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-rw-r--r--test/CodeGen/ms_abi.c137
1 files changed, 131 insertions, 6 deletions
diff --git a/test/CodeGen/ms_abi.c b/test/CodeGen/ms_abi.c
index 7c5c26fc41c2..2cca24901b9a 100644
--- a/test/CodeGen/ms_abi.c
+++ b/test/CodeGen/ms_abi.c
@@ -1,20 +1,145 @@
// RUN: %clang_cc1 -triple x86_64-unknown-freebsd10.0 -emit-llvm < %s | FileCheck -check-prefix=FREEBSD %s
// RUN: %clang_cc1 -triple x86_64-pc-win32 -emit-llvm < %s | FileCheck -check-prefix=WIN64 %s
+struct foo {
+ int x;
+ float y;
+ char z;
+};
+// FREEBSD: %[[STRUCT_FOO:.*]] = type { i32, float, i8 }
+// WIN64: %[[STRUCT_FOO:.*]] = type { i32, float, i8 }
+
void __attribute__((ms_abi)) f1(void);
void __attribute__((sysv_abi)) f2(void);
void f3(void) {
-// FREEBSD: define void @f3()
-// WIN64: define void @f3()
+ // FREEBSD-LABEL: define void @f3()
+ // WIN64-LABEL: define void @f3()
f1();
-// FREEBSD: call x86_64_win64cc void @f1()
-// WIN64: call void @f1()
+ // FREEBSD: call x86_64_win64cc void @f1()
+ // WIN64: call void @f1()
f2();
-// FREEBSD: call void @f2()
-// WIN64: call x86_64_sysvcc void @f2()
+ // FREEBSD: call void @f2()
+ // WIN64: call x86_64_sysvcc void @f2()
}
// FREEBSD: declare x86_64_win64cc void @f1()
// FREEBSD: declare void @f2()
// WIN64: declare void @f1()
// WIN64: declare x86_64_sysvcc void @f2()
+// Win64 ABI varargs
+void __attribute__((ms_abi)) f4(int a, ...) {
+ // FREEBSD-LABEL: define x86_64_win64cc void @f4
+ // WIN64-LABEL: define void @f4
+ __builtin_ms_va_list ap;
+ __builtin_ms_va_start(ap, a);
+ // FREEBSD: %[[AP:.*]] = alloca i8*
+ // FREEBSD: call void @llvm.va_start
+ // WIN64: %[[AP:.*]] = alloca i8*
+ // WIN64: call void @llvm.va_start
+ int b = __builtin_va_arg(ap, int);
+ // FREEBSD: %[[AP_CUR:.*]] = load i8*, i8** %[[AP]]
+ // FREEBSD-NEXT: %[[AP_NEXT:.*]] = getelementptr inbounds i8, i8* %[[AP_CUR]], i64 8
+ // FREEBSD-NEXT: store i8* %[[AP_NEXT]], i8** %[[AP]]
+ // FREEBSD-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*
+ double _Complex c = __builtin_va_arg(ap, double _Complex);
+ // FREEBSD: %[[AP_CUR2:.*]] = load i8*, i8** %[[AP]]
+ // FREEBSD-NEXT: %[[AP_NEXT2:.*]] = getelementptr inbounds i8, i8* %[[AP_CUR2]], i64 16
+ // FREEBSD-NEXT: store i8* %[[AP_NEXT2]], i8** %[[AP]]
+ // FREEBSD-NEXT: bitcast i8* %[[AP_CUR2]] to { double, double }*
+ // WIN64: %[[AP_CUR2:.*]] = load i8*, i8** %[[AP]]
+ // WIN64-NEXT: %[[AP_NEXT2:.*]] = getelementptr inbounds i8, i8* %[[AP_CUR2]], i64 16
+ // WIN64-NEXT: store i8* %[[AP_NEXT2]], i8** %[[AP]]
+ // WIN64-NEXT: bitcast i8* %[[AP_CUR2]] to { double, double }*
+ struct foo d = __builtin_va_arg(ap, struct foo);
+ // FREEBSD: %[[AP_CUR3:.*]] = load i8*, i8** %[[AP]]
+ // FREEBSD-NEXT: %[[AP_NEXT3:.*]] = getelementptr inbounds i8, i8* %[[AP_CUR3]], i64 16
+ // FREEBSD-NEXT: store i8* %[[AP_NEXT3]], i8** %[[AP]]
+ // FREEBSD-NEXT: bitcast i8* %[[AP_CUR3]] to %[[STRUCT_FOO]]*
+ // WIN64: %[[AP_CUR3:.*]] = load i8*, i8** %[[AP]]
+ // WIN64-NEXT: %[[AP_NEXT3:.*]] = getelementptr inbounds i8, i8* %[[AP_CUR3]], i64 16
+ // WIN64-NEXT: store i8* %[[AP_NEXT3]], i8** %[[AP]]
+ // WIN64-NEXT: bitcast i8* %[[AP_CUR3]] to %[[STRUCT_FOO]]*
+ __builtin_ms_va_list ap2;
+ __builtin_ms_va_copy(ap2, ap);
+ // FREEBSD: %[[AP_VAL:.*]] = load i8*, i8** %[[AP]]
+ // FREEBSD-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);
+ // FREEBSD: 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, ...) {
+ // WIN64-LABEL: define void @f5
+ __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*
+ double _Complex c = __builtin_va_arg(ap, double _Complex);
+ // WIN64: %[[AP_CUR2:.*]] = load i8*, i8** %[[AP]]
+ // WIN64-NEXT: %[[AP_NEXT2:.*]] = getelementptr inbounds i8, i8* %[[AP_CUR2]], i64 16
+ // WIN64-NEXT: store i8* %[[AP_NEXT2]], i8** %[[AP]]
+ // WIN64-NEXT: bitcast i8* %[[AP_CUR2]] to { double, double }*
+ struct foo d = __builtin_va_arg(ap, struct foo);
+ // WIN64: %[[AP_CUR3:.*]] = load i8*, i8** %[[AP]]
+ // WIN64-NEXT: %[[AP_NEXT3:.*]] = getelementptr inbounds i8, i8* %[[AP_CUR3]], i64 16
+ // WIN64-NEXT: store i8* %[[AP_NEXT3]], i8** %[[AP]]
+ // WIN64-NEXT: bitcast i8* %[[AP_CUR3]] to %[[STRUCT_FOO]]*
+ __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
+}
+
+// Verify that using a Win64 va_list from a System V function works.
+void __attribute__((sysv_abi)) f6(__builtin_ms_va_list ap) {
+ // FREEBSD-LABEL: define void @f6
+ // FREEBSD: store i8* %ap, i8** %[[AP:.*]]
+ // WIN64-LABEL: define x86_64_sysvcc void @f6
+ // WIN64: store i8* %ap, i8** %[[AP:.*]]
+ int b = __builtin_va_arg(ap, int);
+ // FREEBSD: %[[AP_CUR:.*]] = load i8*, i8** %[[AP]]
+ // FREEBSD-NEXT: %[[AP_NEXT:.*]] = getelementptr inbounds i8, i8* %[[AP_CUR]], i64 8
+ // FREEBSD-NEXT: store i8* %[[AP_NEXT]], i8** %[[AP]]
+ // FREEBSD-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*
+ double _Complex c = __builtin_va_arg(ap, double _Complex);
+ // FREEBSD: %[[AP_CUR2:.*]] = load i8*, i8** %[[AP]]
+ // FREEBSD-NEXT: %[[AP_NEXT2:.*]] = getelementptr inbounds i8, i8* %[[AP_CUR2]], i64 16
+ // FREEBSD-NEXT: store i8* %[[AP_NEXT2]], i8** %[[AP]]
+ // FREEBSD-NEXT: bitcast i8* %[[AP_CUR2]] to { double, double }*
+ // WIN64: %[[AP_CUR2:.*]] = load i8*, i8** %[[AP]]
+ // WIN64-NEXT: %[[AP_NEXT2:.*]] = getelementptr inbounds i8, i8* %[[AP_CUR2]], i64 16
+ // WIN64-NEXT: store i8* %[[AP_NEXT2]], i8** %[[AP]]
+ // WIN64-NEXT: bitcast i8* %[[AP_CUR2]] to { double, double }*
+ struct foo d = __builtin_va_arg(ap, struct foo);
+ // FREEBSD: %[[AP_CUR3:.*]] = load i8*, i8** %[[AP]]
+ // FREEBSD-NEXT: %[[AP_NEXT3:.*]] = getelementptr inbounds i8, i8* %[[AP_CUR3]], i64 16
+ // FREEBSD-NEXT: store i8* %[[AP_NEXT3]], i8** %[[AP]]
+ // FREEBSD-NEXT: bitcast i8* %[[AP_CUR3]] to %[[STRUCT_FOO]]*
+ // WIN64: %[[AP_CUR3:.*]] = load i8*, i8** %[[AP]]
+ // WIN64-NEXT: %[[AP_NEXT3:.*]] = getelementptr inbounds i8, i8* %[[AP_CUR3]], i64 16
+ // WIN64-NEXT: store i8* %[[AP_NEXT3]], i8** %[[AP]]
+ // WIN64-NEXT: bitcast i8* %[[AP_CUR3]] to %[[STRUCT_FOO]]*
+ __builtin_ms_va_list ap2;
+ __builtin_ms_va_copy(ap2, ap);
+ // FREEBSD: %[[AP_VAL:.*]] = load i8*, i8** %[[AP]]
+ // FREEBSD-NEXT: store i8* %[[AP_VAL]], i8** %[[AP2:.*]]
+ // WIN64: %[[AP_VAL:.*]] = load i8*, i8** %[[AP]]
+ // WIN64-NEXT: store i8* %[[AP_VAL]], i8** %[[AP2:.*]]
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-20 02:16:12 +0000