| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -aa-pipeline=basic-aa -passes=indvars,indvars -S -verify-loop-lcssa %s | FileCheck %s |
| |
| ; Make sure SCEVExpander does not crash and introduce unnecessary LCSSA PHI nodes. |
| ; The tests are a collection of cases with crashes when preserving LCSSA PHI |
| ; nodes directly in SCEVExpander. |
| |
| declare i1 @cond() readnone |
| |
| define void @test1(i8 %x, [512 x i8]* %ptr) { |
| ; CHECK-LABEL: @test1( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br label [[LAND_LHS_TRUE:%.*]] |
| ; CHECK: land.lhs.true: |
| ; CHECK-NEXT: br label [[WHILE_COND22:%.*]] |
| ; CHECK: while.cond22: |
| ; CHECK-NEXT: [[C_1:%.*]] = call i1 @cond() |
| ; CHECK-NEXT: br i1 [[C_1]], label [[WHILE_COND22]], label [[WHILE_COND29_PREHEADER:%.*]] |
| ; CHECK: while.cond29.preheader: |
| ; CHECK-NEXT: br label [[WHILE_BODY35:%.*]] |
| ; CHECK: while.body35: |
| ; CHECK-NEXT: [[I_1107:%.*]] = phi i32 [ [[I_9:%.*]], [[IF_END224:%.*]] ], [ 0, [[WHILE_COND29_PREHEADER]] ] |
| ; CHECK-NEXT: br label [[WHILE_COND192:%.*]] |
| ; CHECK: while.cond192: |
| ; CHECK-NEXT: switch i8 [[X:%.*]], label [[WHILE_BODY205:%.*]] [ |
| ; CHECK-NEXT: i8 59, label [[WHILE_COND215_PREHEADER:%.*]] |
| ; CHECK-NEXT: i8 10, label [[IF_END224_LOOPEXIT1:%.*]] |
| ; CHECK-NEXT: ] |
| ; CHECK: while.cond215.preheader: |
| ; CHECK-NEXT: br label [[WHILE_COND215:%.*]] |
| ; CHECK: while.body205: |
| ; CHECK-NEXT: br label [[WHILE_COND192]] |
| ; CHECK: while.cond215: |
| ; CHECK-NEXT: [[I_8_IN:%.*]] = phi i32 [ [[I_8:%.*]], [[WHILE_COND215]] ], [ [[I_1107]], [[WHILE_COND215_PREHEADER]] ] |
| ; CHECK-NEXT: [[I_8]] = add nsw i32 [[I_8_IN]], 1 |
| ; CHECK-NEXT: [[IDXPROM216:%.*]] = sext i32 [[I_8]] to i64 |
| ; CHECK-NEXT: [[ARRAYIDX217:%.*]] = getelementptr inbounds [512 x i8], [512 x i8]* [[PTR:%.*]], i64 0, i64 [[IDXPROM216]] |
| ; CHECK-NEXT: [[C_2:%.*]] = call i1 @cond() |
| ; CHECK-NEXT: br i1 [[C_2]], label [[WHILE_COND215]], label [[IF_END224_LOOPEXIT:%.*]] |
| ; CHECK: if.end224.loopexit: |
| ; CHECK-NEXT: [[I_8_LCSSA:%.*]] = phi i32 [ [[I_8]], [[WHILE_COND215]] ] |
| ; CHECK-NEXT: br label [[IF_END224]] |
| ; CHECK: if.end224.loopexit1: |
| ; CHECK-NEXT: br label [[IF_END224]] |
| ; CHECK: if.end224: |
| ; CHECK-NEXT: [[I_9]] = phi i32 [ [[I_8_LCSSA]], [[IF_END224_LOOPEXIT]] ], [ [[I_1107]], [[IF_END224_LOOPEXIT1]] ] |
| ; CHECK-NEXT: [[C_3:%.*]] = call i1 @cond() |
| ; CHECK-NEXT: br i1 [[C_3]], label [[WHILE_END225:%.*]], label [[WHILE_BODY35]] |
| ; CHECK: while.end225: |
| ; CHECK-NEXT: br label [[LAND_LHS_TRUE]] |
| ; |
| entry: |
| br label %land.lhs.true |
| |
| land.lhs.true: ; preds = %while.end225, %entry |
| br label %while.cond22 |
| |
| while.cond22: ; preds = %while.cond22, %land.lhs.true |
| %c.1 = call i1 @cond() |
| br i1 %c.1, label %while.cond22, label %while.cond29.preheader |
| |
| while.cond29.preheader: ; preds = %while.cond22 |
| br label %while.body35 |
| |
| while.body35: ; preds = %if.end224, %while.cond29.preheader |
| %i.1107 = phi i32 [ %i.9, %if.end224 ], [ 0, %while.cond29.preheader ] |
| br label %while.cond192 |
| |
| while.cond192: ; preds = %while.body205, %while.body35 |
| %i.7 = phi i32 [ %i.1107, %while.body35 ], [ %inc206, %while.body205 ] |
| switch i8 %x, label %while.body205 [ |
| i8 59, label %while.cond215 |
| i8 10, label %if.end224 |
| ] |
| |
| while.body205: ; preds = %while.cond192 |
| %inc206 = add nsw i32 %i.7, 1 |
| br label %while.cond192 |
| |
| while.cond215: ; preds = %while.cond215, %while.cond192 |
| %i.8.in = phi i32 [ %i.8, %while.cond215 ], [ %i.7, %while.cond192 ] |
| %i.8 = add nsw i32 %i.8.in, 1 |
| %idxprom216 = sext i32 %i.8 to i64 |
| %arrayidx217 = getelementptr inbounds [512 x i8], [512 x i8]* %ptr, i64 0, i64 %idxprom216 |
| %c.2 = call i1 @cond() |
| br i1 %c.2, label %while.cond215, label %if.end224 |
| |
| if.end224: ; preds = %while.cond215, %while.cond192 |
| %i.9 = phi i32 [ %i.8, %while.cond215 ], [ %i.7, %while.cond192 ] |
| %c.3 = call i1 @cond() |
| br i1 %c.3, label %while.end225, label %while.body35 |
| |
| while.end225: ; preds = %if.end224 |
| br label %land.lhs.true |
| } |
| |
| define void @test2(i16 %x) { |
| ; CHECK-LABEL: @test2( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[C_1:%.*]] = call i1 @cond() |
| ; CHECK-NEXT: br i1 [[C_1]], label [[FOR_COND_PREHEADER:%.*]], label [[RETURN:%.*]] |
| ; CHECK: for.cond.preheader: |
| ; CHECK-NEXT: br label [[FOR_COND:%.*]] |
| ; CHECK: for.cond: |
| ; CHECK-NEXT: switch i16 [[X:%.*]], label [[RETURN_LOOPEXIT1:%.*]] [ |
| ; CHECK-NEXT: i16 41, label [[FOR_END:%.*]] |
| ; CHECK-NEXT: i16 43, label [[FOR_COND]] |
| ; CHECK-NEXT: ] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: [[I_0_LCSSA2:%.*]] = phi i32 [ 0, [[FOR_COND]] ] |
| ; CHECK-NEXT: [[CMP8243:%.*]] = icmp sgt i32 [[I_0_LCSSA2]], 0 |
| ; CHECK-NEXT: br i1 [[CMP8243]], label [[FOR_BODY84_PREHEADER:%.*]], label [[RETURN]] |
| ; CHECK: for.body84.preheader: |
| ; CHECK-NEXT: br label [[FOR_BODY84:%.*]] |
| ; CHECK: for.body84: |
| ; CHECK-NEXT: [[C_2:%.*]] = call i1 @cond() |
| ; CHECK-NEXT: br i1 [[C_2]], label [[IF_END106:%.*]], label [[RETURN_LOOPEXIT:%.*]] |
| ; CHECK: if.end106: |
| ; CHECK-NEXT: br i1 false, label [[FOR_BODY84]], label [[RETURN_LOOPEXIT]] |
| ; CHECK: return.loopexit: |
| ; CHECK-NEXT: br label [[RETURN]] |
| ; CHECK: return.loopexit1: |
| ; CHECK-NEXT: br label [[RETURN]] |
| ; CHECK: return: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| %c.1 = call i1 @cond() |
| br i1 %c.1, label %for.cond, label %return |
| |
| for.cond: ; preds = %for.cond, %entry |
| %i.0 = phi i32 [ %sub, %for.cond ], [ 0, %entry ] |
| %sub = add nsw i32 %i.0, -1 |
| switch i16 %x, label %return [ |
| i16 41, label %for.end |
| i16 43, label %for.cond |
| ] |
| |
| for.end: ; preds = %for.cond |
| %cmp8243 = icmp sgt i32 %i.0, 0 |
| br i1 %cmp8243, label %for.body84, label %return |
| |
| for.body84: ; preds = %if.end106, %for.end |
| %i.144 = phi i32 [ %inc, %if.end106 ], [ 0, %for.end ] |
| %c.2 = call i1 @cond() |
| br i1 %c.2, label %if.end106, label %return |
| |
| if.end106: ; preds = %for.body84 |
| %inc = add nuw nsw i32 %i.144, 1 |
| %cmp82 = icmp slt i32 %inc, %i.0 |
| br i1 %cmp82, label %for.body84, label %return |
| |
| return: ; preds = %if.end106, %for.body84, %for.end, %for.cond, %entry |
| ret void |
| } |
| |
| declare i32 @get.i32() readnone |
| |
| define void @test3(i32* %ptr) { |
| ; CHECK-LABEL: @test3( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br label [[WHILE_BODY:%.*]] |
| ; CHECK: while.body: |
| ; CHECK-NEXT: br label [[FOR_BODY1208:%.*]] |
| ; CHECK: for.body1208: |
| ; CHECK-NEXT: [[M_0804:%.*]] = phi i32 [ 1, [[WHILE_BODY]] ], [ [[INC1499:%.*]], [[FOR_INC1498:%.*]] ] |
| ; CHECK-NEXT: [[V:%.*]] = call i32 @get.i32() |
| ; CHECK-NEXT: [[CMP1358:%.*]] = icmp eq i32 [[V]], 0 |
| ; CHECK-NEXT: br i1 [[CMP1358]], label [[IF_THEN1360:%.*]], label [[FOR_INC1498]] |
| ; CHECK: if.then1360: |
| ; CHECK-NEXT: [[M_0804_LCSSA:%.*]] = phi i32 [ [[M_0804]], [[FOR_BODY1208]] ] |
| ; CHECK-NEXT: br label [[FOR_COND1390:%.*]] |
| ; CHECK: for.cond1390: |
| ; CHECK-NEXT: [[M_2_IN:%.*]] = phi i32 [ [[M_0804_LCSSA]], [[IF_THEN1360]] ], [ 0, [[FOR_BODY1394:%.*]] ] |
| ; CHECK-NEXT: [[C_2:%.*]] = call i1 @cond() |
| ; CHECK-NEXT: br i1 [[C_2]], label [[FOR_BODY1394]], label [[FOR_END1469:%.*]] |
| ; CHECK: for.body1394: |
| ; CHECK-NEXT: br label [[FOR_COND1390]] |
| ; CHECK: for.end1469: |
| ; CHECK-NEXT: [[M_2_IN_LCSSA:%.*]] = phi i32 [ [[M_2_IN]], [[FOR_COND1390]] ] |
| ; CHECK-NEXT: store i32 [[M_2_IN_LCSSA]], i32* [[PTR:%.*]], align 4 |
| ; CHECK-NEXT: br label [[WHILE_BODY]] |
| ; CHECK: for.inc1498: |
| ; CHECK-NEXT: [[INC1499]] = add nuw nsw i32 [[M_0804]], 1 |
| ; CHECK-NEXT: br label [[FOR_BODY1208]] |
| ; |
| entry: |
| br label %while.body |
| |
| while.body: ; preds = %for.end1469, %entry |
| br label %for.body1208 |
| |
| for.body1208: ; preds = %for.inc1498, %while.body |
| %m.0804 = phi i32 [ 1, %while.body ], [ %inc1499, %for.inc1498 ] |
| %v = call i32 @get.i32() |
| %cmp1358 = icmp eq i32 %v, 0 |
| br i1 %cmp1358, label %if.then1360, label %for.inc1498 |
| |
| if.then1360: ; preds = %for.body1208 |
| br label %for.cond1390 |
| |
| for.cond1390: ; preds = %for.body1394, %if.then1360 |
| %m.2.in = phi i32 [ %m.0804, %if.then1360 ], [ 0, %for.body1394 ] |
| %c.2 = call i1 @cond() |
| br i1 %c.2, label %for.body1394, label %for.end1469 |
| |
| for.body1394: ; preds = %for.cond1390 |
| br label %for.cond1390 |
| |
| for.end1469: ; preds = %for.cond1390 |
| store i32 %m.2.in, i32* %ptr, align 4 |
| br label %while.body |
| |
| for.inc1498: ; preds = %for.body1208 |
| %inc1499 = add nuw nsw i32 %m.0804, 1 |
| br label %for.body1208 |
| } |
| |
| define void @test4(i32* %ptr) { |
| ; CHECK-LABEL: @test4( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br label [[WHILE_BODY:%.*]] |
| ; CHECK: while.body: |
| ; CHECK-NEXT: br label [[FOR_COND1204_PREHEADER:%.*]] |
| ; CHECK: for.cond1204.preheader: |
| ; CHECK-NEXT: [[C_1:%.*]] = call i1 @cond() |
| ; CHECK-NEXT: br i1 [[C_1]], label [[IF_THEN1504:%.*]], label [[FOR_BODY1208_LR_PH:%.*]] |
| ; CHECK: for.body1208.lr.ph: |
| ; CHECK-NEXT: br label [[FOR_BODY1208:%.*]] |
| ; CHECK: for.body1208: |
| ; CHECK-NEXT: [[TMP0:%.*]] = phi i32 [ 0, [[FOR_BODY1208_LR_PH]] ], [ [[TMP1:%.*]], [[FOR_INC1498:%.*]] ] |
| ; CHECK-NEXT: [[M_0804:%.*]] = phi i32 [ 1, [[FOR_BODY1208_LR_PH]] ], [ [[INC1499:%.*]], [[FOR_INC1498]] ] |
| ; CHECK-NEXT: [[IDXPROM1212:%.*]] = zext i32 [[M_0804]] to i64 |
| ; CHECK-NEXT: [[V:%.*]] = call i32 @get.i32() |
| ; CHECK-NEXT: [[CMP1215:%.*]] = icmp eq i32 0, [[V]] |
| ; CHECK-NEXT: [[YPOS1223:%.*]] = getelementptr inbounds i32, i32* [[PTR:%.*]], i64 [[IDXPROM1212]] |
| ; CHECK-NEXT: br i1 [[CMP1215]], label [[IF_THEN1217:%.*]], label [[IF_ELSE1351:%.*]] |
| ; CHECK: if.then1217: |
| ; CHECK-NEXT: [[M_0804_LCSSA:%.*]] = phi i32 [ [[M_0804]], [[FOR_BODY1208]] ] |
| ; CHECK-NEXT: br label [[FOR_COND1247:%.*]] |
| ; CHECK: for.cond1247: |
| ; CHECK-NEXT: [[M_1_IN:%.*]] = phi i32 [ [[M_0804_LCSSA]], [[IF_THEN1217]] ], [ [[M_1:%.*]], [[IF_THEN1260:%.*]] ] |
| ; CHECK-NEXT: [[M_1]] = add nuw nsw i32 [[M_1_IN]], 1 |
| ; CHECK-NEXT: br label [[FOR_BODY1251:%.*]] |
| ; CHECK: for.body1251: |
| ; CHECK-NEXT: [[IDXPROM1255:%.*]] = zext i32 [[M_1]] to i64 |
| ; CHECK-NEXT: [[XPOS1257:%.*]] = getelementptr inbounds i32, i32* [[PTR]], i64 [[IDXPROM1255]] |
| ; CHECK-NEXT: [[C_2:%.*]] = call i1 @cond() |
| ; CHECK-NEXT: br i1 [[C_2]], label [[IF_THEN1260]], label [[FOR_END1326:%.*]] |
| ; CHECK: if.then1260: |
| ; CHECK-NEXT: br label [[FOR_COND1247]] |
| ; CHECK: for.end1326: |
| ; CHECK-NEXT: br label [[IF_END1824:%.*]] |
| ; CHECK: if.else1351: |
| ; CHECK-NEXT: [[V_2:%.*]] = call i32 @get.i32() |
| ; CHECK-NEXT: [[CMP1358:%.*]] = icmp eq i32 [[V_2]], 0 |
| ; CHECK-NEXT: br i1 [[CMP1358]], label [[IF_THEN1360:%.*]], label [[FOR_INC1498]] |
| ; CHECK: if.then1360: |
| ; CHECK-NEXT: [[DOTLCSSA2:%.*]] = phi i32 [ [[TMP0]], [[IF_ELSE1351]] ] |
| ; CHECK-NEXT: [[M_0804_LCSSA1:%.*]] = phi i32 [ [[M_0804]], [[IF_ELSE1351]] ] |
| ; CHECK-NEXT: [[CMP1392:%.*]] = icmp slt i32 [[M_0804_LCSSA1]], [[DOTLCSSA2]] |
| ; CHECK-NEXT: unreachable |
| ; CHECK: for.inc1498: |
| ; CHECK-NEXT: [[INC1499]] = add nuw nsw i32 [[M_0804]], 1 |
| ; CHECK-NEXT: [[TMP1]] = load i32, i32* [[PTR]], align 8 |
| ; CHECK-NEXT: br label [[FOR_BODY1208]] |
| ; CHECK: if.then1504: |
| ; CHECK-NEXT: unreachable |
| ; CHECK: if.end1824: |
| ; CHECK-NEXT: br label [[WHILE_BODY]] |
| ; |
| entry: |
| br label %while.body |
| |
| while.body: ; preds = %if.end1824, %entry |
| br label %for.cond1204.preheader |
| |
| for.cond1204.preheader: ; preds = %while.body |
| %c.1 = call i1 @cond() |
| br i1 %c.1, label %if.then1504, label %for.body1208.lr.ph |
| |
| for.body1208.lr.ph: ; preds = %for.cond1204.preheader |
| br label %for.body1208 |
| |
| for.body1208: ; preds = %for.inc1498, %for.body1208.lr.ph |
| %0 = phi i32 [ 0, %for.body1208.lr.ph ], [ %1, %for.inc1498 ] |
| %m.0804 = phi i32 [ 1, %for.body1208.lr.ph ], [ %inc1499, %for.inc1498 ] |
| %idxprom1212 = zext i32 %m.0804 to i64 |
| %v = call i32 @get.i32() |
| %cmp1215 = icmp eq i32 0, %v |
| %ypos1223 = getelementptr inbounds i32, i32* %ptr , i64 %idxprom1212 |
| br i1 %cmp1215, label %if.then1217, label %if.else1351 |
| |
| if.then1217: ; preds = %for.body1208 |
| br label %for.cond1247 |
| |
| for.cond1247: ; preds = %if.then1260, %if.then1217 |
| %m.1.in = phi i32 [ %m.0804, %if.then1217 ], [ %m.1, %if.then1260 ] |
| %m.1 = add nuw nsw i32 %m.1.in, 1 |
| %cmp1249 = icmp slt i32 %m.1.in, %0 |
| br label %for.body1251 |
| |
| for.body1251: ; preds = %for.cond1247 |
| %idxprom1255 = zext i32 %m.1 to i64 |
| %xpos1257 = getelementptr inbounds i32, i32* %ptr, i64 %idxprom1255 |
| %c.2 = call i1 @cond() |
| br i1 %c.2, label %if.then1260, label %for.end1326 |
| |
| if.then1260: ; preds = %for.body1251 |
| br label %for.cond1247 |
| |
| for.end1326: ; preds = %for.body1251 |
| br label %if.end1824 |
| |
| if.else1351: ; preds = %for.body1208 |
| %v.2 = call i32 @get.i32() |
| %cmp1358 = icmp eq i32 %v.2, 0 |
| br i1 %cmp1358, label %if.then1360, label %for.inc1498 |
| |
| if.then1360: ; preds = %if.else1351 |
| %cmp1392 = icmp slt i32 %m.0804, %0 |
| unreachable |
| |
| for.inc1498: ; preds = %if.else1351 |
| %inc1499 = add nuw nsw i32 %m.0804, 1 |
| %1 = load i32, i32* %ptr, align 8 |
| br label %for.body1208 |
| |
| if.then1504: ; preds = %for.cond1204.preheader |
| unreachable |
| |
| if.end1824: ; preds = %for.end1326 |
| br label %while.body |
| } |
| |
| define void @test5(i8* %header, i32 %conv, i8 %n) { |
| ; CHECK-LABEL: @test5( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[POS_42:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[ADD85:%.*]], [[FOR_INC:%.*]] ] |
| ; CHECK-NEXT: br label [[FOR_INNER:%.*]] |
| ; CHECK: for.inner: |
| ; CHECK-NEXT: [[I_0_I:%.*]] = phi i32 [ 0, [[FOR_BODY]] ], [ [[INC_I:%.*]], [[FOR_INNER]] ] |
| ; CHECK-NEXT: [[INC_I]] = add nuw nsw i32 [[I_0_I]], 1 |
| ; CHECK-NEXT: [[CMP7_I:%.*]] = icmp slt i8 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[CMP7_I]], label [[FOR_INNER]], label [[FOR_INNER_EXIT:%.*]] |
| ; CHECK: for.inner.exit: |
| ; CHECK-NEXT: [[INC_I_LCSSA:%.*]] = phi i32 [ [[INC_I]], [[FOR_INNER]] ] |
| ; CHECK-NEXT: br label [[FOR_INNER_2:%.*]] |
| ; CHECK: for.inner.2: |
| ; CHECK-NEXT: [[I_0_I1:%.*]] = phi i32 [ 0, [[FOR_INNER_EXIT]] ], [ [[INC_I3:%.*]], [[FOR_INNER_2]] ] |
| ; CHECK-NEXT: [[INC_I3]] = add nuw nsw i32 [[I_0_I1]], 1 |
| ; CHECK-NEXT: [[CMP7_I4:%.*]] = icmp slt i8 [[N]], 0 |
| ; CHECK-NEXT: br i1 [[CMP7_I4]], label [[FOR_INNER_2]], label [[FOR_INC]] |
| ; CHECK: for.inc: |
| ; CHECK-NEXT: [[INC_I3_LCSSA:%.*]] = phi i32 [ [[INC_I3]], [[FOR_INNER_2]] ] |
| ; CHECK-NEXT: [[ADD71:%.*]] = add i32 [[POS_42]], [[INC_I_LCSSA]] |
| ; CHECK-NEXT: [[ADD85]] = add i32 [[ADD71]], [[INC_I3_LCSSA]] |
| ; CHECK-NEXT: br i1 false, label [[FOR_BODY]], label [[WHILE_COND_PREHEADER:%.*]] |
| ; CHECK: while.cond.preheader: |
| ; CHECK-NEXT: [[ADD85_LCSSA:%.*]] = phi i32 [ [[ADD85]], [[FOR_INC]] ] |
| ; CHECK-NEXT: [[SHL:%.*]] = shl nuw nsw i32 [[CONV:%.*]], 2 |
| ; CHECK-NEXT: br label [[WHILE_COND:%.*]] |
| ; CHECK: while.cond: |
| ; CHECK-NEXT: [[POS_8:%.*]] = phi i32 [ [[INC114:%.*]], [[WHILE_BODY:%.*]] ], [ [[ADD85_LCSSA]], [[WHILE_COND_PREHEADER]] ] |
| ; CHECK-NEXT: [[CMP112:%.*]] = icmp ult i32 [[POS_8]], [[SHL]] |
| ; CHECK-NEXT: br i1 [[CMP112]], label [[WHILE_BODY]], label [[CLEANUP122:%.*]] |
| ; CHECK: while.body: |
| ; CHECK-NEXT: [[INC114]] = add nuw i32 [[POS_8]], 1 |
| ; CHECK-NEXT: [[C_1:%.*]] = call i1 @cond() |
| ; CHECK-NEXT: br i1 [[C_1]], label [[WHILE_COND]], label [[CLEANUP122]] |
| ; CHECK: cleanup122: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| %shl = shl nuw nsw i32 %conv, 2 |
| br label %for.body |
| |
| for.body: ; preds = %entry, %for.inc |
| %pos.42 = phi i32 [ 0, %entry ], [ %add85, %for.inc ] |
| br label %for.inner |
| |
| for.inner: ; preds = %for.body.i, %for.body |
| %i.0.i = phi i32 [ 0, %for.body ], [ %inc.i, %for.inner ] |
| %inc.i = add nuw nsw i32 %i.0.i, 1 |
| %cmp7.i = icmp slt i8 %n, 0 |
| br i1 %cmp7.i, label %for.inner, label %for.inner.exit |
| |
| for.inner.exit: ; preds = %for.body.i |
| %add71 = add i32 %pos.42, %inc.i |
| br label %for.inner.2 |
| |
| for.inner.2: ; preds = %for.body.i6, %cleanup.cont74 |
| %i.0.i1 = phi i32 [ 0, %for.inner.exit ], [ %inc.i3, %for.inner.2] |
| %inc.i3 = add nuw nsw i32 %i.0.i1, 1 |
| %cmp7.i4 = icmp slt i8 %n, 0 |
| br i1 %cmp7.i4, label %for.inner.2, label %for.inc |
| |
| for.inc: ; preds = %for.body.i6 |
| %add85 = add i32 %add71, %inc.i3 |
| br i1 false, label %for.body, label %while.cond.preheader |
| |
| while.cond.preheader: ; preds = %for.inc |
| br label %while.cond |
| |
| while.cond: ; preds = %while.cond.preheader, %while.body |
| %pos.8 = phi i32 [ %inc114, %while.body ], [ %add85, %while.cond.preheader ] |
| %cmp112 = icmp ult i32 %pos.8, %shl |
| br i1 %cmp112, label %while.body, label %cleanup122 |
| |
| while.body: ; preds = %while.cond |
| %inc114 = add nuw i32 %pos.8, 1 |
| %c.1 = call i1 @cond() |
| br i1 %c.1, label %while.cond, label %cleanup122 |
| |
| cleanup122: ; preds = %while.body, %while.cond |
| ret void |
| } |
| |
| define void @test6(i8 %x) { |
| ; CHECK-LABEL: @test6( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[C_1:%.*]] = call i1 @cond() |
| ; CHECK-NEXT: br i1 [[C_1]], label [[LAND_RHS:%.*]], label [[WHILE_END316:%.*]] |
| ; CHECK: land.rhs: |
| ; CHECK-NEXT: br label [[WHILE_BODY35:%.*]] |
| ; CHECK: while.body35: |
| ; CHECK-NEXT: br label [[WHILE_COND192:%.*]] |
| ; CHECK: while.cond192: |
| ; CHECK-NEXT: switch i8 [[X:%.*]], label [[WHILE_BODY205:%.*]] [ |
| ; CHECK-NEXT: i8 59, label [[WHILE_COND215_PREHEADER:%.*]] |
| ; CHECK-NEXT: i8 10, label [[IF_END224:%.*]] |
| ; CHECK-NEXT: ] |
| ; CHECK: while.cond215.preheader: |
| ; CHECK-NEXT: [[I_7_LCSSA:%.*]] = phi i32 [ 0, [[WHILE_COND192]] ] |
| ; CHECK-NEXT: br label [[WHILE_COND215:%.*]] |
| ; CHECK: while.body205: |
| ; CHECK-NEXT: br label [[WHILE_COND192]] |
| ; CHECK: while.cond215: |
| ; CHECK-NEXT: [[I_8_IN:%.*]] = phi i32 [ [[I_8:%.*]], [[WHILE_COND215]] ], [ [[I_7_LCSSA]], [[WHILE_COND215_PREHEADER]] ] |
| ; CHECK-NEXT: [[I_8]] = add nuw nsw i32 [[I_8_IN]], 1 |
| ; CHECK-NEXT: [[IDXPROM216:%.*]] = sext i32 [[I_8]] to i64 |
| ; CHECK-NEXT: [[ARRAYIDX217:%.*]] = getelementptr inbounds [512 x i8], [512 x i8]* null, i64 0, i64 [[IDXPROM216]] |
| ; CHECK-NEXT: br label [[WHILE_COND215]] |
| ; CHECK: if.end224: |
| ; CHECK-NEXT: [[C_2:%.*]] = call i1 @cond() |
| ; CHECK-NEXT: br i1 [[C_2]], label [[WHILE_END225:%.*]], label [[WHILE_BODY35]] |
| ; CHECK: while.end225: |
| ; CHECK-NEXT: unreachable |
| ; CHECK: while.end316: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| %c.1 = call i1 @cond() |
| br i1 %c.1, label %land.rhs, label %while.end316 |
| |
| land.rhs: ; preds = %entry |
| br label %while.body35 |
| |
| while.body35: ; preds = %if.end224, %land.rhs |
| br label %while.cond192 |
| |
| while.cond192: ; preds = %while.body205, %while.body35 |
| %i.7 = phi i32 [ 0, %while.body35 ], [ %inc206, %while.body205 ] |
| switch i8 %x, label %while.body205 [ |
| i8 59, label %while.cond215 |
| i8 10, label %if.end224 |
| ] |
| |
| while.body205: ; preds = %while.cond192 |
| %inc206 = add nsw i32 %i.7, 1 |
| br label %while.cond192 |
| |
| while.cond215: ; preds = %while.cond215, %while.cond192 |
| %i.8.in = phi i32 [ %i.8, %while.cond215 ], [ %i.7, %while.cond192 ] |
| %i.8 = add nsw i32 %i.8.in, 1 |
| %idxprom216 = sext i32 %i.8 to i64 |
| %arrayidx217 = getelementptr inbounds [512 x i8], [512 x i8]* null, i64 0, i64 %idxprom216 |
| br label %while.cond215 |
| |
| if.end224: ; preds = %while.cond192 |
| %c.2 = call i1 @cond() |
| br i1 %c.2, label %while.end225, label %while.body35 |
| |
| while.end225: ; preds = %if.end224 |
| unreachable |
| |
| while.end316: ; preds = %entry |
| ret void |
| } |
| |
| define void @test7(i32* %ptr) { |
| ; CHECK-LABEL: @test7( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br label [[WHILE_BODY:%.*]] |
| ; CHECK: while.body: |
| ; CHECK-NEXT: br label [[FOR_BODY1208:%.*]] |
| ; CHECK: for.body1208: |
| ; CHECK-NEXT: [[TMP0:%.*]] = phi i32 [ undef, [[WHILE_BODY]] ], [ [[TMP1:%.*]], [[FOR_INC1498:%.*]] ] |
| ; CHECK-NEXT: [[M_048:%.*]] = phi i32 [ 1, [[WHILE_BODY]] ], [ [[INC1499:%.*]], [[FOR_INC1498]] ] |
| ; CHECK-NEXT: [[IDXPROM1212:%.*]] = zext i32 [[M_048]] to i64 |
| ; CHECK-NEXT: [[XPOS1214:%.*]] = getelementptr inbounds i32, i32* [[PTR:%.*]], i64 [[IDXPROM1212]] |
| ; CHECK-NEXT: [[V_1:%.*]] = call i32 @get.i32() |
| ; CHECK-NEXT: [[CMP1215:%.*]] = icmp eq i32 0, [[V_1]] |
| ; CHECK-NEXT: br i1 [[CMP1215]], label [[IF_THEN1217:%.*]], label [[IF_ELSE1351:%.*]] |
| ; CHECK: if.then1217: |
| ; CHECK-NEXT: [[DOTLCSSA:%.*]] = phi i32 [ [[TMP0]], [[FOR_BODY1208]] ] |
| ; CHECK-NEXT: [[M_048_LCSSA:%.*]] = phi i32 [ [[M_048]], [[FOR_BODY1208]] ] |
| ; CHECK-NEXT: [[CMP1249_NOT_NOT:%.*]] = icmp slt i32 [[M_048_LCSSA]], [[DOTLCSSA]] |
| ; CHECK-NEXT: unreachable |
| ; CHECK: if.else1351: |
| ; CHECK-NEXT: [[CMP1358:%.*]] = icmp eq i32 0, undef |
| ; CHECK-NEXT: br i1 [[CMP1358]], label [[IF_THEN1360:%.*]], label [[FOR_INC1498]] |
| ; CHECK: if.then1360: |
| ; CHECK-NEXT: [[M_048_LCSSA1:%.*]] = phi i32 [ [[M_048]], [[IF_ELSE1351]] ] |
| ; CHECK-NEXT: br label [[FOR_COND1390:%.*]] |
| ; CHECK: for.cond1390: |
| ; CHECK-NEXT: [[M_2_IN:%.*]] = phi i32 [ [[M_048_LCSSA1]], [[IF_THEN1360]] ], [ [[M_2:%.*]], [[IF_THEN1403:%.*]] ] |
| ; CHECK-NEXT: [[M_2]] = add nuw nsw i32 [[M_2_IN]], 1 |
| ; CHECK-NEXT: [[IDXPROM1398:%.*]] = zext i32 [[M_2]] to i64 |
| ; CHECK-NEXT: br label [[IF_THEN1403]] |
| ; CHECK: if.then1403: |
| ; CHECK-NEXT: [[XPOS1409:%.*]] = getelementptr inbounds i32, i32* [[PTR]], i64 [[IDXPROM1398]] |
| ; CHECK-NEXT: [[C_1:%.*]] = call i1 @cond() |
| ; CHECK-NEXT: br i1 [[C_1]], label [[FOR_COND1390]], label [[FOR_END1469:%.*]] |
| ; CHECK: for.end1469: |
| ; CHECK-NEXT: br label [[IF_END1824:%.*]] |
| ; CHECK: for.inc1498: |
| ; CHECK-NEXT: [[INC1499]] = add nuw nsw i32 [[M_048]], 1 |
| ; CHECK-NEXT: [[TMP1]] = load i32, i32* undef, align 8 |
| ; CHECK-NEXT: br label [[FOR_BODY1208]] |
| ; CHECK: if.end1824: |
| ; CHECK-NEXT: br label [[WHILE_BODY]] |
| ; |
| entry: |
| br label %while.body |
| |
| while.body: ; preds = %if.end1824, %entry |
| br label %for.body1208 |
| |
| for.body1208: ; preds = %for.inc1498, %while.body |
| %0 = phi i32 [ undef, %while.body ], [ %1, %for.inc1498 ] |
| %m.048 = phi i32 [ 1, %while.body ], [ %inc1499, %for.inc1498 ] |
| %idxprom1212 = zext i32 %m.048 to i64 |
| %xpos1214 = getelementptr inbounds i32, i32* %ptr, i64 %idxprom1212 |
| %v.1 = call i32 @get.i32() |
| %cmp1215 = icmp eq i32 0, %v.1 |
| br i1 %cmp1215, label %if.then1217, label %if.else1351 |
| |
| if.then1217: ; preds = %for.body1208 |
| %cmp1249.not.not = icmp slt i32 %m.048, %0 |
| unreachable |
| |
| if.else1351: ; preds = %for.body1208 |
| %cmp1358 = icmp eq i32 0, undef |
| br i1 %cmp1358, label %if.then1360, label %for.inc1498 |
| |
| if.then1360: ; preds = %if.else1351 |
| br label %for.cond1390 |
| |
| for.cond1390: ; preds = %if.then1403, %if.then1360 |
| %m.2.in = phi i32 [ %m.048, %if.then1360 ], [ %m.2, %if.then1403 ] |
| %m.2 = add nuw nsw i32 %m.2.in, 1 |
| %cmp1392.not.not = icmp slt i32 %m.2.in, %0 |
| %idxprom1398 = zext i32 %m.2 to i64 |
| br label %if.then1403 |
| |
| if.then1403: ; preds = %for.cond1390 |
| %xpos1409 = getelementptr inbounds i32, i32* %ptr, i64 %idxprom1398 |
| %c.1 = call i1 @cond() |
| br i1 %c.1, label %for.cond1390, label %for.end1469 |
| |
| for.end1469: ; preds = %if.then1403 |
| br label %if.end1824 |
| |
| for.inc1498: ; preds = %if.else1351 |
| %inc1499 = add nuw nsw i32 %m.048, 1 |
| %1 = load i32, i32* undef, align 8 |
| br label %for.body1208 |
| |
| if.end1824: ; preds = %for.end1469 |
| br label %while.body |
| } |
