69 lines
2.5 KiB
C
69 lines
2.5 KiB
C
// RUN: %clang_cc1 -triple aarch64-linux-gnu -emit-llvm < %s | FileCheck -check-prefix=LINUX %s
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// RUN: %clang_cc1 -triple aarch64-pc-win32 -emit-llvm < %s | FileCheck -check-prefix=WIN64 %s
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void __attribute__((ms_abi)) f1(void);
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void f2(void);
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void f3(void) {
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// LINUX-LABEL: define{{.*}} void @f3()
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// WIN64-LABEL: define dso_local void @f3()
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f1();
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// LINUX: call win64cc void @f1()
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// WIN64: call void @f1()
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f2();
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// LINUX: call void @f2()
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// WIN64: call void @f2()
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}
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// LINUX: declare win64cc void @f1()
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// LINUX: declare void @f2()
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// WIN64: declare dso_local void @f1()
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// WIN64: declare dso_local void @f2()
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// Win64 ABI varargs
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void __attribute__((ms_abi)) f4(int a, ...) {
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// LINUX-LABEL: define{{.*}} win64cc void @f4
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// WIN64-LABEL: define dso_local void @f4
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__builtin_ms_va_list ap;
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__builtin_ms_va_start(ap, a);
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// LINUX: %[[AP:.*]] = alloca i8*
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// LINUX: call void @llvm.va_start
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// WIN64: %[[AP:.*]] = alloca i8*
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// WIN64: call void @llvm.va_start
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int b = __builtin_va_arg(ap, int);
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// LINUX: %[[AP_CUR:.*]] = load i8*, i8** %[[AP]]
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// LINUX-NEXT: %[[AP_NEXT:.*]] = getelementptr inbounds i8, i8* %[[AP_CUR]], i64 8
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// LINUX-NEXT: store i8* %[[AP_NEXT]], i8** %[[AP]]
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// LINUX-NEXT: bitcast i8* %[[AP_CUR]] to i32*
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// WIN64: %[[AP_CUR:.*]] = load i8*, i8** %[[AP]]
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// WIN64-NEXT: %[[AP_NEXT:.*]] = getelementptr inbounds i8, i8* %[[AP_CUR]], i64 8
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// WIN64-NEXT: store i8* %[[AP_NEXT]], i8** %[[AP]]
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// WIN64-NEXT: bitcast i8* %[[AP_CUR]] to i32*
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__builtin_ms_va_list ap2;
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__builtin_ms_va_copy(ap2, ap);
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// LINUX: %[[AP_VAL:.*]] = load i8*, i8** %[[AP]]
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// LINUX-NEXT: store i8* %[[AP_VAL]], i8** %[[AP2:.*]]
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// WIN64: %[[AP_VAL:.*]] = load i8*, i8** %[[AP]]
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// WIN64-NEXT: store i8* %[[AP_VAL]], i8** %[[AP2:.*]]
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__builtin_ms_va_end(ap);
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// LINUX: call void @llvm.va_end
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// WIN64: call void @llvm.va_end
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}
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// Let's verify that normal va_lists work right on Win64, too.
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void f5(int a, ...) {
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// WIN64-LABEL: define dso_local void @f5
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__builtin_va_list ap;
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__builtin_va_start(ap, a);
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// WIN64: %[[AP:.*]] = alloca i8*
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// WIN64: call void @llvm.va_start
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int b = __builtin_va_arg(ap, int);
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// WIN64: %[[AP_CUR:.*]] = load i8*, i8** %[[AP]]
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// WIN64-NEXT: %[[AP_NEXT:.*]] = getelementptr inbounds i8, i8* %[[AP_CUR]], i64 8
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// WIN64-NEXT: store i8* %[[AP_NEXT]], i8** %[[AP]]
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// WIN64-NEXT: bitcast i8* %[[AP_CUR]] to i32*
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__builtin_va_list ap2;
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__builtin_va_copy(ap2, ap);
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// WIN64: call void @llvm.va_copy
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__builtin_va_end(ap);
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// WIN64: call void @llvm.va_end
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}
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