llvm/test/tools/llvm-extract/recursive.ll
Keno Fischer 1f6fa0f45a [llvm-extract] Add option for recursive extraction
Summary:
Particularly, with --delete, this can be very useful for testing
new optimizations on some hotspots, without having to run it on the whole
application. E.g. as such:
```
llvm-extract app.bc --recursive --rfunc .*hotspot.* > hotspot.bc
llvm-extract app.bc --recursive --delete --rfunc .*hotspot.* > residual.bc
llc -filetype=obj residual.bc > residual.o
llc -filetype=obj hotspot.bc > hotspot.o
cc -o app residual.o hotspot.o
```

Reviewed By: davide
Differential Revision: https://reviews.llvm.org/D31722

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@299706 91177308-0d34-0410-b5e6-96231b3b80d8
2017-04-06 20:51:40 +00:00

33 lines
681 B
LLVM

; RUN: llvm-extract -func=a --recursive %s -S | FileCheck --check-prefix=CHECK-AB %s
; RUN: llvm-extract -func=a --recursive --delete %s -S | FileCheck --check-prefix=CHECK-CD %s
; RUN: llvm-extract -func=d --recursive %s -S | FileCheck --check-prefix=CHECK-CD %s
; CHECK-AB: define void @a
; CHECK-AB: define void @b
; CHECK-AB-NOT: define void @c
; CHECK-AB-NOT: define void @d
; CHECK-CD-NOT: define void @a
; CHECK-CD-NOT: define void @b
; CHECK-CD: define void @c
; CHECK-CD: define void @d
define void @a() {
call void @b()
ret void
}
define void @b() {
ret void
}
define void @c() {
call void @d()
ret void
}
define void @d() {
call void @c()
ret void
}