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https://github.com/Gericom/teak-llvm.git
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8e57b07f66
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
45 lines
2.5 KiB
C
45 lines
2.5 KiB
C
// RUN: %clang_cc1 -triple i686-unknown-linux-gnu -fexceptions -fblocks -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-GNU
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// RUN: %clang_cc1 -triple i686-unknown-linux-gnu -fexceptions -fdwarf-exceptions -fblocks -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-DWARF
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// RUN: %clang_cc1 -triple i686-unknown-linux-gnu -fexceptions -fseh-exceptions -fblocks -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-SEH
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// RUN: %clang_cc1 -triple i686-unknown-linux-gnu -fexceptions -fsjlj-exceptions -fblocks -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-SJLJ
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// RUN: %clang_cc1 -triple i686-unknown-windows-msvc -fexceptions -fblocks -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-WIN
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// 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
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// 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
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// RUN: %clang_cc1 -triple i686-unknown-windows-gnu -fexceptions -fblocks -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-GNU
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// RUN: %clang_cc1 -triple i686-unknown-windows-gnu -fexceptions -fdwarf-exceptions -fblocks -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-DWARF
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// RUN: %clang_cc1 -triple i686-unknown-windows-gnu -fexceptions -fseh-exceptions -fblocks -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-SEH
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// RUN: %clang_cc1 -triple i686-unknown-windows-gnu -fexceptions -fsjlj-exceptions -fblocks -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-SJLJ
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extern void g(void (^)(void));
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extern void i(void);
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// CHECK-GNU: personality i8* bitcast (i32 (...)* @__gcc_personality_v0 to i8*)
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// CHECK-DWARF: personality i8* bitcast (i32 (...)* @__gcc_personality_v0 to i8*)
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// CHECK-SEH: personality i8* bitcast (i32 (...)* @__gcc_personality_seh0 to i8*)
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// CHECK-SJLJ: personality i8* bitcast (i32 (...)* @__gcc_personality_sj0 to i8*)
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// CHECK-WIN: personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
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// CHECK-MINGW-SEH: personality i8* bitcast (i32 (...)* @__gcc_personality_seh0 to i8*)
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void f(void) {
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__block int i;
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^{ (void)i; };
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g(^ { });
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}
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#if defined(__SEH_EXCEPTIONS__)
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// CHECK-WIN-SEH-X86: personality i8* bitcast (i32 (...)* @_except_handler3 to i8*)
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// CHECK-WIN-SEH-X64: personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
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void h(void) {
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__try {
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i();
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} __finally {
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}
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}
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#endif
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