mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 04:02:41 +01:00
54 lines
690 B
LLVM
54 lines
690 B
LLVM
implementation
|
|
|
|
;; This is an irreducible flow graph
|
|
|
|
|
|
void "irreducible"(bool %cond)
|
|
begin
|
|
br bool %cond, label %X, label %Y
|
|
|
|
X:
|
|
br label %Y
|
|
Y:
|
|
br label %X
|
|
end
|
|
|
|
;; This is a pair of loops that share the same header
|
|
|
|
void "sharedheader"(bool %cond)
|
|
begin
|
|
br label %A
|
|
A:
|
|
br bool %cond, label %X, label %Y
|
|
|
|
X:
|
|
br label %A
|
|
Y:
|
|
br label %A
|
|
end
|
|
|
|
;; This is a simple nested loop
|
|
void "nested"(bool %cond1, bool %cond2, bool %cond3)
|
|
begin
|
|
br label %Loop1
|
|
|
|
Loop1:
|
|
br label %Loop2
|
|
|
|
Loop2:
|
|
br label %Loop3
|
|
|
|
Loop3:
|
|
br bool %cond3, label %Loop3, label %L3Exit
|
|
|
|
L3Exit:
|
|
br bool %cond2, label %Loop2, label %L2Exit
|
|
|
|
L2Exit:
|
|
br bool %cond1, label %Loop1, label %L1Exit
|
|
|
|
L1Exit:
|
|
ret void
|
|
end
|
|
|