DBG add ac_emit_sethalt

1 files changed, 46 insertions, 0 deletions

diff --git a/src/amd/common/ac_llvm_build.c b/src/amd/common/ac_llvm_build.c
index a3afcb3586..553ee1060c 100644
--- a/src/amd/common/ac_llvm_build.c
+++ b/src/amd/common/ac_llvm_build.c
@@ -30,6 +30,7 @@
 #include "c11/threads.h"
 
 #include <assert.h>
+#include <stdarg.h>
 #include <stdio.h>
 
 #include "ac_llvm_util.h"
@@ -194,6 +195,51 @@ ac_get_type_size(LLVMTypeRef type)
 	}
 }
 
+static void ac_emit_sethalt(struct ac_llvm_context *ctx, ...)
+{
+	LLVMValueRef *values;
+	LLVMTypeRef *types;
+	va_list va;
+
+	va_start(va, ctx);
+	unsigned count = 0;
+	while (va_arg(va, void *) != NULL) {
+		va_arg(va, int);
+		count++;
+	}
+	va_end(va);
+
+	values = alloca(sizeof(*values) * count);
+	types = alloca(sizeof(*types) * count);
+	va_start(va, ctx);
+	for (unsigned i = 0; i < count; ++i) {
+		values[i] = va_arg(va, LLVMValueRef);
+
+		int vgpr = va_arg(va, int);
+		types[i] = vgpr ? ctx->f32 : ctx->i32;
+		values[i] = LLVMBuildBitCast(ctx->builder, values[i], types[i], "");
+	}
+	va_end(va);
+
+	char *registers = alloca(1 + 7 * count);
+	char *p = registers;
+	unsigned vgprs = 0;
+	unsigned sgprs = 0;
+	for (unsigned i = 0; i < count; ++i) {
+		if (i > 0)
+			*p++ = ',';
+		if (types[i] == ctx->f32)
+			p += sprintf(p, "{v%u}", vgprs++);
+		else
+			p += sprintf(p, "{s%u}", sgprs++);
+	}
+	*p = 0;
+
+	LLVMTypeRef ftype = LLVMFunctionType(ctx->voidt, types, count, false);
+	LLVMValueRef inlineasm = LLVMConstInlineAsm(ftype, "s_sethalt 1", registers, true, false);
+	LLVMBuildCall(ctx->builder, inlineasm, values, count, "");
+}
+
 static LLVMTypeRef to_integer_type_scalar(struct ac_llvm_context *ctx, LLVMTypeRef t)
 {
 	if (t == ctx->f16 || t == ctx->i16)