2162a18fb2
In https://github.com/llvm/llvm-project/pull/96422 we started treating empty records as zero-sized for the purpose of layout. In `C`, empty fields were never considered `isZeroSize`, so we would never have tried to call `Init->hasSideEffects` on them. But since https://github.com/llvm/llvm-project/pull/96422 we can get here when compiling `C`, but `Init` need not exist. This patch adds a null-check to account for this situtation.
22 lines
651 B
C
22 lines
651 B
C
// RUN: %clang_cc1 -emit-llvm %s -o - -triple i686-pc-linux-gnu | FileCheck %s
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// RUN: %clang_cc1 -x c++ %s -emit-llvm -triple x86_64-linux-gnu -o - | FileCheck %s --check-prefixes=CHECK-CXX
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// Make sure we generate something sane instead of a ptrtoint
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// CHECK: @r, [4 x i8] undef
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union x {long long b;union x* a;} r = {.a = &r};
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// CHECK: global { [3 x i8], [5 x i8] } { [3 x i8] zeroinitializer, [5 x i8] undef }
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union z {
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char a[3];
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long long b;
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};
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union z y = {};
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// CHECK: @foo = {{.*}}global %union.Foo undef, align 1
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// CHECK-CXX: @foo = {{.*}}global %union.Foo undef, align 1
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union Foo {
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struct Empty {} val;
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};
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union Foo foo = {};
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