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implement vector negation

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also fix vector behavior tests, they weren't actually testing
runtime vectors, but now they are.

See #903
This commit is contained in:
Andrew Kelley
2019-02-22 13:28:57 -05:00
parent 2fe8a0831f
commit 52bb71867d
5 changed files with 157 additions and 47 deletions
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11
src/codegen.cpp
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@@ -3229,7 +3229,8 @@ static LLVMValueRef ir_render_br(CodeGen *g, IrExecutable *executable, IrInstruc
static LLVMValueRef ir_render_un_op(CodeGen *g, IrExecutable *executable, IrInstructionUnOp *un_op_instruction) {
IrUnOp op_id = un_op_instruction->op_id;
LLVMValueRef expr = ir_llvm_value(g, un_op_instruction->value);
ZigType *expr_type = un_op_instruction->value->value.type;
ZigType *operand_type = un_op_instruction->value->value.type;
ZigType *scalar_type = (operand_type->id == ZigTypeIdVector) ? operand_type->data.vector.elem_type : operand_type;
switch (op_id) {
case IrUnOpInvalid:
@@ -3239,16 +3240,16 @@ static LLVMValueRef ir_render_un_op(CodeGen *g, IrExecutable *executable, IrInst
case IrUnOpNegation:
case IrUnOpNegationWrap:
{
if (expr_type->id == ZigTypeIdFloat) {
if (scalar_type->id == ZigTypeIdFloat) {
ZigLLVMSetFastMath(g->builder, ir_want_fast_math(g, &un_op_instruction->base));
return LLVMBuildFNeg(g->builder, expr, "");
} else if (expr_type->id == ZigTypeIdInt) {
} else if (scalar_type->id == ZigTypeIdInt) {
if (op_id == IrUnOpNegationWrap) {
return LLVMBuildNeg(g->builder, expr, "");
} else if (ir_want_runtime_safety(g, &un_op_instruction->base)) {
LLVMValueRef zero = LLVMConstNull(LLVMTypeOf(expr));
return gen_overflow_op(g, expr_type, AddSubMulSub, zero, expr);
} else if (expr_type->data.integral.is_signed) {
return gen_overflow_op(g, operand_type, AddSubMulSub, zero, expr);
} else if (scalar_type->data.integral.is_signed) {
return LLVMBuildNSWNeg(g->builder, expr, "");
} else {
return LLVMBuildNUWNeg(g->builder, expr, "");