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llvm-project/clang/test/CodeGen/ms_abi_aarch64.c

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[AArch64] Add support for __builtin_ms_va_list on aarch64 Move builtins from the x86 specific scope into the global scope. Their use is still limited to x86_64 and aarch64 though. This allows wine on aarch64 to properly handle variadic functions. Differential Revision: https://reviews.llvm.org/D34475 llvm-svn: 308218
2017-07-18 04:49:45 +08:00
// RUN: %clang_cc1 -triple aarch64-linux-gnu -emit-llvm < %s | FileCheck -check-prefix=LINUX %s
// RUN: %clang_cc1 -triple aarch64-pc-win32 -emit-llvm < %s | FileCheck -check-prefix=WIN64 %s
void __attribute__((ms_abi)) f1(void);
void f2(void);
void f3(void) {
[CodeGenModule] Assume dso_local for -fpic -fno-semantic-interposition Summary: Clang -fpic defaults to -fno-semantic-interposition (GCC -fpic defaults to -fsemantic-interposition). Users need to specify -fsemantic-interposition to get semantic interposition behavior. Semantic interposition is currently a best-effort feature. There may still be some cases where it is not handled well. Reviewers: peter.smith, rnk, serge-sans-paille, sfertile, jfb, jdoerfert Subscribers: dschuff, jyknight, dylanmckay, nemanjai, jvesely, kbarton, fedor.sergeev, asb, rbar, johnrusso, simoncook, sabuasal, niosHD, jrtc27, zzheng, edward-jones, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, arphaman, PkmX, jocewei, jsji, Jim, lenary, s.egerton, pzheng, sameer.abuasal, apazos, luismarques, cfe-commits Tags: #clang Differential Revision: https://reviews.llvm.org/D73865
2020-02-03 04:23:47 +08:00
// LINUX-LABEL: define dso_local void @f3()
Bring r325915 back. The tests that failed on a windows host have been fixed. Original message: Start setting dso_local for COFF. With this there are still some GVs where we don't set dso_local because setGVProperties is never called. I intend to fix that in followup commits. This is just the bare minimum to teach shouldAssumeDSOLocal what it should do for COFF. llvm-svn: 325940
2018-02-24 03:30:48 +08:00
// WIN64-LABEL: define dso_local void @f3()
[AArch64] Add support for __builtin_ms_va_list on aarch64 Move builtins from the x86 specific scope into the global scope. Their use is still limited to x86_64 and aarch64 though. This allows wine on aarch64 to properly handle variadic functions. Differential Revision: https://reviews.llvm.org/D34475 llvm-svn: 308218
2017-07-18 04:49:45 +08:00
f1();
// LINUX: call win64cc void @f1()
// WIN64: call void @f1()
f2();
// LINUX: call void @f2()
// WIN64: call void @f2()
}
// LINUX: declare win64cc void @f1()
// LINUX: declare void @f2()
Bring r325915 back. The tests that failed on a windows host have been fixed. Original message: Start setting dso_local for COFF. With this there are still some GVs where we don't set dso_local because setGVProperties is never called. I intend to fix that in followup commits. This is just the bare minimum to teach shouldAssumeDSOLocal what it should do for COFF. llvm-svn: 325940
2018-02-24 03:30:48 +08:00
// WIN64: declare dso_local void @f1()
// WIN64: declare dso_local void @f2()
[AArch64] Add support for __builtin_ms_va_list on aarch64 Move builtins from the x86 specific scope into the global scope. Their use is still limited to x86_64 and aarch64 though. This allows wine on aarch64 to properly handle variadic functions. Differential Revision: https://reviews.llvm.org/D34475 llvm-svn: 308218
2017-07-18 04:49:45 +08:00
// Win64 ABI varargs
void __attribute__((ms_abi)) f4(int a, ...) {
[CodeGenModule] Assume dso_local for -fpic -fno-semantic-interposition Summary: Clang -fpic defaults to -fno-semantic-interposition (GCC -fpic defaults to -fsemantic-interposition). Users need to specify -fsemantic-interposition to get semantic interposition behavior. Semantic interposition is currently a best-effort feature. There may still be some cases where it is not handled well. Reviewers: peter.smith, rnk, serge-sans-paille, sfertile, jfb, jdoerfert Subscribers: dschuff, jyknight, dylanmckay, nemanjai, jvesely, kbarton, fedor.sergeev, asb, rbar, johnrusso, simoncook, sabuasal, niosHD, jrtc27, zzheng, edward-jones, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, arphaman, PkmX, jocewei, jsji, Jim, lenary, s.egerton, pzheng, sameer.abuasal, apazos, luismarques, cfe-commits Tags: #clang Differential Revision: https://reviews.llvm.org/D73865
2020-02-03 04:23:47 +08:00
// LINUX-LABEL: define dso_local win64cc void @f4
Bring r325915 back. The tests that failed on a windows host have been fixed. Original message: Start setting dso_local for COFF. With this there are still some GVs where we don't set dso_local because setGVProperties is never called. I intend to fix that in followup commits. This is just the bare minimum to teach shouldAssumeDSOLocal what it should do for COFF. llvm-svn: 325940
2018-02-24 03:30:48 +08:00
// WIN64-LABEL: define dso_local void @f4
[AArch64] Add support for __builtin_ms_va_list on aarch64 Move builtins from the x86 specific scope into the global scope. Their use is still limited to x86_64 and aarch64 though. This allows wine on aarch64 to properly handle variadic functions. Differential Revision: https://reviews.llvm.org/D34475 llvm-svn: 308218
2017-07-18 04:49:45 +08:00
__builtin_ms_va_list ap;
__builtin_ms_va_start(ap, a);
// LINUX: %[[AP:.*]] = alloca i8*
// LINUX: call void @llvm.va_start
// WIN64: %[[AP:.*]] = alloca i8*
// WIN64: call void @llvm.va_start
int b = __builtin_va_arg(ap, int);
// LINUX: %[[AP_CUR:.*]] = load i8*, i8** %[[AP]]
// LINUX-NEXT: %[[AP_NEXT:.*]] = getelementptr inbounds i8, i8* %[[AP_CUR]], i64 8
// LINUX-NEXT: store i8* %[[AP_NEXT]], i8** %[[AP]]
// LINUX-NEXT: bitcast i8* %[[AP_CUR]] to i32*
// WIN64: %[[AP_CUR:.*]] = load i8*, i8** %[[AP]]
// WIN64-NEXT: %[[AP_NEXT:.*]] = getelementptr inbounds i8, i8* %[[AP_CUR]], i64 8
// WIN64-NEXT: store i8* %[[AP_NEXT]], i8** %[[AP]]
// WIN64-NEXT: bitcast i8* %[[AP_CUR]] to i32*
__builtin_ms_va_list ap2;
__builtin_ms_va_copy(ap2, ap);
// LINUX: %[[AP_VAL:.*]] = load i8*, i8** %[[AP]]
// LINUX-NEXT: store i8* %[[AP_VAL]], i8** %[[AP2:.*]]
// WIN64: %[[AP_VAL:.*]] = load i8*, i8** %[[AP]]
// WIN64-NEXT: store i8* %[[AP_VAL]], i8** %[[AP2:.*]]
__builtin_ms_va_end(ap);
// LINUX: call void @llvm.va_end
// WIN64: call void @llvm.va_end
}
// Let's verify that normal va_lists work right on Win64, too.
void f5(int a, ...) {
Bring r325915 back. The tests that failed on a windows host have been fixed. Original message: Start setting dso_local for COFF. With this there are still some GVs where we don't set dso_local because setGVProperties is never called. I intend to fix that in followup commits. This is just the bare minimum to teach shouldAssumeDSOLocal what it should do for COFF. llvm-svn: 325940
2018-02-24 03:30:48 +08:00
// WIN64-LABEL: define dso_local void @f5
[AArch64] Add support for __builtin_ms_va_list on aarch64 Move builtins from the x86 specific scope into the global scope. Their use is still limited to x86_64 and aarch64 though. This allows wine on aarch64 to properly handle variadic functions. Differential Revision: https://reviews.llvm.org/D34475 llvm-svn: 308218
2017-07-18 04:49:45 +08:00
__builtin_va_list ap;
__builtin_va_start(ap, a);
// WIN64: %[[AP:.*]] = alloca i8*
// WIN64: call void @llvm.va_start
int b = __builtin_va_arg(ap, int);
// WIN64: %[[AP_CUR:.*]] = load i8*, i8** %[[AP]]
// WIN64-NEXT: %[[AP_NEXT:.*]] = getelementptr inbounds i8, i8* %[[AP_CUR]], i64 8
// WIN64-NEXT: store i8* %[[AP_NEXT]], i8** %[[AP]]
// WIN64-NEXT: bitcast i8* %[[AP_CUR]] to i32*
__builtin_va_list ap2;
__builtin_va_copy(ap2, ap);
// WIN64: call void @llvm.va_copy
__builtin_va_end(ap);
// WIN64: call void @llvm.va_end
}