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llvm-project/clang/test/CodeGen/cleanup-destslot-simple.c

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Stop messing with the 'g' group of options in CompilerInvocation. With this change, most 'g' options are rejected by CompilerInvocation. They remain only as Driver options. The new way to request debug info from cc1 is with "-debug-info-kind={line-tables-only|limited|standalone}" and "-dwarf-version={2|3|4}". In the absence of a command-line option to specify Dwarf version, the Toolchain decides it, rather than placing Toolchain-specific logic in CompilerInvocation. Also fix a bug in the Windows compatibility argument parsing in which the "rightmost argument wins" principle failed. Differential Revision: http://reviews.llvm.org/D13221 llvm-svn: 249655
2015-10-08 12:24:12 +08:00
// RUN: %clang_cc1 -O1 -triple x86_64-none-linux-gnu -emit-llvm -debug-info-kind=line-tables-only %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=LIFETIME
Don't emit lifetime markers when msan is enabled In r235553, Clang started emitting lifetime markers more often. This caused false negative in MSan, because MSan only poisons all allocas once at function entry. Eventually, MSan should poison allocas at lifetime start and probably also lifetime end, but until then, let's not emit markers that aren't going to be useful. llvm-svn: 235613
2015-04-24 02:07:13 +08:00
// We shouldn't have markers at -O0 or with msan.
[Clang] Remove unwanted --check-prefix=CHECK from unit tests. NFC. Summary: Removed unwanted --check-prefix=CHECK from the following unit tests: test/CXX/special/class.copy/implicit-move-def.cpp test/CodeGen/cleanup-destslot-simple.c test/CodeGen/inline-asm-immediate-ubsan.c test/CodeGen/mips-interrupt-attr.c test/CodeGenCXX/cfi-stats.cpp test/CodeGenCXX/copy-constructor-elim.cpp test/CodeGenCXX/microsoft-templ-uuidof.cpp test/CodeGenCXX/vtable-linkage.cpp test/CodeGenObjC/messages-2.m test/Driver/noinline.c test/Index/remap-load.c test/Index/retain-comments-from-system-headers.c test/OpenMP/task_if_codegen.cpp test/Preprocessor/comment_save_macro.c Patch by: Mandeep Singh Grang (mgrang) Reviewers: rafael, ABataev, rengolin Projects: #clang-c Differential Revision: http://reviews.llvm.org/D19232 llvm-svn: 266843
2016-04-20 09:02:18 +08:00
// RUN: %clang_cc1 -O0 -triple x86_64-none-linux-gnu -emit-llvm -debug-info-kind=line-tables-only %s -o - | FileCheck %s
// RUN: %clang_cc1 -O1 -triple x86_64-none-linux-gnu -emit-llvm -debug-info-kind=line-tables-only %s -o - -fsanitize=memory | FileCheck %s
[MSan] add KMSAN support to Clang driver Boilerplate code for using KMSAN instrumentation in Clang. We add a new command line flag, -fsanitize=kernel-memory, with a corresponding SanitizerKind::KernelMemory, which, along with SanitizerKind::Memory, maps to the memory_sanitizer feature. KMSAN is only supported on x86_64 Linux. It's incompatible with other sanitizers, but supports code coverage instrumentation. llvm-svn: 341641
2018-09-07 17:21:09 +08:00
// RUN: %clang_cc1 -O1 -triple x86_64-none-linux-gnu -emit-llvm -debug-info-kind=line-tables-only %s -o - -fsanitize=kernel-memory | FileCheck %s
Revert "Revert r234581, it might have caused a few miscompiles in Chromium." This reverts commit r234700. It turns out that the lifetime markers were not the cause of Chromium failing but a bug which was uncovered by optimizations exposed by the markers. llvm-svn: 235553
2015-04-23 05:38:15 +08:00
// There is no exception to handle here, lifetime.end is not a destructor,
// so there is no need have cleanup dest slot related code
[test] Add {{.*}} to make ELF tests immune to dso_local/dso_preemptable/(none) differences For a default visibility external linkage definition, dso_local is set for ELF -fno-pic/-fpie and COFF and Mach-O. Since default clang -cc1 for ELF is similar to -fpic ("PIC Level" is not set), this nuance causes unneeded binary format differences. To make emitted IR similar, ELF -cc1 -fpic will default to -fno-semantic-interposition, which sets dso_local for default visibility external linkage definitions. To make this flip smooth and enable future (dso_local as definition default), this patch replaces (function) `define ` with `define{{.*}} `, (variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `.
2020-12-31 16:27:11 +08:00
// CHECK-LABEL: define{{.*}} i32 @test
Revert "Revert r234581, it might have caused a few miscompiles in Chromium." This reverts commit r234700. It turns out that the lifetime markers were not the cause of Chromium failing but a bug which was uncovered by optimizations exposed by the markers. llvm-svn: 235553
2015-04-23 05:38:15 +08:00
int test() {
int x = 3;
int *volatile p = &x;
return *p;
// CHECK: [[X:%.*]] = alloca i32
// CHECK: [[P:%.*]] = alloca i32*
Update for lifetime intrinsic signature change llvm-svn: 299877
2017-04-11 04:18:45 +08:00
// LIFETIME: call void @llvm.lifetime.start.p0i8(i64 4, i8* nonnull %{{.*}}){{( #[0-9]+)?}}, !dbg
// LIFETIME: call void @llvm.lifetime.start.p0i8(i64 8, i8* nonnull %{{.*}}){{( #[0-9]+)?}}, !dbg
Revert "Revert r234581, it might have caused a few miscompiles in Chromium." This reverts commit r234700. It turns out that the lifetime markers were not the cause of Chromium failing but a bug which was uncovered by optimizations exposed by the markers. llvm-svn: 235553
2015-04-23 05:38:15 +08:00
// CHECK-NOT: store i32 %{{.*}}, i32* %cleanup.dest.slot
Update for lifetime intrinsic signature change llvm-svn: 299877
2017-04-11 04:18:45 +08:00
// LIFETIME: call void @llvm.lifetime.end.p0i8(i64 8, {{.*}}){{( #[0-9]+)?}}, !dbg
// LIFETIME: call void @llvm.lifetime.end.p0i8(i64 4, {{.*}}){{( #[0-9]+)?}}, !dbg
Revert "Revert r234581, it might have caused a few miscompiles in Chromium." This reverts commit r234700. It turns out that the lifetime markers were not the cause of Chromium failing but a bug which was uncovered by optimizations exposed by the markers. llvm-svn: 235553
2015-04-23 05:38:15 +08:00
}