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fix codegen, update docs

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Vexu
2020-03-11 13:29:17 +02:00
parent 1f66435a6b
commit ec906a9771
3 changed files with 17 additions and 43 deletions
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10
src/codegen.cpp
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@@ -5229,8 +5229,8 @@ static LLVMValueRef ir_render_cmpxchg(CodeGen *g, IrExecutableGen *executable, I
// operand needs widening and truncating
ptr_val = LLVMBuildBitCast(g->builder, ptr_val,
LLVMPointerType(get_llvm_type(g, instruction->actual_type), 0), "");
cmp_val = LLVMConstZExt(cmp_val, get_llvm_type(g, instruction->actual_type));
new_val = LLVMConstZExt(new_val, get_llvm_type(g, instruction->actual_type));
cmp_val = LLVMBuildZExt(g->builder, cmp_val, get_llvm_type(g, instruction->actual_type), "");
new_val = LLVMBuildZExt(g->builder, new_val, get_llvm_type(g, instruction->actual_type), "");
}
LLVMAtomicOrdering success_order = to_LLVMAtomicOrdering(instruction->success_order);
@@ -5846,7 +5846,7 @@ static LLVMValueRef ir_render_atomic_rmw(CodeGen *g, IrExecutableGen *executable
// operand needs widening and truncating
LLVMValueRef casted_ptr = LLVMBuildBitCast(g->builder, ptr,
LLVMPointerType(get_llvm_type(g, instruction->actual_type), 0), "");
LLVMValueRef casted_operand = LLVMBuildPtrToInt(g->builder, operand, get_llvm_type(g, instruction->actual_type), "");
LLVMValueRef casted_operand = LLVMBuildZExt(g->builder, operand, get_llvm_type(g, instruction->actual_type), "");
LLVMValueRef uncasted_result = ZigLLVMBuildAtomicRMW(g->builder, op, casted_ptr, casted_operand, ordering,
g->is_single_threaded);
return LLVMBuildTrunc(g->builder, uncasted_result, get_llvm_type(g, operand_type), "");
@@ -5893,10 +5893,10 @@ static LLVMValueRef ir_render_atomic_store(CodeGen *g, IrExecutableGen *executab
LLVMValueRef value = ir_llvm_value(g, instruction->value);
if (instruction->actual_type != nullptr) {
// operand needs widening and truncating
// operand needs widening
ptr = LLVMBuildBitCast(g->builder, ptr,
LLVMPointerType(get_llvm_type(g, instruction->actual_type), 0), "");
value = LLVMConstZExt(value, get_llvm_type(g, instruction->actual_type));
value = LLVMBuildZExt(g->builder, value, get_llvm_type(g, instruction->actual_type), "");
}
LLVMValueRef store_inst = gen_store(g, value, ptr, instruction->ptr->value->type);
LLVMSetOrdering(store_inst, ordering);