| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -fix-irreducible -unify-loop-exits -structurizecfg -enable-new-pm=0 -S | FileCheck %s |
| define void @irreducible_mountain_bug(i1 %Pred0, i1 %Pred1, i1 %Pred2, i1 %Pred3, i1 %Pred4, i1 %Pred5, i1 %Pred6, i1 %Pred7, i1 %Pred8, i1 %Pred9, i1 %Pred10, i1 %Pred11, i1 %Pred12, i1 %Pred13) { |
| ; CHECK-LABEL: @irreducible_mountain_bug( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[PRED0_INV:%.*]] = xor i1 [[PRED0:%.*]], true |
| ; CHECK-NEXT: [[PRED1_INV:%.*]] = xor i1 [[PRED1:%.*]], true |
| ; CHECK-NEXT: [[PRED2_INV:%.*]] = xor i1 [[PRED2:%.*]], true |
| ; CHECK-NEXT: [[PRED3_INV:%.*]] = xor i1 [[PRED3:%.*]], true |
| ; CHECK-NEXT: [[PRED5_INV:%.*]] = xor i1 [[PRED5:%.*]], true |
| ; CHECK-NEXT: [[PRED4_INV:%.*]] = xor i1 [[PRED4:%.*]], true |
| ; CHECK-NEXT: [[PRED10_INV:%.*]] = xor i1 [[PRED10:%.*]], true |
| ; CHECK-NEXT: [[PRED11_INV:%.*]] = xor i1 [[PRED11:%.*]], true |
| ; CHECK-NEXT: [[PRED12_INV:%.*]] = xor i1 [[PRED12:%.*]], true |
| ; CHECK-NEXT: [[PRED13_INV:%.*]] = xor i1 [[PRED13:%.*]], true |
| ; CHECK-NEXT: br i1 [[PRED0_INV]], label [[IF_THEN:%.*]], label [[FLOW19:%.*]] |
| ; CHECK: Flow19: |
| ; CHECK-NEXT: [[TMP0:%.*]] = phi i1 [ false, [[FLOW3:%.*]] ], [ true, [[ENTRY:%.*]] ] |
| ; CHECK-NEXT: br i1 [[TMP0]], label [[IF_END:%.*]], label [[FLOW20:%.*]] |
| ; CHECK: if.end: |
| ; CHECK-NEXT: br i1 [[PRED1_INV]], label [[IF_ELSE:%.*]], label [[FLOW18:%.*]] |
| ; CHECK: Flow18: |
| ; CHECK-NEXT: [[TMP1:%.*]] = phi i1 [ false, [[IF_ELSE]] ], [ true, [[IF_END]] ] |
| ; CHECK-NEXT: br i1 [[TMP1]], label [[IF_THEN7:%.*]], label [[IF_END16:%.*]] |
| ; CHECK: if.then7: |
| ; CHECK-NEXT: br label [[IF_END16]] |
| ; CHECK: if.else: |
| ; CHECK-NEXT: br label [[FLOW18]] |
| ; CHECK: Flow20: |
| ; CHECK-NEXT: br label [[EXIT:%.*]] |
| ; CHECK: if.end16: |
| ; CHECK-NEXT: br i1 [[PRED2_INV]], label [[IF_THEN39:%.*]], label [[FLOW16:%.*]] |
| ; CHECK: Flow16: |
| ; CHECK-NEXT: [[TMP2:%.*]] = phi i1 [ false, [[FLOW5:%.*]] ], [ true, [[IF_END16]] ] |
| ; CHECK-NEXT: br i1 [[TMP2]], label [[WHILE_COND_PREHEADER:%.*]], label [[FLOW17:%.*]] |
| ; CHECK: while.cond.preheader: |
| ; CHECK-NEXT: br label [[WHILE_COND:%.*]] |
| ; CHECK: Flow17: |
| ; CHECK-NEXT: br label [[FLOW20]] |
| ; CHECK: while.cond: |
| ; CHECK-NEXT: br i1 [[PRED3_INV]], label [[LOR_RHS:%.*]], label [[FLOW12:%.*]] |
| ; CHECK: Flow7: |
| ; CHECK-NEXT: [[TMP3:%.*]] = phi i1 [ [[PRED7:%.*]], [[COND_END61:%.*]] ], [ false, [[IRR_GUARD:%.*]] ] |
| ; CHECK-NEXT: [[TMP4:%.*]] = phi i1 [ false, [[COND_END61]] ], [ true, [[IRR_GUARD]] ] |
| ; CHECK-NEXT: br i1 [[TMP4]], label [[COND_TRUE49:%.*]], label [[FLOW8:%.*]] |
| ; CHECK: cond.true49: |
| ; CHECK-NEXT: br label [[FLOW8]] |
| ; CHECK: Flow8: |
| ; CHECK-NEXT: [[TMP5:%.*]] = phi i1 [ false, [[COND_TRUE49]] ], [ true, [[FLOW7:%.*]] ] |
| ; CHECK-NEXT: [[TMP6:%.*]] = phi i1 [ [[PRED4_INV]], [[COND_TRUE49]] ], [ [[TMP3]], [[FLOW7]] ] |
| ; CHECK-NEXT: br i1 [[TMP6]], label [[WHILE_BODY63:%.*]], label [[FLOW9:%.*]] |
| ; CHECK: while.body63: |
| ; CHECK-NEXT: br i1 [[PRED5_INV]], label [[WHILE_COND47:%.*]], label [[FLOW10:%.*]] |
| ; CHECK: Flow9: |
| ; CHECK-NEXT: [[TMP7:%.*]] = phi i1 [ true, [[FLOW10]] ], [ false, [[FLOW8]] ] |
| ; CHECK-NEXT: [[TMP8:%.*]] = phi i1 [ false, [[FLOW10]] ], [ [[TMP5]], [[FLOW8]] ] |
| ; CHECK-NEXT: [[TMP9:%.*]] = phi i1 [ [[TMP15:%.*]], [[FLOW10]] ], [ true, [[FLOW8]] ] |
| ; CHECK-NEXT: [[DOTINV11:%.*]] = xor i1 [[TMP7]], true |
| ; CHECK-NEXT: [[DOTINV:%.*]] = xor i1 [[TMP8]], true |
| ; CHECK-NEXT: br i1 [[TMP9]], label [[LOOP_EXIT_GUARD1:%.*]], label [[IRR_GUARD]] |
| ; CHECK: while.cond47: |
| ; CHECK-NEXT: br label [[FLOW10]] |
| ; CHECK: cond.end61: |
| ; CHECK-NEXT: br label [[FLOW7]] |
| ; CHECK: Flow14: |
| ; CHECK-NEXT: [[TMP10:%.*]] = phi i1 [ false, [[FLOW15:%.*]] ], [ true, [[LOOP_EXIT_GUARD1]] ] |
| ; CHECK-NEXT: [[TMP11:%.*]] = phi i1 [ [[TMP14:%.*]], [[FLOW15]] ], [ [[DOTINV]], [[LOOP_EXIT_GUARD1]] ] |
| ; CHECK-NEXT: br label [[FLOW13:%.*]] |
| ; CHECK: if.then69: |
| ; CHECK-NEXT: br label [[FLOW15]] |
| ; CHECK: lor.rhs: |
| ; CHECK-NEXT: br label [[FLOW12]] |
| ; CHECK: while.end76: |
| ; CHECK-NEXT: br label [[FLOW6:%.*]] |
| ; CHECK: if.then39: |
| ; CHECK-NEXT: br i1 [[PRED10_INV]], label [[IF_END_I145:%.*]], label [[FLOW5]] |
| ; CHECK: if.end.i145: |
| ; CHECK-NEXT: br i1 [[PRED11_INV]], label [[IF_END8_I149:%.*]], label [[FLOW4:%.*]] |
| ; CHECK: if.end8.i149: |
| ; CHECK-NEXT: br label [[FLOW4]] |
| ; CHECK: if.then: |
| ; CHECK-NEXT: br i1 [[PRED12_INV]], label [[IF_END_I:%.*]], label [[FLOW3]] |
| ; CHECK: if.end.i: |
| ; CHECK-NEXT: br i1 [[PRED13_INV]], label [[IF_END8_I:%.*]], label [[FLOW:%.*]] |
| ; CHECK: if.end8.i: |
| ; CHECK-NEXT: br label [[FLOW]] |
| ; CHECK: Flow: |
| ; CHECK-NEXT: br label [[FLOW3]] |
| ; CHECK: Flow3: |
| ; CHECK-NEXT: br label [[FLOW19]] |
| ; CHECK: Flow4: |
| ; CHECK-NEXT: br label [[FLOW5]] |
| ; CHECK: Flow5: |
| ; CHECK-NEXT: br label [[FLOW16]] |
| ; CHECK: Flow6: |
| ; CHECK-NEXT: br label [[FLOW17]] |
| ; CHECK: exit: |
| ; CHECK-NEXT: ret void |
| ; CHECK: Flow12: |
| ; CHECK-NEXT: [[TMP12:%.*]] = phi i1 [ false, [[LOR_RHS]] ], [ true, [[WHILE_COND]] ] |
| ; CHECK-NEXT: [[TMP13:%.*]] = phi i1 [ [[PRED9:%.*]], [[LOR_RHS]] ], [ [[PRED3]], [[WHILE_COND]] ] |
| ; CHECK-NEXT: br i1 [[TMP13]], label [[IRR_GUARD]], label [[FLOW13]] |
| ; CHECK: irr.guard: |
| ; CHECK-NEXT: [[GUARD_COND_TRUE49:%.*]] = phi i1 [ [[PRED6:%.*]], [[FLOW9]] ], [ [[TMP12]], [[FLOW12]] ] |
| ; CHECK-NEXT: [[GUARD_COND_TRUE49_INV:%.*]] = xor i1 [[GUARD_COND_TRUE49]], true |
| ; CHECK-NEXT: br i1 [[GUARD_COND_TRUE49_INV]], label [[COND_END61]], label [[FLOW7]] |
| ; CHECK: Flow15: |
| ; CHECK-NEXT: [[TMP14]] = phi i1 [ [[PRED8:%.*]], [[IF_THEN69:%.*]] ], [ [[DOTINV]], [[LOOP_EXIT_GUARD2:%.*]] ] |
| ; CHECK-NEXT: br label [[FLOW14:%.*]] |
| ; CHECK: loop.exit.guard: |
| ; CHECK-NEXT: br i1 [[TMP16:%.*]], label [[WHILE_END76:%.*]], label [[FLOW6]] |
| ; CHECK: Flow10: |
| ; CHECK-NEXT: [[TMP15]] = phi i1 [ false, [[WHILE_COND47]] ], [ true, [[WHILE_BODY63]] ] |
| ; CHECK-NEXT: br label [[FLOW9]] |
| ; CHECK: Flow13: |
| ; CHECK-NEXT: [[TMP16]] = phi i1 [ [[TMP10]], [[FLOW14]] ], [ true, [[FLOW12]] ] |
| ; CHECK-NEXT: [[TMP17:%.*]] = phi i1 [ [[TMP11]], [[FLOW14]] ], [ true, [[FLOW12]] ] |
| ; CHECK-NEXT: br i1 [[TMP17]], label [[LOOP_EXIT_GUARD:%.*]], label [[WHILE_COND]] |
| ; CHECK: loop.exit.guard1: |
| ; CHECK-NEXT: br i1 [[DOTINV]], label [[LOOP_EXIT_GUARD2]], label [[FLOW14]] |
| ; CHECK: loop.exit.guard2: |
| ; CHECK-NEXT: br i1 [[DOTINV11]], label [[IF_THEN69]], label [[FLOW15]] |
| ; |
| entry: |
| br i1 %Pred0, label %if.end, label %if.then |
| |
| if.end: |
| br i1 %Pred1, label %if.then7, label %if.else |
| |
| if.then7: |
| br label %if.end16 |
| |
| if.else: |
| br label %if.end16 |
| |
| if.end16: |
| br i1 %Pred2, label %while.cond.preheader, label %if.then39 |
| |
| while.cond.preheader: |
| br label %while.cond |
| |
| while.cond: |
| br i1 %Pred3, label %cond.true49, label %lor.rhs |
| |
| cond.true49: |
| br i1 %Pred4, label %if.then69, label %while.body63 |
| |
| while.body63: |
| br i1 %Pred5, label %exit, label %while.cond47 |
| |
| while.cond47: |
| br i1 %Pred6, label %cond.true49, label %cond.end61 |
| |
| cond.end61: |
| br i1 %Pred7, label %while.body63, label %while.cond |
| |
| if.then69: |
| br i1 %Pred8, label %exit, label %while.cond |
| |
| lor.rhs: |
| br i1 %Pred9, label %cond.end61, label %while.end76 |
| |
| while.end76: |
| br label %exit |
| |
| if.then39: |
| br i1 %Pred10, label %exit, label %if.end.i145 |
| |
| if.end.i145: |
| br i1 %Pred11, label %exit, label %if.end8.i149 |
| |
| if.end8.i149: |
| br label %exit |
| |
| if.then: |
| br i1 %Pred12, label %exit, label %if.end.i |
| |
| if.end.i: |
| br i1 %Pred13, label %exit, label %if.end8.i |
| |
| if.end8.i: |
| br label %exit |
| |
| exit: |
| ret void |
| } |