attribute: %x\n", attr);
-	   return 0;
-   }
-}
-
-#else
-
 static const char *attr_to_str(enum ac_func_attr attr)
 {
    switch (attr) {
@@ -183,20 +163,10 @@ static const char *attr_to_str(enum ac_func_attr attr)
    }
 }
 
-#endif
-
 void
 ac_add_function_attr(LLVMContextRef ctx, LLVMValueRef function,
                      int attr_idx, enum ac_func_attr attr)
 {
-#if HAVE_LLVM < 0x0400
-   LLVMAttribute llvm_attr = ac_attr_to_llvm_attr(attr);
-   if (attr_idx == -1) {
-      LLVMAddFunctionAttr(function, llvm_attr);
-   } else {
-      LLVMAddAttribute(LLVMGetParam(function, attr_idx - 1), llvm_attr);
-   }
-#else
    const char *attr_name = attr_to_str(attr);
    unsigned kind_id = LLVMGetEnumAttributeKindForName(attr_name,
                                                       strlen(attr_name));
@@ -206,7 +176,6 @@ ac_add_function_attr(LLVMContextRef ctx, LLVMValueRef function,
       LLVMAddAttributeAtIndex(function, attr_idx, llvm_attr);
    else
       LLVMAddCallSiteAttribute(function, attr_idx, llvm_attr);
-#endif
 }
 
 void ac_add_func_attributes(LLVMContextRef ctx, LLVMValueRef function,
diff --git a/src/amd/common/ac_llvm_util.h b/src/amd/common/ac_llvm_util.h
index 29dc0c1c7d1..3cf385a33ed 100644
--- a/src/amd/common/ac_llvm_util.h
+++ b/src/amd/common/ac_llvm_util.h
@@ -42,9 +42,9 @@ enum ac_func_attr {
 	AC_FUNC_ATTR_NOUNWIND     = (1 << 4),
 	AC_FUNC_ATTR_READNONE     = (1 << 5),
 	AC_FUNC_ATTR_READONLY     = (1 << 6),
-	AC_FUNC_ATTR_WRITEONLY    = HAVE_LLVM >= 0x0400 ? (1 << 7) : 0,
-	AC_FUNC_ATTR_INACCESSIBLE_MEM_ONLY = HAVE_LLVM >= 0x0400 ? (1 << 8) : 0,
-	AC_FUNC_ATTR_CONVERGENT = HAVE_LLVM >= 0x0400 ? (1 << 9) : 0,
+	AC_FUNC_ATTR_WRITEONLY    = (1 << 7),
+	AC_FUNC_ATTR_INACCESSIBLE_MEM_ONLY = (1 << 8),
+	AC_FUNC_ATTR_CONVERGENT = (1 << 9),
 
 	/* Legacy intrinsic that needs attributes on function declarations
 	 * and they must match the internal LLVM definition exactly, otherwise
@@ -94,16 +94,14 @@ ac_get_load_intr_attribs(bool can_speculate)
 {
 	/* READNONE means writes can't affect it, while READONLY means that
 	 * writes can affect it. */
-	return can_speculate && HAVE_LLVM >= 0x0400 ?
-				 AC_FUNC_ATTR_READNONE :
-				 AC_FUNC_ATTR_READONLY;
+	return can_speculate ? AC_FUNC_ATTR_READNONE :
+			       AC_FUNC_ATTR_READONLY;
 }
 
 static inline unsigned
 ac_get_store_intr_attribs(bool writeonly_memory)
 {
-	return writeonly_memory && HAVE_LLVM >= 0x0400 ?
-				  AC_FUNC_ATTR_INACCESSIBLE_MEM_ONLY :
+	return writeonly_memory ? AC_FUNC_ATTR_INACCESSIBLE_MEM_ONLY :
 				  AC_FUNC_ATTR_WRITEONLY;
 }
 
diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index 0f7d6258acd..cfcd2179094 100644
--- a/src/amd/common/ac_nir_to_llvm.c
+++ b/src/amd/common/ac_nir_to_llvm.c
@@ -3635,18 +3635,10 @@ static LLVMValueRef visit_image_load(struct ac_nir_context *ctx,
 		params[0] = get_image_coords(ctx, instr);
 		params[1] = get_sampler_desc(ctx, instr->variables[0], AC_DESC_IMAGE, NULL, true, false);
 		params[2] = LLVMConstInt(ctx->ac.i32, 15, false); /* dmask */
-		if (HAVE_LLVM <= 0x0309) {
-			params[3] = ctx->ac.i1false;  /* r128 */
-			params[4] = da;
-			params[5] = glc;
-			params[6] = slc;
-		} else {
-			LLVMValueRef lwe = ctx->ac.i1false;
-			params[3] = glc;
-			params[4] = slc;
-			params[5] = lwe;
-			params[6] = da;
-		}
+		params[3] = glc;
+		params[4] = slc;
+		params[5] = ctx->ac.i1false;
+		params[6] = da;
 
 		ac_get_image_intr_name("llvm.amdgcn.image.load",
 				       ctx->ac.v4f32, /* vdata */
@@ -3694,18 +3686,10 @@ static void visit_image_store(struct ac_nir_context *ctx,
 		params[1] = get_image_coords(ctx, instr); /* coords */
 		params[2] = get_sampler_desc(ctx, instr->variables[0], AC_DESC_IMAGE, NULL, true, true);
 		params[3] = LLVMConstInt(ctx->ac.i32, 15, false); /* dmask */
-		if (HAVE_LLVM <= 0x0309) {
-			params[4] = ctx->ac.i1false;  /* r128 */
-			params[5] = da;
-			params[6] = glc;
-			params[7] = slc;
-		} else {
-			LLVMValueRef lwe = ctx->ac.i1false;
-			params[4] = glc;
-			params[5] = slc;
-			params[6] = lwe;
-			params[7] = da;
-		}
+		params[4] = glc;
+		params[5] = slc;
+		params[6] = ctx->ac.i1false;
+		params[7] = da;
 
 		ac_get_image_intr_name("llvm.amdgcn.image.store",
 				       LLVMTypeOf(params[0]), /* vdata */
diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
index aea723cfbcd..9fda419d584 100644
--- a/src/amd/vulkan/radv_device.c
+++ b/src/amd/vulkan/radv_device.c
@@ -1113,11 +1113,7 @@ VkResult radv_CreateDevice(
 	device->always_use_syncobj = device->physical_device->rad_info.has_syncobj_wait_for_submit;
 #endif
 
-#if HAVE_LLVM < 0x0400
-	device->llvm_supports_spill = false;
-#else
 	device->llvm_supports_spill = true;
-#endif
 
 	/* The maximum number of scratch waves. Scratch space isn't divided
 	 * evenly between CUs. The number is only a function of the number of CUs.
diff --git a/src/gallium/drivers/radeonsi/si_compute.c b/src/gallium/drivers/radeonsi/si_compute.c
index ac4fab3ea07..91d6810a916 100644
--- a/src/gallium/drivers/radeonsi/si_compute.c
+++ b/src/gallium/drivers/radeonsi/si_compute.c
@@ -159,8 +159,7 @@ static void *si_create_compute_state(
 	program->local_size = cso->req_local_mem;
 	program->private_size = cso->req_private_mem;
 	program->input_size = cso->req_input_mem;
-	program->use_code_object_v2 = HAVE_LLVM >= 0x0400 &&
-					cso->ir_type == PIPE_SHADER_IR_NATIVE;
+	program->use_code_object_v2 = cso->ir_type == PIPE_SHADER_IR_NATIVE;
 
 	if (cso->ir_type == PIPE_SHADER_IR_TGSI) {
 		program->tokens = tgsi_dup_tokens(cso->prog);
diff --git a/src/gallium/drivers/radeonsi/si_get.c b/src/gallium/drivers/radeonsi/si_get.c
index 458b90fbe09..1346534bed7 100644
--- a/src/gallium/drivers/radeonsi/si_get.c
+++ b/src/gallium/drivers/radeonsi/si_get.c
@@ -188,10 +188,8 @@ static int si_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
 	case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
 	case PIPE_CAP_TGSI_ANY_REG_AS_ADDRESS:
 	case PIPE_CAP_SIGNED_VERTEX_BUFFER_OFFSET:
-		return 1;
-
 	case PIPE_CAP_TGSI_VOTE:
-		return HAVE_LLVM >= 0x0400;
+		return 1;
 
 	case PIPE_CAP_TGSI_BALLOT:
 		return HAVE_LLVM >= 0x0500;
@@ -744,14 +742,9 @@ static int si_get_compute_param(struct pipe_screen *screen,
 	//TODO: select these params by asic
 	switch (param) {
 	case PIPE_COMPUTE_CAP_IR_TARGET: {
-		const char *gpu;
-		const char *triple;
-
-		if (HAVE_LLVM < 0x0400)
-			triple = "amdgcn--";
-		else
-			triple = "amdgcn-mesa-mesa3d";
+		const char *gpu, *triple;
 
+		triple = "amdgcn-mesa-mesa3d";
 		gpu = ac_get_llvm_processor_name(sscreen->info.family);
 		if (ret) {
 			sprintf(ret, "%s-%s", gpu, triple);
diff --git a/src/gallium/drivers/radeonsi/si_shader_tgsi_mem.c b/src/gallium/drivers/radeonsi/si_shader_tgsi_mem.c
index 84d483abe29..3dd151bca82 100644
--- a/src/gallium/drivers/radeonsi/si_shader_tgsi_mem.c
+++ b/src/gallium/drivers/radeonsi/si_shader_tgsi_mem.c
@@ -296,7 +296,7 @@ static void image_append_args(
 	LLVMValueRef slc = i1false;
 	LLVMValueRef lwe = i1false;
 
-	if (atomic || (HAVE_LLVM <= 0x0309)) {
+	if (atomic) {
 		emit_data->args[emit_data->arg_count++] = r128;
 		emit_data->args[emit_data->arg_count++] = da;
 		if (!atomic) {
@@ -306,7 +306,6 @@ static void image_append_args(
 		return;
 	}
 
-	/* HAVE_LLVM >= 0x0400 */
 	emit_data->args[emit_data->arg_count++] = glc;
 	emit_data->args[emit_data->arg_count++] = slc;
 	emit_data->args[emit_data->arg_count++] = lwe;
diff --git a/src/gallium/drivers/radeonsi/si_shader_tgsi_setup.c b/src/gallium/drivers/radeonsi/si_shader_tgsi_setup.c
index f70e2bdde87..44294f28d16 100644
--- a/src/gallium/drivers/radeonsi/si_shader_tgsi_setup.c
+++ b/src/gallium/drivers/radeonsi/si_shader_tgsi_setup.c
@@ -1378,10 +1378,8 @@ void si_llvm_optimize_module(struct si_shader_context *ctx)
 	LLVMAddLICMPass(gallivm->passmgr);
 	LLVMAddAggressiveDCEPass(gallivm->passmgr);
 	LLVMAddCFGSimplificationPass(gallivm->passmgr);
-#if HAVE_LLVM >= 0x0400
 	/* This is recommended by the instruction combining pass. */
 	LLVMAddEarlyCSEMemSSAPass(gallivm->passmgr);
-#endif
 	LLVMAddInstructionCombiningPass(gallivm->passmgr);
 
 	/* Run the pass */