added floats to skullc

dosisod · Aug 14, 2020 · 038d3bd · 038d3bd
1 parent 31b8bcf
commit 038d3bd
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Showing 2 changed files with 23 additions and 0 deletions.
diff --git a/skullc/llvm/aliases.h b/skullc/llvm/aliases.h
@@ -19,3 +19,8 @@
 		true \
 	)
 
+#define LLVM_FLOAT(ctx, str) \
+	LLVMConstRealOfString( \
+		LLVMFP128TypeInContext(ctx), \
+		str \
+	)
diff --git a/skullc/llvm/var.c b/skullc/llvm/var.c
@@ -32,6 +32,24 @@ void var_to_llvm_ir(variable_t *var, LLVMBuilderRef builder, LLVMContextRef ctx)
 			ir_var
 		);
 	}
+	if (var->type == &TYPE_FLOAT) {
+		LLVMValueRef ir_var = LLVMBuildAlloca(
+			builder,
+			LLVMFP128TypeInContext(ctx),
+			var_name
+		);
+
+		// suboptimal way of converting 64bit floats to llvm
+		char32_t *tmp = var->type->to_string(var);
+		char *var_as_str = c32stombs(tmp);
+		free(tmp);
+
+		LLVMBuildStore(
+			builder,
+			LLVM_FLOAT(ctx, var_as_str),
+			ir_var
+		);
+	}
 	else if (var->type == &TYPE_BOOL) {
 		LLVMValueRef ir_var = LLVMBuildAlloca(
 			builder,