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Merge pull request #3711 from laytan/fix-swizzle-crash

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fix swizzle crash due to wrong alignment
This commit is contained in:
Jeroen van Rijn
2024-06-09 11:00:15 +02:00
committed by GitHub
parent e595bdc805 3628154849
commit 5d5ef78de9
1 changed files with 2 additions and 2 deletions
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4
src/llvm_backend_general.cpp
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@@ -1383,8 +1383,6 @@ gb_internal lbValue lb_addr_load(lbProcedure *p, lbAddr const &addr) {
LLVMTypeRef vector_type = nullptr;
if (lb_try_vector_cast(p->module, addr.addr, &vector_type)) {
LLVMSetAlignment(res.addr.value, cast(unsigned)lb_alignof(vector_type));
LLVMValueRef vp = LLVMBuildPointerCast(p->builder, addr.addr.value, LLVMPointerType(vector_type, 0), "");
LLVMValueRef v = LLVMBuildLoad2(p->builder, vector_type, vp, "");
LLVMValueRef scalars[4] = {};
@@ -1394,6 +1392,8 @@ gb_internal lbValue lb_addr_load(lbProcedure *p, lbAddr const &addr) {
LLVMValueRef mask = LLVMConstVector(scalars, addr.swizzle.count);
LLVMValueRef sv = llvm_basic_shuffle(p, v, mask);
LLVMSetAlignment(res.addr.value, cast(unsigned)lb_alignof(LLVMTypeOf(sv)));
LLVMValueRef dst = LLVMBuildPointerCast(p->builder, ptr.value, LLVMPointerType(LLVMTypeOf(sv), 0), "");
LLVMBuildStore(p->builder, sv, dst);
} else {