22 lines
773 B
LLVM
22 lines
773 B
LLVM
; Test that LICM works when there is not a loop-preheader
|
|
; RUN: opt < %s -licm | llvm-dis
|
|
; RUN: opt -aa-pipeline=basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,require<opt-remark-emit>,loop(licm)' < %s | llvm-dis
|
|
|
|
define void @testfunc(i32 %i.s, i1 %ifcond) {
|
|
br i1 %ifcond, label %Then, label %Else
|
|
Then: ; preds = %0
|
|
br label %Loop
|
|
Else: ; preds = %0
|
|
br label %Loop
|
|
Loop: ; preds = %Loop, %Else, %Then
|
|
%j = phi i32 [ 0, %Then ], [ 12, %Else ], [ %Next, %Loop ] ; <i32> [#uses=1]
|
|
%i = bitcast i32 %i.s to i32 ; <i32> [#uses=1]
|
|
%i2 = mul i32 %i, 17 ; <i32> [#uses=1]
|
|
%Next = add i32 %j, %i2 ; <i32> [#uses=2]
|
|
%cond = icmp eq i32 %Next, 0 ; <i1> [#uses=1]
|
|
br i1 %cond, label %Out, label %Loop
|
|
Out: ; preds = %Loop
|
|
ret void
|
|
}
|
|
|