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codegen: fix negation for floats

master
Andrew Kelley 2016-01-31 21:32:05 -07:00
parent a4e19f94f1
commit 675de74412
1 changed files with 11 additions and 4 deletions
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15
src/codegen.cpp
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@ -928,6 +928,7 @@ static LLVMValueRef gen_prefix_op_expr(CodeGen *g, AstNode *node) {
assert(node->data.prefix_op_expr.primary_expr);
AstNode *expr_node = node->data.prefix_op_expr.primary_expr;
TypeTableEntry *expr_type = get_expr_type(expr_node);
switch (node->data.prefix_op_expr.prefix_op) {
case PrefixOpInvalid:
@ -935,8 +936,15 @@ static LLVMValueRef gen_prefix_op_expr(CodeGen *g, AstNode *node) {
case PrefixOpNegation:
{
LLVMValueRef expr = gen_expr(g, expr_node);
add_debug_source_node(g, node);
return LLVMBuildNeg(g->builder, expr, "");
if (expr_type->id == TypeTableEntryIdInt) {
add_debug_source_node(g, node);
return LLVMBuildNeg(g->builder, expr, "");
} else if (expr_type->id == TypeTableEntryIdFloat) {
add_debug_source_node(g, node);
return LLVMBuildFNeg(g->builder, expr, "");
} else {
zig_unreachable();
}
}
case PrefixOpBoolNot:
{
@ -961,8 +969,7 @@ static LLVMValueRef gen_prefix_op_expr(CodeGen *g, AstNode *node) {
case PrefixOpDereference:
{
LLVMValueRef expr = gen_expr(g, expr_node);
TypeTableEntry *type_entry = get_expr_type(expr_node);
if (type_entry->size_in_bits == 0) {
if (expr_type->size_in_bits == 0) {
return nullptr;
} else {
add_debug_source_node(g, node);