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