blob: 4cbd757aec2293fb17c7a23c5a37b11083fad74e [file] [log] [blame]
; RUN: opt < %s -S -loop-unroll -unroll-allow-partial -unroll-max-count=1 | FileCheck %s
; Checks that unroll MaxCount is honored.
;
; CHECK-LABEL: @foo(
; CHECK-LABEL: for.body:
; CHECK-NEXT: phi
; CHECK-NEXT: getelementptr
; CHECK-NEXT: load
; CHECK-NEXT: add
; CHECK-NEXT: store
; CHECK-NEXT: add
; CHECK-NEXT: icmp
; CHECK-NEXT: br
define void @foo(i32* nocapture %a) {
entry:
br label %for.body
for.body: ; preds = %for.body, %entry
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
%arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv
%0 = load i32, i32* %arrayidx, align 4
%inc = add nsw i32 %0, 1
store i32 %inc, i32* %arrayidx, align 4
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%exitcond = icmp eq i64 %indvars.iv.next, 1024
br i1 %exitcond, label %for.end, label %for.body
for.end: ; preds = %for.body
ret void
}