89 lines
2.1 KiB
LLVM
89 lines
2.1 KiB
LLVM
; RUN: opt -passes=attributor-cgscc -attributor-annotate-decl-cs -attributor-allow-shallow-wrappers -S < %s | FileCheck %s --check-prefix=CHECK
|
|
|
|
; TEST 1: simple test, without argument
|
|
; A wrapper will be generated for this function, Check the wrapper first
|
|
; CHECK-NOT: Function Attrs:
|
|
; CHECK: define linkonce i32 @inner1()
|
|
; CHECK: tail call i32 @0()
|
|
; CHECK: ret
|
|
;
|
|
; Check the original function, which is wrapped and becomes anonymous
|
|
; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
|
|
; CHECK: define internal i32 @0()
|
|
; CHECK: %a = alloca i32
|
|
; CHECK: store i32 1, i32* %a
|
|
; CHECK: %b = load i32, i32* %a
|
|
; CHECK: ret i32 %b
|
|
define linkonce i32 @inner1() {
|
|
entry:
|
|
%a = alloca i32
|
|
store i32 1, i32* %a
|
|
%b = load i32, i32* %a
|
|
ret i32 %b
|
|
}
|
|
|
|
; Check for call
|
|
; CHECK: define i32 @outer1
|
|
; CHECK: call i32 @inner1
|
|
; CHECK: ret
|
|
define i32 @outer1() {
|
|
entry:
|
|
%ret = call i32 @inner1()
|
|
ret i32 %ret
|
|
}
|
|
|
|
; TEST 2: with argument
|
|
; CHECK-NOT: Function Attrs
|
|
; CHECK: define linkonce i32 @inner2(i32 %a, i32 %b)
|
|
; CHECK: tail call i32 @1(i32 %a, i32 %b)
|
|
; CHECK: ret
|
|
;
|
|
; CHECK: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
|
|
; CHECK: define internal i32 @1(i32 %a, i32 %b)
|
|
; CHECK: %c = add i32 %a, %b
|
|
; CHECK: ret i32 %c
|
|
define linkonce i32 @inner2(i32 %a, i32 %b) {
|
|
entry:
|
|
%c = add i32 %a, %b
|
|
ret i32 %c
|
|
}
|
|
|
|
; CHECK: define i32 @outer2
|
|
; CHECK: call i32 @inner2
|
|
; CHECK: ret
|
|
define i32 @outer2() {
|
|
entry:
|
|
%ret = call i32 @inner2(i32 1, i32 2)
|
|
ret i32 %ret
|
|
}
|
|
|
|
; TEST 3: check nocurse
|
|
; This function calls itself, there will be no attribute
|
|
; CHECK-NOT: Function Attrs
|
|
; CHECK: define linkonce i32 @inner3(i32 %0)
|
|
; CHECK: tail call i32 @2(i32 %0)
|
|
; CHECK: ret
|
|
;
|
|
; CHECK-NOT: Function Attrs:
|
|
; CHECK: define internal i32 @2(i32 %0)
|
|
define linkonce i32 @inner3(i32) {
|
|
entry:
|
|
%1 = alloca i32
|
|
store i32 %0, i32* %1
|
|
br label %2
|
|
2:
|
|
%3 = load i32, i32* %1
|
|
%4 = icmp slt i32 %3, 4
|
|
br i1 %4, label %5, label %9
|
|
5:
|
|
%6 = load i32, i32* %1
|
|
%7 = add nsw i32 %6, 1
|
|
%8 = call i32 @inner3(i32 %7)
|
|
store i32 %8, i32* %1
|
|
br label %2
|
|
9:
|
|
%10 = load i32, i32* %1
|
|
ret i32 %10
|
|
}
|
|
|