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Minor alignment cleanup for swizzle load

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This commit is contained in:
gingerBill
2021-06-08 14:27:36 +01:00
parent 8e62f9c83c
commit 76bb82a726
1 changed files with 10 additions and 1 deletions
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11
src/llvm_backend.cpp
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@@ -797,9 +797,18 @@ lbValue lb_addr_load(lbProcedure *p, lbAddr const &addr) {
Type *array_type = base_type(addr.swizzle.type);
GB_ASSERT(array_type->kind == Type_Array);
unsigned res_align = cast(unsigned)type_align_of(addr.swizzle.type);
static u8 const ordered_indices[4] = {0, 1, 2, 3};
if (gb_memcompare(ordered_indices, addr.swizzle.indices, addr.swizzle.count) == 0) {
if (LLVMGetAlignment(addr.addr.value) >= type_align_of(addr.swizzle.type)) {
LLVMValueRef addr_ptr = addr.addr.value;
if (LLVMGetAlignment(addr.addr.value) < res_align) {
if (LLVMIsAAllocaInst(addr_ptr) || LLVMIsAGlobalValue(addr_ptr)) {
LLVMSetAlignment(addr_ptr, res_align);
}
}
if (LLVMGetAlignment(addr.addr.value) >= res_align) {
Type *pt = alloc_type_pointer(addr.swizzle.type);
lbValue res = {};
res.value = LLVMBuildPointerCast(p->builder, addr.addr.value, lb_type(p->module, pt), "");