[LoopSimplify] Regenerate test checks; NFC

For D72519.

test/Transforms/LoopSimplify/basictest.ll

@@ -1,236 +1,228 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -S -loop-simplify | FileCheck %s
 ; RUN: opt < %s -S -passes=loop-simplify | FileCheck %s
 
 ; This function should get a preheader inserted before bb3, that is jumped
 ; to by bb1 & bb2
 define void @test() {
-; CHECK-LABEL: define void @test(
+; CHECK-LABEL: @test(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    br i1 true, label [[BB1:%.*]], label [[BB2:%.*]]
+; CHECK:       bb1:
+; CHECK-NEXT:    br label [[BB3_PREHEADER:%.*]]
+; CHECK:       bb2:
+; CHECK-NEXT:    br label [[BB3_PREHEADER]]
+; CHECK:       bb3.preheader:
+; CHECK-NEXT:    br label [[BB3:%.*]]
+; CHECK:       bb3:
+; CHECK-NEXT:    br label [[BB3]]
+;
 entry:
   br i1 true, label %bb1, label %bb2
 
 bb1:
   br label %bb3
-; CHECK:      bb1:
-; CHECK-NEXT:   br label %[[PH:.*]]
 
 bb2:
   br label %bb3
-; CHECK:      bb2:
-; CHECK-NEXT:   br label %[[PH]]
 
 bb3:
   br label %bb3
-; CHECK:      [[PH]]:
-; CHECK-NEXT:   br label %bb3
-;
-; CHECK:      bb3:
-; CHECK-NEXT:   br label %bb3
 }
 
 ; Test a case where we have multiple exit blocks as successors of a single loop
 ; block that need to be made dedicated exit blocks. We also have multiple
 ; exiting edges to one of the exit blocks that all should be rewritten.
 define void @test_multiple_exits_from_single_block(i8 %a, i8* %b.ptr) {
-; CHECK-LABEL: define void @test_multiple_exits_from_single_block(
+; CHECK-LABEL: @test_multiple_exits_from_single_block(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    switch i8 [[A:%.*]], label [[LOOP_PREHEADER:%.*]] [
+; CHECK-NEXT:    i8 0, label [[EXIT_A:%.*]]
+; CHECK-NEXT:    i8 1, label [[EXIT_B:%.*]]
+; CHECK-NEXT:    ]
+; CHECK:       loop.preheader:
+; CHECK-NEXT:    br label [[LOOP:%.*]]
+; CHECK:       loop:
+; CHECK-NEXT:    [[B:%.*]] = load volatile i8, i8* [[B_PTR:%.*]]
+; CHECK-NEXT:    switch i8 [[B]], label [[LOOP_BACKEDGE:%.*]] [
+; CHECK-NEXT:    i8 0, label [[EXIT_A_LOOPEXIT:%.*]]
+; CHECK-NEXT:    i8 1, label [[EXIT_B_LOOPEXIT:%.*]]
+; CHECK-NEXT:    i8 2, label [[LOOP_BACKEDGE]]
+; CHECK-NEXT:    i8 3, label [[EXIT_A_LOOPEXIT]]
+; CHECK-NEXT:    i8 4, label [[LOOP_BACKEDGE]]
+; CHECK-NEXT:    i8 5, label [[EXIT_A_LOOPEXIT]]
+; CHECK-NEXT:    i8 6, label [[LOOP_BACKEDGE]]
+; CHECK-NEXT:    ]
+; CHECK:       loop.backedge:
+; CHECK-NEXT:    br label [[LOOP]]
+; CHECK:       exit.a.loopexit:
+; CHECK-NEXT:    br label [[EXIT_A]]
+; CHECK:       exit.a:
+; CHECK-NEXT:    ret void
+; CHECK:       exit.b.loopexit:
+; CHECK-NEXT:    br label [[EXIT_B]]
+; CHECK:       exit.b:
+; CHECK-NEXT:    ret void
+;
 entry:
   switch i8 %a, label %loop [
-    i8 0, label %exit.a
+  i8 0, label %exit.a
-    i8 1, label %exit.b
+  i8 1, label %exit.b
   ]
-; CHECK:      entry:
-; CHECK-NEXT:   switch i8 %a, label %[[PH:.*]] [
-; CHECK-NEXT:     i8 0, label %exit.a
-; CHECK-NEXT:     i8 1, label %exit.b
-; CHECK-NEXT:   ]
 
 loop:
   %b = load volatile i8, i8* %b.ptr
   switch i8 %b, label %loop [
-    i8 0, label %exit.a
+  i8 0, label %exit.a
-    i8 1, label %exit.b
+  i8 1, label %exit.b
-    i8 2, label %loop
+  i8 2, label %loop
-    i8 3, label %exit.a
+  i8 3, label %exit.a
-    i8 4, label %loop
+  i8 4, label %loop
-    i8 5, label %exit.a
+  i8 5, label %exit.a
-    i8 6, label %loop
+  i8 6, label %loop
   ]
-; CHECK:      [[PH]]:
-; CHECK-NEXT:   br label %loop
-;
-; CHECK:      loop:
-; CHECK-NEXT:   %[[B:.*]] = load volatile i8, i8* %b.ptr
-; CHECK-NEXT:   switch i8 %[[B]], label %[[BACKEDGE:.*]] [
-; CHECK-NEXT:     i8 0, label %[[LOOPEXIT_A:.*]]
-; CHECK-NEXT:     i8 1, label %[[LOOPEXIT_B:.*]]
-; CHECK-NEXT:     i8 2, label %[[BACKEDGE]]
-; CHECK-NEXT:     i8 3, label %[[LOOPEXIT_A]]
-; CHECK-NEXT:     i8 4, label %[[BACKEDGE]]
-; CHECK-NEXT:     i8 5, label %[[LOOPEXIT_A]]
-; CHECK-NEXT:     i8 6, label %[[BACKEDGE]]
-; CHECK-NEXT:   ]
-;
-; CHECK:      [[BACKEDGE]]:
-; CHECK-NEXT:   br label %loop
 
 exit.a:
   ret void
-; CHECK:      [[LOOPEXIT_A]]:
-; CHECK-NEXT:   br label %exit.a
-;
-; CHECK:      exit.a:
-; CHECK-NEXT:   ret void
 
 exit.b:
   ret void
-; CHECK:      [[LOOPEXIT_B]]:
-; CHECK-NEXT:   br label %exit.b
-;
-; CHECK:      exit.b:
-; CHECK-NEXT:   ret void
 }
 
 ; Check that we leave already dedicated exits alone when forming dedicated exit
 ; blocks.
 define void @test_pre_existing_dedicated_exits(i1 %a, i1* %ptr) {
-; CHECK-LABEL: define void @test_pre_existing_dedicated_exits(
+; CHECK-LABEL: @test_pre_existing_dedicated_exits(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    br i1 [[A:%.*]], label [[LOOP_PH:%.*]], label [[NON_DEDICATED_EXIT:%.*]]
+; CHECK:       loop.ph:
+; CHECK-NEXT:    br label [[LOOP_HEADER:%.*]]
+; CHECK:       loop.header:
+; CHECK-NEXT:    [[C1:%.*]] = load volatile i1, i1* [[PTR:%.*]]
+; CHECK-NEXT:    br i1 [[C1]], label [[LOOP_BODY1:%.*]], label [[DEDICATED_EXIT1:%.*]]
+; CHECK:       loop.body1:
+; CHECK-NEXT:    [[C2:%.*]] = load volatile i1, i1* [[PTR]]
+; CHECK-NEXT:    br i1 [[C2]], label [[LOOP_BODY2:%.*]], label [[NON_DEDICATED_EXIT_LOOPEXIT:%.*]]
+; CHECK:       loop.body2:
+; CHECK-NEXT:    [[C3:%.*]] = load volatile i1, i1* [[PTR]]
+; CHECK-NEXT:    br i1 [[C3]], label [[LOOP_BACKEDGE:%.*]], label [[DEDICATED_EXIT2:%.*]]
+; CHECK:       loop.backedge:
+; CHECK-NEXT:    br label [[LOOP_HEADER]]
+; CHECK:       dedicated_exit1:
+; CHECK-NEXT:    ret void
+; CHECK:       dedicated_exit2:
+; CHECK-NEXT:    ret void
+; CHECK:       non_dedicated_exit.loopexit:
+; CHECK-NEXT:    br label [[NON_DEDICATED_EXIT]]
+; CHECK:       non_dedicated_exit:
+; CHECK-NEXT:    ret void
+;
 entry:
   br i1 %a, label %loop.ph, label %non_dedicated_exit
-; CHECK:      entry:
-; CHECK-NEXT:   br i1 %a, label %loop.ph, label %non_dedicated_exit
 
 loop.ph:
   br label %loop.header
-; CHECK:      loop.ph:
-; CHECK-NEXT:   br label %loop.header
 
 loop.header:
   %c1 = load volatile i1, i1* %ptr
   br i1 %c1, label %loop.body1, label %dedicated_exit1
-; CHECK:      loop.header:
-; CHECK-NEXT:   %[[C1:.*]] = load volatile i1, i1* %ptr
-; CHECK-NEXT:   br i1 %[[C1]], label %loop.body1, label %dedicated_exit1
 
 loop.body1:
   %c2 = load volatile i1, i1* %ptr
   br i1 %c2, label %loop.body2, label %non_dedicated_exit
-; CHECK:      loop.body1:
-; CHECK-NEXT:   %[[C2:.*]] = load volatile i1, i1* %ptr
-; CHECK-NEXT:   br i1 %[[C2]], label %loop.body2, label %[[LOOPEXIT:.*]]
 
 loop.body2:
   %c3 = load volatile i1, i1* %ptr
   br i1 %c3, label %loop.backedge, label %dedicated_exit2
-; CHECK:      loop.body2:
-; CHECK-NEXT:   %[[C3:.*]] = load volatile i1, i1* %ptr
-; CHECK-NEXT:   br i1 %[[C3]], label %loop.backedge, label %dedicated_exit2
 
 loop.backedge:
   br label %loop.header
-; CHECK:      loop.backedge:
-; CHECK-NEXT:   br label %loop.header
 
 dedicated_exit1:
   ret void
 ; Check that there isn't a split loop exit.
-; CHECK-NOT:    br label %dedicated_exit1
-;
-; CHECK:      dedicated_exit1:
-; CHECK-NEXT:   ret void
 
 dedicated_exit2:
   ret void
 ; Check that there isn't a split loop exit.
-; CHECK-NOT:    br label %dedicated_exit2
-;
-; CHECK:      dedicated_exit2:
-; CHECK-NEXT:   ret void
 
 non_dedicated_exit:
   ret void
-; CHECK:      [[LOOPEXIT]]:
-; CHECK-NEXT:   br label %non_dedicated_exit
-;
-; CHECK:      non_dedicated_exit:
-; CHECK-NEXT:   ret void
 }
 
 ; Check that we form what dedicated exits we can even when some exits are
 ; reached via indirectbr which precludes forming dedicated exits.
 define void @test_form_some_dedicated_exits_despite_indirectbr(i8 %a, i8* %ptr, i8** %addr.ptr) {
-; CHECK-LABEL: define void @test_form_some_dedicated_exits_despite_indirectbr(
+; CHECK-LABEL: @test_form_some_dedicated_exits_despite_indirectbr(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    switch i8 [[A:%.*]], label [[LOOP_PH:%.*]] [
+; CHECK-NEXT:    i8 0, label [[EXIT_A:%.*]]
+; CHECK-NEXT:    i8 1, label [[EXIT_B:%.*]]
+; CHECK-NEXT:    i8 2, label [[EXIT_C:%.*]]
+; CHECK-NEXT:    ]
+; CHECK:       loop.ph:
+; CHECK-NEXT:    br label [[LOOP_HEADER:%.*]]
+; CHECK:       loop.header:
+; CHECK-NEXT:    [[ADDR1:%.*]] = load volatile i8*, i8** [[ADDR_PTR:%.*]]
+; CHECK-NEXT:    indirectbr i8* [[ADDR1]], [label [[LOOP_BODY1:%.*]], label %exit.a]
+; CHECK:       loop.body1:
+; CHECK-NEXT:    [[B:%.*]] = load volatile i8, i8* [[PTR:%.*]]
+; CHECK-NEXT:    switch i8 [[B]], label [[LOOP_BODY2:%.*]] [
+; CHECK-NEXT:    i8 0, label [[EXIT_A]]
+; CHECK-NEXT:    i8 1, label [[EXIT_B_LOOPEXIT:%.*]]
+; CHECK-NEXT:    i8 2, label [[EXIT_C]]
+; CHECK-NEXT:    ]
+; CHECK:       loop.body2:
+; CHECK-NEXT:    [[ADDR2:%.*]] = load volatile i8*, i8** [[ADDR_PTR]]
+; CHECK-NEXT:    indirectbr i8* [[ADDR2]], [label [[LOOP_BACKEDGE:%.*]], label %exit.c]
+; CHECK:       loop.backedge:
+; CHECK-NEXT:    br label [[LOOP_HEADER]]
+; CHECK:       exit.a:
+; CHECK-NEXT:    ret void
+; CHECK:       exit.b.loopexit:
+; CHECK-NEXT:    br label [[EXIT_B]]
+; CHECK:       exit.b:
+; CHECK-NEXT:    ret void
+; CHECK:       exit.c:
+; CHECK-NEXT:    ret void
+;
 entry:
   switch i8 %a, label %loop.ph [
-    i8 0, label %exit.a
+  i8 0, label %exit.a
-    i8 1, label %exit.b
+  i8 1, label %exit.b
-    i8 2, label %exit.c
+  i8 2, label %exit.c
   ]
-; CHECK:      entry:
-; CHECK-NEXT:   switch i8 %a, label %loop.ph [
-; CHECK-NEXT:     i8 0, label %exit.a
-; CHECK-NEXT:     i8 1, label %exit.b
-; CHECK-NEXT:     i8 2, label %exit.c
-; CHECK-NEXT:   ]
 
 loop.ph:
   br label %loop.header
-; CHECK:      loop.ph:
-; CHECK-NEXT:   br label %loop.header
 
 loop.header:
   %addr1 = load volatile i8*, i8** %addr.ptr
   indirectbr i8* %addr1, [label %loop.body1, label %exit.a]
-; CHECK:      loop.header:
-; CHECK-NEXT:   %[[ADDR1:.*]] = load volatile i8*, i8** %addr.ptr
-; CHECK-NEXT:   indirectbr i8* %[[ADDR1]], [label %loop.body1, label %exit.a]
 
 loop.body1:
   %b = load volatile i8, i8* %ptr
   switch i8 %b, label %loop.body2 [
-    i8 0, label %exit.a
+  i8 0, label %exit.a
-    i8 1, label %exit.b
+  i8 1, label %exit.b
-    i8 2, label %exit.c
+  i8 2, label %exit.c
   ]
-; CHECK:      loop.body1:
-; CHECK-NEXT:   %[[B:.*]] = load volatile i8, i8* %ptr
-; CHECK-NEXT:   switch i8 %[[B]], label %loop.body2 [
-; CHECK-NEXT:     i8 0, label %exit.a
-; CHECK-NEXT:     i8 1, label %[[LOOPEXIT:.*]]
-; CHECK-NEXT:     i8 2, label %exit.c
-; CHECK-NEXT:   ]
 
 loop.body2:
   %addr2 = load volatile i8*, i8** %addr.ptr
   indirectbr i8* %addr2, [label %loop.backedge, label %exit.c]
-; CHECK:      loop.body2:
-; CHECK-NEXT:   %[[ADDR2:.*]] = load volatile i8*, i8** %addr.ptr
-; CHECK-NEXT:   indirectbr i8* %[[ADDR2]], [label %loop.backedge, label %exit.c]
 
 loop.backedge:
   br label %loop.header
-; CHECK:      loop.backedge:
-; CHECK-NEXT:   br label %loop.header
 
 exit.a:
   ret void
 ; Check that there isn't a split loop exit.
-; CHECK-NOT:    br label %exit.a
-;
-; CHECK:      exit.a:
-; CHECK-NEXT:   ret void
 
 exit.b:
   ret void
-; CHECK:      [[LOOPEXIT]]:
-; CHECK-NEXT:   br label %exit.b
-;
-; CHECK:      exit.b:
-; CHECK-NEXT:   ret void
 
 exit.c:
   ret void
 ; Check that there isn't a split loop exit.
-; CHECK-NOT:    br label %exit.c
-;
-; CHECK:      exit.c:
-; CHECK-NEXT:   ret void
 }