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llvm-project/clang/test/CodeGenCXX/vararg-non-pod.cpp

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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 -Wno-error=non-pod-varargs -triple %itanium_abi_triple -emit-llvm -o - %s | FileCheck %s
Fix our handling of the warning when one tries to pass a non-POD/non-trivial object throuugh a C-style varargs. The warning itself was default-mapped to error, but can be downgraded, but we were treating it in Sema like a hard error, silently dropping the call. Instead, treat this problem like a warning, and do what the warning says we do: abort at runtime. To do so, we fake up a __builtin_trap() expression that gets evaluated as part of the argument. llvm-svn: 131805
2011-05-22 03:26:31 +08:00
struct X {
X();
X(const X&);
~X();
};
void vararg(...);
CHECK-LABEL-ify some code gen tests to improve diagnostic experience when tests fail. llvm-svn: 188447
2013-08-15 14:47:53 +08:00
// CHECK-LABEL: define void @_Z4test1X
Fix our handling of the warning when one tries to pass a non-POD/non-trivial object throuugh a C-style varargs. The warning itself was default-mapped to error, but can be downgraded, but we were treating it in Sema like a hard error, silently dropping the call. Instead, treat this problem like a warning, and do what the warning says we do: abort at runtime. To do so, we fake up a __builtin_trap() expression that gets evaluated as part of the argument. llvm-svn: 131805
2011-05-22 03:26:31 +08:00
void test(X x) {
// CHECK: call void @llvm.trap()
vararg(x);
// CHECK: ret void
}