forked from OSchip/llvm-project
36 lines
812 B
LLVM
36 lines
812 B
LLVM
; RUN: opt < %s -S -loop-unroll -unroll-allow-partial | FileCheck %s
|
|
; Loop size = 3, when the function has the optsize attribute, the
|
|
; OptSizeUnrollThreshold, i.e. 50, is used, hence the loop should be unrolled
|
|
; by 16 times because 3 * 16 < 50.
|
|
define void @unroll_opt_for_size() nounwind optsize {
|
|
entry:
|
|
br label %loop
|
|
|
|
loop:
|
|
%iv = phi i32 [ 0, %entry ], [ %inc, %loop ]
|
|
%inc = add i32 %iv, 1
|
|
%exitcnd = icmp uge i32 %inc, 1024
|
|
br i1 %exitcnd, label %exit, label %loop
|
|
|
|
exit:
|
|
ret void
|
|
}
|
|
|
|
; CHECK: add
|
|
; CHECK-NEXT: add
|
|
; CHECK-NEXT: add
|
|
; CHECK-NEXT: add
|
|
; CHECK-NEXT: add
|
|
; CHECK-NEXT: add
|
|
; CHECK-NEXT: add
|
|
; CHECK-NEXT: add
|
|
; CHECK-NEXT: add
|
|
; CHECK-NEXT: add
|
|
; CHECK-NEXT: add
|
|
; CHECK-NEXT: add
|
|
; CHECK-NEXT: add
|
|
; CHECK-NEXT: add
|
|
; CHECK-NEXT: add
|
|
; CHECK-NEXT: add
|
|
; CHECK-NEXT: icmp
|