forked from OSchip/llvm-project
18 lines
448 B
LLVM
18 lines
448 B
LLVM
; The loop canonicalization pass should guarantee that there is one backedge
|
|
; for all loops. This allows the -indvars pass to recognize the %IV
|
|
; induction variable in this testcase.
|
|
|
|
; RUN: llvm-as < %s | opt -indvars | llvm-dis | grep indvar
|
|
|
|
int %test(bool %C) {
|
|
br label %Loop
|
|
Loop:
|
|
%IV = phi uint [1, %0], [%IV2, %BE1], [%IV2, %BE2]
|
|
%IV2 = add uint %IV, 2
|
|
br bool %C, label %BE1, label %BE2
|
|
BE1:
|
|
br label %Loop
|
|
BE2:
|
|
br label %Loop
|
|
}
|