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Fix alignment issue when casting vector rvalue to static array

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Previously, the static-array alloca wasn't suitably aligned for the
store instruction, which uses the greater vector alignment.
This has surfaced now with LLVM 11 on Win32 - this fixes dmd-testsuite's
runnable/ldc_llvm_inline_ir.d.
This commit is contained in:
Martin Kinkelin 2020-08-26 12:30:21 +02:00
parent 7aea2e73e9
commit c8889a9219
1 changed files with 1 additions and 2 deletions
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3
gen/llvmhelpers.cpp
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@ -637,8 +637,7 @@ DValue *DtoCastVector(Loc &loc, DValue *val, Type *to) {
LLValue *vector = DtoRVal(val); LLValue *vector = DtoRVal(val);
IF_LOG Logger::cout() << "src: " << *vector << "to type: " << *tolltype IF_LOG Logger::cout() << "src: " << *vector << "to type: " << *tolltype
<< " (creating temporary)\n"; << " (creating temporary)\n";
LLValue *array = DtoAlloca(to); LLValue *array = DtoAllocaDump(vector, tolltype, DtoAlignment(val->type));
DtoStore(vector, DtoBitCast(array, getPtrToType(vector->getType())));
return new DLValue(to, array); return new DLValue(to, array);
} }
if (totype->ty == Tvector && to->size() == val->type->size()) { if (totype->ty == Tvector && to->size() == val->type->size()) {