llvm-project/clang/test/CodeGenCXX/const-base-cast.cpp

// RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm %s -o - | FileCheck %s

// Check that the following construct, which is similar to one which occurs
// in Firefox, is folded correctly.
struct A { char x; };
struct B { char y; };
struct C : A,B {};
unsigned char x = ((char*)(B*)(C*)0x1000) - (char*)0x1000;

// CHECK: @x = global i8 1
Remove the -cxx-abi command-line flag. This makes the C++ ABI depend entirely on the target: MS ABI for -win32 triples, Itanium otherwise. It's no longer possible to do weird combinations. To be able to run a test with a specific ABI without constraining it to a specific triple, new substitutions are added to lit: %itanium_abi_triple and %ms_abi_triple can be used to get the current target triple adjusted to the desired ABI. For example, if the test suite is running with the i686-pc-win32 target, %itanium_abi_triple will expand to i686-pc-mingw32. Differential Revision: http://llvm-reviews.chandlerc.com/D2545 llvm-svn: 199250 2014-01-15 03:35:09 +08:00			`// RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm %s -o - \| FileCheck %s`
Fix PointerExprEvaluator::VisitCastExpr so it doesn't misfold C++ casts which it doesn't know how to fold, like derived-to-base casts. llvm-svn: 92173 2009-12-27 13:43:15 +08:00
			`// Check that the following construct, which is similar to one which occurs`
Constant expression evaluation: add support for evaluation of member pointers and base-to-derived casts, and add proper handling of temporaries. llvm-svn: 144926 2011-11-18 06:56:20 +08:00			`// in Firefox, is folded correctly.`
Fix PointerExprEvaluator::VisitCastExpr so it doesn't misfold C++ casts which it doesn't know how to fold, like derived-to-base casts. llvm-svn: 92173 2009-12-27 13:43:15 +08:00			`struct A { char x; };`
			`struct B { char y; };`
			`struct C : A,B {};`
			`unsigned char x = ((char)(B)(C)0x1000) - (char)0x1000;`

			`// CHECK: @x = global i8 1`