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llvm-mirror/test/Other/loop-pass-ordering.ll
Justin Bogner 5af532d89d PM: Implement a basic loop pass manager
This creates the new-style LoopPassManager and wires it up with dummy
and print passes.

This version doesn't support modifying the loop nest at all. It will
be far easier to discuss and evaluate the approaches to that with this
in place so that the boilerplate is out of the way.

llvm-svn: 261831
2016-02-25 07:23:08 +00:00

36 lines
931 B
LLVM

; RUN: opt -disable-output -debug-pass-manager \
; RUN: -passes='no-op-loop' %s 2>&1 \
; RUN: | FileCheck %s
; @f()
; / \
; loop.0 loop.1
; / \ \
; loop.0.0 loop.0.1 loop.1.0
;
; CHECK: Running pass: NoOpLoopPass on loop.1.0
; CHECK: Running pass: NoOpLoopPass on loop.1
; CHECK: Running pass: NoOpLoopPass on loop.0.0
; CHECK: Running pass: NoOpLoopPass on loop.0.1
; CHECK: Running pass: NoOpLoopPass on loop.0
define void @f() {
entry:
br label %loop.0
loop.0:
br i1 undef, label %loop.0.0, label %loop.1
loop.0.0:
br i1 undef, label %loop.0.0, label %loop.0.1
loop.0.1:
br i1 undef, label %loop.0.1, label %loop.0
loop.1:
br i1 undef, label %loop.1, label %loop.1.bb1
loop.1.bb1:
br i1 undef, label %loop.1, label %loop.1.bb2
loop.1.bb2:
br i1 undef, label %end, label %loop.1.0
loop.1.0:
br i1 undef, label %loop.1.0, label %loop.1
end:
ret void
}