59 lines
1.7 KiB
LLVM
59 lines
1.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt -S -loop-simplifycfg -verify-scev < %s | FileCheck %s
|
|
; RUN: opt -S -loop-simplifycfg -verify-scev -enable-mssa-loop-dependency=true -verify-memoryssa < %s | FileCheck %s
|
|
|
|
; Verify that the scev information is still valid. Verification should not fail
|
|
|
|
define void @t_run_test() {
|
|
; CHECK-LABEL: @t_run_test(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: br label %[[LOOP_PH:.*]]
|
|
; CHECK: [[LOOP_PH]]:
|
|
; CHECK-NEXT: br label %[[LOOP_BODY:.*]]
|
|
; CHECK: [[LOOP_BODY]]:
|
|
; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, %[[LOOP_PH]] ], [ [[INC:%.*]], %[[LOOP_BODY]] ]
|
|
; CHECK-NEXT: [[INC]] = add i32 [[IV]], 1
|
|
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[INC]], 10
|
|
; CHECK-NEXT: br i1 [[CMP]], label %[[LOOP_BODY]], label %[[EXIT:.*]]
|
|
; CHECK: [[EXIT]]:
|
|
; CHECK-NEXT: br label %[[LOOP_BODY2:.*]]
|
|
; CHECK: [[LOOP_BODY2]]:
|
|
; CHECK-NEXT: [[IV2:%.*]] = phi i32 [ 0, %[[EXIT]] ], [ [[INC2:%.*]], %[[LOOP_BODY2]] ]
|
|
; CHECK-NEXT: [[INC2]] = add i32 [[IV2]], 1
|
|
; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[INC2]], 10
|
|
; CHECK-NEXT: br i1 [[CMP2]], label %[[LOOP_BODY2]], label %[[EXIT2:.*]]
|
|
; CHECK: [[EXIT2]]:
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
entry:
|
|
br label %loop.ph
|
|
|
|
loop.ph:
|
|
br label %loop.header
|
|
|
|
loop.header:
|
|
%iv = phi i32 [0, %loop.ph], [%inc, %loop.body]
|
|
br label %loop.body1
|
|
|
|
loop.body1:
|
|
br label %loop.body
|
|
|
|
loop.body:
|
|
%inc = add i32 %iv, 1
|
|
%cmp = icmp ult i32 %inc, 10
|
|
br i1 %cmp, label %loop.header, label %exit
|
|
|
|
exit:
|
|
br label %loop.body2
|
|
|
|
loop.body2:
|
|
%iv2 = phi i32 [0, %exit], [%inc2, %loop.body2]
|
|
%inc2 = add i32 %iv2, 1
|
|
%cmp2 = icmp ult i32 %inc2, 10
|
|
br i1 %cmp2, label %loop.body2, label %exit2
|
|
|
|
exit2:
|
|
ret void
|
|
}
|
|
|