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llvm-project/clang/test/CodeGen/personality.c

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CodeGen: simplify and validate exception personalities Simplify the dispatching for the personality routines. This really had no test coverage previously, so add test coverage for the various cases. This turns out to be pretty complicated as the various languages and models interact to change personalities around. You really should feel bad for the compiler if you are using exceptions. There is no reason for this type of cruelty. llvm-svn: 327105
2018-03-09 15:06:42 +08:00
// RUN: %clang_cc1 -triple i686-unknown-linux-gnu -fexceptions -fblocks -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-GNU
// RUN: %clang_cc1 -triple i686-unknown-linux-gnu -fexceptions -fdwarf-exceptions -fblocks -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-DWARF
// RUN: %clang_cc1 -triple i686-unknown-linux-gnu -fexceptions -fseh-exceptions -fblocks -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-SEH
// RUN: %clang_cc1 -triple i686-unknown-linux-gnu -fexceptions -fsjlj-exceptions -fblocks -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-SJLJ
// RUN: %clang_cc1 -triple i686-unknown-windows-msvc -fexceptions -fblocks -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-WIN
[Frontend] Disallow non-MSVC exception models for windows-msvc targets The windows-msvc target is used for MSVC ABI compatibility, including the exceptions model. It doesn't make sense to pair a windows-msvc target with a non-MSVC exception model. This would previously cause an assertion failure; explicitly error out for it in the frontend instead. This also allows us to reduce the matrix of target/exception models a bit (see the modified tests), and we can possibly simplify some of the personality code in a follow-up. Differential Revision: https://reviews.llvm.org/D47853 llvm-svn: 334243
2018-06-08 06:54:54 +08:00
// RUN: %clang_cc1 -triple i686-unknown-windows-msvc -D __SEH_EXCEPTIONS__ -fms-extensions -fexceptions -fblocks -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-WIN-SEH-X86
// RUN: %clang_cc1 -triple x86_64-unknown-windows-msvc -D __SEH_EXCEPTIONS__ -fms-extensions -fexceptions -fblocks -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-WIN-SEH-X64
CodeGen: simplify and validate exception personalities Simplify the dispatching for the personality routines. This really had no test coverage previously, so add test coverage for the various cases. This turns out to be pretty complicated as the various languages and models interact to change personalities around. You really should feel bad for the compiler if you are using exceptions. There is no reason for this type of cruelty. llvm-svn: 327105
2018-03-09 15:06:42 +08:00
[Frontend] Disallow non-MSVC exception models for windows-msvc targets The windows-msvc target is used for MSVC ABI compatibility, including the exceptions model. It doesn't make sense to pair a windows-msvc target with a non-MSVC exception model. This would previously cause an assertion failure; explicitly error out for it in the frontend instead. This also allows us to reduce the matrix of target/exception models a bit (see the modified tests), and we can possibly simplify some of the personality code in a follow-up. Differential Revision: https://reviews.llvm.org/D47853 llvm-svn: 334243
2018-06-08 06:54:54 +08:00
// RUN: %clang_cc1 -triple i686-unknown-windows-gnu -fexceptions -fblocks -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-GNU
// RUN: %clang_cc1 -triple i686-unknown-windows-gnu -fexceptions -fdwarf-exceptions -fblocks -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-DWARF
// RUN: %clang_cc1 -triple i686-unknown-windows-gnu -fexceptions -fseh-exceptions -fblocks -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-SEH
// RUN: %clang_cc1 -triple i686-unknown-windows-gnu -fexceptions -fsjlj-exceptions -fblocks -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-SJLJ
CodeGen: simplify and validate exception personalities Simplify the dispatching for the personality routines. This really had no test coverage previously, so add test coverage for the various cases. This turns out to be pretty complicated as the various languages and models interact to change personalities around. You really should feel bad for the compiler if you are using exceptions. There is no reason for this type of cruelty. llvm-svn: 327105
2018-03-09 15:06:42 +08:00
extern void g(void (^)(void));
extern void i(void);
// CHECK-GNU: personality i8* bitcast (i32 (...)* @__gcc_personality_v0 to i8*)
// CHECK-DWARF: personality i8* bitcast (i32 (...)* @__gcc_personality_v0 to i8*)
// CHECK-SEH: personality i8* bitcast (i32 (...)* @__gcc_personality_seh0 to i8*)
// CHECK-SJLJ: personality i8* bitcast (i32 (...)* @__gcc_personality_sj0 to i8*)
// CHECK-WIN: personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
// CHECK-MINGW-SEH: personality i8* bitcast (i32 (...)* @__gcc_personality_seh0 to i8*)
void f(void) {
__block int i;
Distinguish `__block` variables that are captured by escaping blocks from those that aren't. This patch changes the way __block variables that aren't captured by escaping blocks are handled: - Since non-escaping blocks on the stack never get copied to the heap (see https://reviews.llvm.org/D49303), Sema shouldn't error out when the type of a non-escaping __block variable doesn't have an accessible copy constructor. - IRGen doesn't have to use the specialized byref structure (see https://clang.llvm.org/docs/Block-ABI-Apple.html#id8) for a non-escaping __block variable anymore. Instead IRGen can emit the variable as a normal variable and copy the reference to the block literal. Byref copy/dispose helpers aren't needed either. This reapplies r343518 after fixing a use-after-free bug in function Sema::ActOnBlockStmtExpr where the BlockScopeInfo was dereferenced after it was popped and deleted. rdar://problem/39352313 Differential Revision: https://reviews.llvm.org/D51564 llvm-svn: 343542
2018-10-02 05:51:28 +08:00
^{ (void)i; };
CodeGen: simplify and validate exception personalities Simplify the dispatching for the personality routines. This really had no test coverage previously, so add test coverage for the various cases. This turns out to be pretty complicated as the various languages and models interact to change personalities around. You really should feel bad for the compiler if you are using exceptions. There is no reason for this type of cruelty. llvm-svn: 327105
2018-03-09 15:06:42 +08:00
g(^ { });
}
#if defined(__SEH_EXCEPTIONS__)
// CHECK-WIN-SEH-X86: personality i8* bitcast (i32 (...)* @_except_handler3 to i8*)
// CHECK-WIN-SEH-X64: personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
void h(void) {
__try {
i();
} __finally {
}
}
#endif