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llvm-project/clang/test/OpenMP/constexpr_partial_array.cpp

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Fix for PR43175: compiler crash when trying to emit noncapturable constant. If the constexpr variable is partially initialized, the initializer can be emitted as the structure, not as an array, because of some early optimizations. The llvm variable gets the type from this constant and, thus, gets the type which is pointer to struct rather than pointer to an array. We need to convert this type to be truely array, otherwise it may lead to the compiler crash when trying to emit array subscript expression. llvm-svn: 371548
2019-09-11 03:16:56 +08:00
// RUN: %clang_cc1 -verify -triple x86_64-pc-windows-msvc19.22.27905 -emit-llvm -o - -fopenmp %s | FileCheck %s
// expected-no-diagnostics
// CHECK: [[C_VAR_VAL:@.+]] = private unnamed_addr constant <{ i8, [26 x i8] }> <{ i8 1, [26 x i8] zeroinitializer }>,
char a;
bool b() {
static constexpr bool c[27]{1};
// CHECK: getelementptr inbounds [27 x i8], [27 x i8]* bitcast (<{ i8, [26 x i8] }>* [[C_VAR_VAL]] to [27 x i8]*),
return c[a];
}