forked from OSchip/llvm-project
123 lines
4.5 KiB
C
123 lines
4.5 KiB
C
// RUN: %clang_cc1 -no-opaque-pointers -triple aarch64-linux-gnu -emit-llvm < %s | FileCheck -check-prefixes=LINUX,COMMON %s
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// RUN: %clang_cc1 -no-opaque-pointers -triple aarch64-pc-win32 -emit-llvm < %s | FileCheck -check-prefixes=WIN64,COMMON %s
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struct small_odd {
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char a, b, c;
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};
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struct larger {
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int a, b, c, d, e;
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};
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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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// COMMON: 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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// COMMON: %[[AP:.*]] = alloca i8*
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// COMMON: call void @llvm.va_start
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int b = __builtin_va_arg(ap, int);
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// COMMON: %[[AP_CUR:.*]] = load i8*, i8** %[[AP]]
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// COMMON-NEXT: %[[AP_NEXT:.*]] = getelementptr inbounds i8, i8* %[[AP_CUR]], i64 8
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// COMMON-NEXT: store i8* %[[AP_NEXT]], i8** %[[AP]]
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// COMMON-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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// COMMON: %[[AP_VAL:.*]] = load i8*, i8** %[[AP]]
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// COMMON-NEXT: store i8* %[[AP_VAL]], i8** %[[AP2:.*]]
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__builtin_ms_va_end(ap);
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// COMMON: call void @llvm.va_end
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}
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void __attribute__((ms_abi)) f4_2(int a, ...) {
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// LINUX-LABEL: define{{.*}} win64cc void @f4_2
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// WIN64-LABEL: define dso_local void @f4_2
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__builtin_ms_va_list ap;
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__builtin_ms_va_start(ap, a);
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// COMMON: %[[AP:.*]] = alloca i8*
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// COMMON: call void @llvm.va_start
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struct small_odd s1 = __builtin_va_arg(ap, struct small_odd);
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// COMMON: %[[AP_CUR:.*]] = load i8*, i8** %[[AP]]
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// COMMON-NEXT: %[[AP_NEXT:.*]] = getelementptr inbounds i8, i8* %[[AP_CUR]], i64 8
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// COMMON-NEXT: store i8* %[[AP_NEXT]], i8** %[[AP]]
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// COMMON-NEXT: bitcast i8* %[[AP_CUR]] to %struct.small_odd*
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struct larger s2 = __builtin_va_arg(ap, struct larger);
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// COMMON: %[[AP_CUR2:.*]] = load i8*, i8** %[[AP]]
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// COMMON-NEXT: %[[AP_NEXT3:.*]] = getelementptr inbounds i8, i8* %[[AP_CUR2]], i64 8
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// COMMON-NEXT: store i8* %[[AP_NEXT3]], i8** %[[AP]]
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// COMMON-NEXT: bitcast i8* %[[AP_CUR2]] to %struct.larger**
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__builtin_ms_va_end(ap);
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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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struct HFA {
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float a, b, c;
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};
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__attribute__((ms_abi)) void msabi_hfa(struct HFA a);
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__attribute__((ms_abi)) void msabi_hfa_vararg(struct HFA a, int b, ...);
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void call_msabi_hfa(void) {
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// COMMON-LABEL: define{{.*}} void @call_msabi_hfa()
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// WIN64: call void @msabi_hfa([3 x float] {{.*}})
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// LINUX: call win64cc void @msabi_hfa([3 x float] {{.*}})
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msabi_hfa((struct HFA){1.0f, 2.0f, 3.0f});
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}
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void call_msabi_hfa_vararg(void) {
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// COMMON-LABEL: define{{.*}} void @call_msabi_hfa_vararg()
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// WIN64: call void ([2 x i64], i32, ...) @msabi_hfa_vararg([2 x i64] {{.*}}, i32 noundef 4, [2 x i64] {{.*}})
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// LINUX: call win64cc void ([2 x i64], i32, ...) @msabi_hfa_vararg([2 x i64] {{.*}}, i32 noundef 4, [2 x i64] {{.*}})
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msabi_hfa_vararg((struct HFA){1.0f, 2.0f, 3.0f}, 4,
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(struct HFA){5.0f, 6.0f, 7.0f});
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}
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__attribute__((ms_abi)) void get_msabi_hfa_vararg(int a, ...) {
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// COMMON-LABEL: define{{.*}} void @get_msabi_hfa_vararg
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__builtin_ms_va_list ap;
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__builtin_ms_va_start(ap, a);
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// COMMON: %[[AP:.*]] = alloca i8*
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// COMMON: call void @llvm.va_start
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struct HFA b = __builtin_va_arg(ap, struct HFA);
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// COMMON: %[[AP_CUR:.*]] = load i8*, i8** %[[AP]]
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// COMMON-NEXT: %[[AP_NEXT:.*]] = getelementptr inbounds i8, i8* %[[AP_CUR]], i64 16
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// COMMON-NEXT: store i8* %[[AP_NEXT]], i8** %[[AP]]
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// COMMON-NEXT: bitcast i8* %[[AP_CUR]] to %struct.HFA*
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__builtin_ms_va_end(ap);
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}
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