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[IndVarSimplify] Don't perform LFTR only to convert the predicate #126086

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[IndVarSimplify] Don't perform LFTR only to convert the predicate #126086

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5 changes: 0 additions & 5 deletions llvm/lib/Transforms/Scalar/IndVarSimplify.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -725,11 +725,6 @@ static bool needsLFTR(Loop *L, BasicBlock *ExitingBB) {
if (!Cond)
return true;

// Do LFTR to simplify the exit ICMP to EQ/NE
ICmpInst::Predicate Pred = Cond->getPredicate();
if (Pred != ICmpInst::ICMP_NE && Pred != ICmpInst::ICMP_EQ)
return true;

// Look for a loop invariant RHS
Value *LHS = Cond->getOperand(0);
Value *RHS = Cond->getOperand(1);
Expand Down
46 changes: 16 additions & 30 deletions llvm/test/Transforms/IndVarSimplify/2011-11-01-lftrptr.ll
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Original file line number Diff line number Diff line change
Expand Up @@ -12,19 +12,17 @@

define i8 @testnullptrptr(ptr %buf, ptr %end) nounwind {
; PTR64-LABEL: @testnullptrptr(
; PTR64-NEXT: [[END1:%.*]] = ptrtoint ptr [[END:%.*]] to i64
; PTR64-NEXT: br label [[LOOPGUARD:%.*]]
; PTR64: loopguard:
; PTR64-NEXT: [[GUARD:%.*]] = icmp ult ptr null, [[END]]
; PTR64-NEXT: [[GUARD:%.*]] = icmp ult ptr null, [[END:%.*]]
; PTR64-NEXT: br i1 [[GUARD]], label [[PREHEADER:%.*]], label [[EXIT:%.*]]
; PTR64: preheader:
; PTR64-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, ptr null, i64 [[END1]]
; PTR64-NEXT: br label [[LOOP:%.*]]
; PTR64: loop:
; PTR64-NEXT: [[P_01_US_US:%.*]] = phi ptr [ null, [[PREHEADER]] ], [ [[GEP:%.*]], [[LOOP]] ]
; PTR64-NEXT: [[GEP]] = getelementptr inbounds i8, ptr [[P_01_US_US]], i64 1
; PTR64-NEXT: [[SNEXT:%.*]] = load i8, ptr [[GEP]], align 1
; PTR64-NEXT: [[EXITCOND:%.*]] = icmp ne ptr [[GEP]], [[SCEVGEP]]
; PTR64-NEXT: [[EXITCOND:%.*]] = icmp ult ptr [[GEP]], [[END]]
; PTR64-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
; PTR64: exit.loopexit:
; PTR64-NEXT: [[SNEXT_LCSSA:%.*]] = phi i8 [ [[SNEXT]], [[LOOP]] ]
Expand All @@ -34,19 +32,17 @@ define i8 @testnullptrptr(ptr %buf, ptr %end) nounwind {
; PTR64-NEXT: ret i8 [[RET]]
;
; PTR32-LABEL: @testnullptrptr(
; PTR32-NEXT: [[END1:%.*]] = ptrtoint ptr [[END:%.*]] to i32
; PTR32-NEXT: br label [[LOOPGUARD:%.*]]
; PTR32: loopguard:
; PTR32-NEXT: [[GUARD:%.*]] = icmp ult ptr null, [[END]]
; PTR32-NEXT: [[GUARD:%.*]] = icmp ult ptr null, [[END:%.*]]
; PTR32-NEXT: br i1 [[GUARD]], label [[PREHEADER:%.*]], label [[EXIT:%.*]]
; PTR32: preheader:
; PTR32-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, ptr null, i32 [[END1]]
; PTR32-NEXT: br label [[LOOP:%.*]]
; PTR32: loop:
; PTR32-NEXT: [[P_01_US_US:%.*]] = phi ptr [ null, [[PREHEADER]] ], [ [[GEP:%.*]], [[LOOP]] ]
; PTR32-NEXT: [[GEP]] = getelementptr inbounds i8, ptr [[P_01_US_US]], i64 1
; PTR32-NEXT: [[SNEXT:%.*]] = load i8, ptr [[GEP]], align 1
; PTR32-NEXT: [[EXITCOND:%.*]] = icmp ne ptr [[GEP]], [[SCEVGEP]]
; PTR32-NEXT: [[EXITCOND:%.*]] = icmp ult ptr [[GEP]], [[END]]
; PTR32-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
; PTR32: exit.loopexit:
; PTR32-NEXT: [[SNEXT_LCSSA:%.*]] = phi i8 [ [[SNEXT]], [[LOOP]] ]
Expand Down Expand Up @@ -79,21 +75,17 @@ exit:

define i8 @testptrptr(ptr %buf, ptr %end) nounwind {
; PTR64-LABEL: @testptrptr(
; PTR64-NEXT: [[BUF2:%.*]] = ptrtoint ptr [[BUF:%.*]] to i64
; PTR64-NEXT: [[END1:%.*]] = ptrtoint ptr [[END:%.*]] to i64
; PTR64-NEXT: br label [[LOOPGUARD:%.*]]
; PTR64: loopguard:
; PTR64-NEXT: [[GUARD:%.*]] = icmp ult ptr [[BUF]], [[END]]
; PTR64-NEXT: [[GUARD:%.*]] = icmp ult ptr [[BUF:%.*]], [[END:%.*]]
; PTR64-NEXT: br i1 [[GUARD]], label [[PREHEADER:%.*]], label [[EXIT:%.*]]
; PTR64: preheader:
; PTR64-NEXT: [[TMP1:%.*]] = sub i64 [[END1]], [[BUF2]]
; PTR64-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, ptr [[BUF]], i64 [[TMP1]]
; PTR64-NEXT: br label [[LOOP:%.*]]
; PTR64: loop:
; PTR64-NEXT: [[P_01_US_US:%.*]] = phi ptr [ [[BUF]], [[PREHEADER]] ], [ [[GEP:%.*]], [[LOOP]] ]
; PTR64-NEXT: [[GEP]] = getelementptr inbounds i8, ptr [[P_01_US_US]], i64 1
; PTR64-NEXT: [[SNEXT:%.*]] = load i8, ptr [[GEP]], align 1
; PTR64-NEXT: [[EXITCOND:%.*]] = icmp ne ptr [[GEP]], [[SCEVGEP]]
; PTR64-NEXT: [[EXITCOND:%.*]] = icmp ult ptr [[GEP]], [[END]]
; PTR64-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
; PTR64: exit.loopexit:
; PTR64-NEXT: [[SNEXT_LCSSA:%.*]] = phi i8 [ [[SNEXT]], [[LOOP]] ]
Expand All @@ -103,21 +95,17 @@ define i8 @testptrptr(ptr %buf, ptr %end) nounwind {
; PTR64-NEXT: ret i8 [[RET]]
;
; PTR32-LABEL: @testptrptr(
; PTR32-NEXT: [[BUF2:%.*]] = ptrtoint ptr [[BUF:%.*]] to i32
; PTR32-NEXT: [[END1:%.*]] = ptrtoint ptr [[END:%.*]] to i32
; PTR32-NEXT: br label [[LOOPGUARD:%.*]]
; PTR32: loopguard:
; PTR32-NEXT: [[GUARD:%.*]] = icmp ult ptr [[BUF]], [[END]]
; PTR32-NEXT: [[GUARD:%.*]] = icmp ult ptr [[BUF:%.*]], [[END:%.*]]
; PTR32-NEXT: br i1 [[GUARD]], label [[PREHEADER:%.*]], label [[EXIT:%.*]]
; PTR32: preheader:
; PTR32-NEXT: [[TMP1:%.*]] = sub i32 [[END1]], [[BUF2]]
; PTR32-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, ptr [[BUF]], i32 [[TMP1]]
; PTR32-NEXT: br label [[LOOP:%.*]]
; PTR32: loop:
; PTR32-NEXT: [[P_01_US_US:%.*]] = phi ptr [ [[BUF]], [[PREHEADER]] ], [ [[GEP:%.*]], [[LOOP]] ]
; PTR32-NEXT: [[GEP]] = getelementptr inbounds i8, ptr [[P_01_US_US]], i64 1
; PTR32-NEXT: [[SNEXT:%.*]] = load i8, ptr [[GEP]], align 1
; PTR32-NEXT: [[EXITCOND:%.*]] = icmp ne ptr [[GEP]], [[SCEVGEP]]
; PTR32-NEXT: [[EXITCOND:%.*]] = icmp ult ptr [[GEP]], [[END]]
; PTR32-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
; PTR32: exit.loopexit:
; PTR32-NEXT: [[SNEXT_LCSSA:%.*]] = phi i8 [ [[SNEXT]], [[LOOP]] ]
Expand Down Expand Up @@ -158,17 +146,14 @@ define i8 @testnullptrint(ptr %buf, ptr %end) nounwind {
; PTR64-NEXT: [[GUARD:%.*]] = icmp ult i32 0, [[CNT]]
; PTR64-NEXT: br i1 [[GUARD]], label [[PREHEADER:%.*]], label [[EXIT:%.*]]
; PTR64: preheader:
; PTR64-NEXT: [[TMP1:%.*]] = add i32 [[EI]], -1
; PTR64-NEXT: [[TMP2:%.*]] = sub i32 [[TMP1]], [[BI]]
; PTR64-NEXT: [[TMP3:%.*]] = zext i32 [[TMP2]] to i64
; PTR64-NEXT: [[TMP4:%.*]] = add nuw nsw i64 [[TMP3]], 1
; PTR64-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, ptr null, i64 [[TMP4]]
; PTR64-NEXT: br label [[LOOP:%.*]]
; PTR64: loop:
; PTR64-NEXT: [[P_01_US_US:%.*]] = phi ptr [ null, [[PREHEADER]] ], [ [[GEP:%.*]], [[LOOP]] ]
; PTR64-NEXT: [[IV:%.*]] = phi i32 [ 0, [[PREHEADER]] ], [ [[IVNEXT:%.*]], [[LOOP]] ]
; PTR64-NEXT: [[GEP]] = getelementptr inbounds i8, ptr [[P_01_US_US]], i64 1
; PTR64-NEXT: [[SNEXT:%.*]] = load i8, ptr [[GEP]], align 1
; PTR64-NEXT: [[EXITCOND:%.*]] = icmp ne ptr [[GEP]], [[SCEVGEP]]
; PTR64-NEXT: [[IVNEXT]] = add nuw i32 [[IV]], 1
; PTR64-NEXT: [[EXITCOND:%.*]] = icmp ult i32 [[IVNEXT]], [[CNT]]
; PTR64-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
; PTR64: exit.loopexit:
; PTR64-NEXT: [[SNEXT_LCSSA:%.*]] = phi i8 [ [[SNEXT]], [[LOOP]] ]
Expand All @@ -186,13 +171,14 @@ define i8 @testnullptrint(ptr %buf, ptr %end) nounwind {
; PTR32-NEXT: [[GUARD:%.*]] = icmp ult i32 0, [[CNT]]
; PTR32-NEXT: br i1 [[GUARD]], label [[PREHEADER:%.*]], label [[EXIT:%.*]]
; PTR32: preheader:
; PTR32-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, ptr null, i32 [[CNT]]
; PTR32-NEXT: br label [[LOOP:%.*]]
; PTR32: loop:
; PTR32-NEXT: [[P_01_US_US:%.*]] = phi ptr [ null, [[PREHEADER]] ], [ [[GEP:%.*]], [[LOOP]] ]
; PTR32-NEXT: [[IV:%.*]] = phi i32 [ 0, [[PREHEADER]] ], [ [[IVNEXT:%.*]], [[LOOP]] ]
; PTR32-NEXT: [[GEP]] = getelementptr inbounds i8, ptr [[P_01_US_US]], i64 1
; PTR32-NEXT: [[SNEXT:%.*]] = load i8, ptr [[GEP]], align 1
; PTR32-NEXT: [[EXITCOND:%.*]] = icmp ne ptr [[GEP]], [[SCEVGEP]]
; PTR32-NEXT: [[IVNEXT]] = add nuw i32 [[IV]], 1
; PTR32-NEXT: [[EXITCOND:%.*]] = icmp ult i32 [[IVNEXT]], [[CNT]]
; PTR32-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
; PTR32: exit.loopexit:
; PTR32-NEXT: [[SNEXT_LCSSA:%.*]] = phi i8 [ [[SNEXT]], [[LOOP]] ]
Expand Down Expand Up @@ -245,7 +231,7 @@ define i8 @testptrint(ptr %buf, ptr %end) nounwind {
; PTR64-NEXT: [[GEP]] = getelementptr inbounds i8, ptr [[P_01_US_US]], i64 1
; PTR64-NEXT: [[SNEXT:%.*]] = load i8, ptr [[GEP]], align 1
; PTR64-NEXT: [[IVNEXT]] = add nuw i32 [[IV]], 1
; PTR64-NEXT: [[EXITCOND:%.*]] = icmp ne i32 [[IVNEXT]], [[CNT]]
; PTR64-NEXT: [[EXITCOND:%.*]] = icmp ult i32 [[IVNEXT]], [[CNT]]
; PTR64-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
; PTR64: exit.loopexit:
; PTR64-NEXT: [[SNEXT_LCSSA:%.*]] = phi i8 [ [[SNEXT]], [[LOOP]] ]
Expand All @@ -270,7 +256,7 @@ define i8 @testptrint(ptr %buf, ptr %end) nounwind {
; PTR32-NEXT: [[GEP]] = getelementptr inbounds i8, ptr [[P_01_US_US]], i64 1
; PTR32-NEXT: [[SNEXT:%.*]] = load i8, ptr [[GEP]], align 1
; PTR32-NEXT: [[IVNEXT]] = add nuw i32 [[IV]], 1
; PTR32-NEXT: [[EXITCOND:%.*]] = icmp ne i32 [[IVNEXT]], [[CNT]]
; PTR32-NEXT: [[EXITCOND:%.*]] = icmp ult i32 [[IVNEXT]], [[CNT]]
; PTR32-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
; PTR32: exit.loopexit:
; PTR32-NEXT: [[SNEXT_LCSSA:%.*]] = phi i8 [ [[SNEXT]], [[LOOP]] ]
Expand Down
47 changes: 18 additions & 29 deletions llvm/test/Transforms/IndVarSimplify/AArch64/widen-loop-comp.ll
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Expand Up @@ -25,13 +25,11 @@ define i32 @test1() {
; CHECK: for.body.lr.ph:
; CHECK-NEXT: [[TMP1:%.*]] = load ptr, ptr @ptr, align 8
; CHECK-NEXT: [[TMP2:%.*]] = load i32, ptr @e, align 4
; CHECK-NEXT: [[SMAX:%.*]] = call i32 @llvm.smax.i32(i32 [[TMP2]], i32 0)
; CHECK-NEXT: [[TMP3:%.*]] = add nuw i32 [[SMAX]], 1
; CHECK-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[TMP3]] to i64
; CHECK-NEXT: [[TMP3:%.*]] = sext i32 [[TMP2]] to i64
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.cond:
; CHECK-NEXT: [[INDVARS_IV_NEXT:%.*]] = add nuw nsw i64 [[INDVARS_IV:%.*]], 1
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT]], [[WIDE_TRIP_COUNT]]
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp slt i64 [[INDVARS_IV]], [[TMP3]]
; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_COND_FOR_END_LOOPEXIT_CRIT_EDGE:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[INDVARS_IV]] = phi i64 [ [[INDVARS_IV_NEXT]], [[FOR_COND:%.*]] ], [ 0, [[FOR_BODY_LR_PH]] ]
Expand Down Expand Up @@ -97,9 +95,9 @@ define void @test2(ptr %a, ptr %b, i8 %limit, i1 %arg) {
; CHECK-LABEL: @test2(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CONV:%.*]] = zext i8 [[LIMIT:%.*]] to i32
; CHECK-NEXT: br i1 %arg, label [[FOR_COND1_PREHEADER_PREHEADER:%.*]], label [[FOR_COND1_PREHEADER_US_PREHEADER:%.*]]
; CHECK-NEXT: br i1 [[ARG:%.*]], label [[FOR_COND1_PREHEADER_PREHEADER:%.*]], label [[FOR_COND1_PREHEADER_US_PREHEADER:%.*]]
; CHECK: for.cond1.preheader.us.preheader:
; CHECK-NEXT: [[SMAX:%.*]] = call i32 @llvm.smax.i32(i32 [[CONV]], i32 1)
; CHECK-NEXT: [[TMP2:%.*]] = zext i32 [[CONV]] to i64
; CHECK-NEXT: br label [[FOR_COND1_PREHEADER_US:%.*]]
; CHECK: for.cond1.preheader.preheader:
; CHECK-NEXT: br label [[FOR_COND1_PREHEADER:%.*]]
Expand All @@ -110,7 +108,7 @@ define void @test2(ptr %a, ptr %b, i8 %limit, i1 %arg) {
; CHECK-NEXT: br label [[FOR_INC13_US]]
; CHECK: for.inc13.us:
; CHECK-NEXT: [[INDVARS_IV_NEXT4]] = add nuw nsw i64 [[INDVARS_IV3]], 1
; CHECK-NEXT: [[EXITCOND6:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT4]], 4
; CHECK-NEXT: [[EXITCOND6:%.*]] = icmp ult i64 [[INDVARS_IV_NEXT4]], 4
; CHECK-NEXT: br i1 [[EXITCOND6]], label [[FOR_COND1_PREHEADER_US]], label [[FOR_END_LOOPEXIT1:%.*]]
; CHECK: for.body4.us:
; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[FOR_BODY4_LR_PH_US]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY4_US:%.*]] ]
Expand All @@ -121,10 +119,9 @@ define void @test2(ptr %a, ptr %b, i8 %limit, i1 %arg) {
; CHECK-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX8_US]], align 1
; CHECK-NEXT: store i8 [[TMP1]], ptr [[ARRAYIDX6_US]], align 1
; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT]], [[WIDE_TRIP_COUNT:%.*]]
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ult i64 [[INDVARS_IV_NEXT]], [[TMP2]]
; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY4_US]], label [[FOR_INC13_US_LOOPEXIT:%.*]]
; CHECK: for.body4.lr.ph.us:
; CHECK-NEXT: [[WIDE_TRIP_COUNT]] = zext i32 [[SMAX]] to i64
; CHECK-NEXT: br label [[FOR_BODY4_US]]
; CHECK: for.cond1.preheader:
; CHECK-NEXT: br i1 false, label [[FOR_INC13:%.*]], label [[FOR_INC13]]
Expand Down Expand Up @@ -184,13 +181,12 @@ for.end:
define i32 @test3(ptr %a, i32 %b) {
; CHECK-LABEL: @test3(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[SMAX:%.*]] = call i32 @llvm.smax.i32(i32 [[B:%.*]], i32 0)
; CHECK-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[SMAX]] to i64
; CHECK-NEXT: [[TMP1:%.*]] = sext i32 [[B:%.*]] to i64
; CHECK-NEXT: br label [[FOR_COND:%.*]]
; CHECK: for.cond:
; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY:%.*]] ], [ 0, [[ENTRY:%.*]] ]
; CHECK-NEXT: [[SUM_0:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV]], [[WIDE_TRIP_COUNT]]
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp slt i64 [[INDVARS_IV]], [[TMP1]]
; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[INDVARS_IV]]
Expand Down Expand Up @@ -265,12 +261,11 @@ define i32 @test5(ptr %a, i32 %b) {
; CHECK-LABEL: @test5(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = zext i32 [[B:%.*]] to i64
; CHECK-NEXT: [[TMP1:%.*]] = add nuw nsw i64 [[TMP0]], 1
; CHECK-NEXT: br label [[FOR_COND:%.*]]
; CHECK: for.cond:
; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY:%.*]] ], [ 0, [[ENTRY:%.*]] ]
; CHECK-NEXT: [[SUM_0:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV]], [[TMP1]]
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ule i64 [[INDVARS_IV]], [[TMP0]]
; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[INDVARS_IV]]
Expand Down Expand Up @@ -306,14 +301,12 @@ for.end:
define i32 @test6(ptr %a, i32 %b) {
; CHECK-LABEL: @test6(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[SMAX:%.*]] = call i32 @llvm.smax.i32(i32 [[B:%.*]], i32 -1)
; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[SMAX]], 1
; CHECK-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[TMP0]] to i64
; CHECK-NEXT: [[TMP0:%.*]] = sext i32 [[B:%.*]] to i64
; CHECK-NEXT: br label [[FOR_COND:%.*]]
; CHECK: for.cond:
; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY:%.*]] ], [ 0, [[ENTRY:%.*]] ]
; CHECK-NEXT: [[SUM_0:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV]], [[WIDE_TRIP_COUNT]]
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp sle i64 [[INDVARS_IV]], [[TMP0]]
; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[INDVARS_IV]]
Expand Down Expand Up @@ -349,23 +342,20 @@ for.end:
define i32 @test7(ptr %a, i32 %b) {
; CHECK-LABEL: @test7(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = zext i32 [[B:%.*]] to i64
; CHECK-NEXT: [[TMP1:%.*]] = add nuw nsw i64 [[TMP0]], 1
; CHECK-NEXT: [[SMAX:%.*]] = call i32 @llvm.smax.i32(i32 [[B]], i32 -1)
; CHECK-NEXT: [[TMP2:%.*]] = add i32 [[SMAX]], 2
; CHECK-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[TMP2]] to i64
; CHECK-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[TMP2:%.*]] to i64
; CHECK-NEXT: [[TMP1:%.*]] = sext i32 [[TMP2]] to i64
; CHECK-NEXT: br label [[FOR_COND:%.*]]
; CHECK: for.cond:
; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY:%.*]] ], [ 0, [[ENTRY:%.*]] ]
; CHECK-NEXT: [[SUM_0:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV]], [[TMP1]]
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ule i64 [[INDVARS_IV]], [[WIDE_TRIP_COUNT]]
; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[INDVARS_IV]]
; CHECK-NEXT: [[TMP3:%.*]] = load i32, ptr [[ARRAYIDX]], align 4
; CHECK-NEXT: [[ADD]] = add nsw i32 [[SUM_0]], [[TMP3]]
; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
; CHECK-NEXT: [[EXITCOND2:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT]], [[WIDE_TRIP_COUNT]]
; CHECK-NEXT: [[EXITCOND2:%.*]] = icmp sle i64 [[INDVARS_IV]], [[TMP1]]
; CHECK-NEXT: br i1 [[EXITCOND2]], label [[FOR_COND]], label [[FOR_END]]
; CHECK: for.end:
; CHECK-NEXT: [[SUM_0_LCSSA:%.*]] = phi i32 [ [[SUM_0]], [[FOR_BODY]] ], [ [[SUM_0]], [[FOR_COND]] ]
Expand Down Expand Up @@ -455,13 +445,12 @@ define i32 @test9(ptr %a, i32 %b, i32 %init) {
; CHECK-NEXT: br i1 [[E]], label [[FOR_COND_PREHEADER:%.*]], label [[LEAVE:%.*]]
; CHECK: for.cond.preheader:
; CHECK-NEXT: [[TMP0:%.*]] = zext i32 [[INIT]] to i64
; CHECK-NEXT: [[SMAX:%.*]] = call i32 @llvm.smax.i32(i32 [[INIT]], i32 [[B:%.*]])
; CHECK-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[SMAX]] to i64
; CHECK-NEXT: [[TMP3:%.*]] = sext i32 [[B:%.*]] to i64
; CHECK-NEXT: br label [[FOR_COND:%.*]]
; CHECK: for.cond:
; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[TMP0]], [[FOR_COND_PREHEADER]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY:%.*]] ]
; CHECK-NEXT: [[SUM_0:%.*]] = phi i32 [ [[ADD:%.*]], [[FOR_BODY]] ], [ 0, [[FOR_COND_PREHEADER]] ]
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV]], [[WIDE_TRIP_COUNT]]
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp slt i64 [[INDVARS_IV]], [[TMP3]]
; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[INDVARS_IV]]
Expand Down Expand Up @@ -517,8 +506,8 @@ define i32 @test10(i32 %v) {
; CHECK-NEXT: [[TMP0:%.*]] = mul nsw i64 [[INDVARS_IV]], -1
; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i64 [[TMP0]], [[SEXT]]
; CHECK-NEXT: call void @consume.i1(i1 [[TMP1]])
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ult i64 [[INDVARS_IV_NEXT]], 11
; CHECK-NEXT: call void @consume.i64(i64 [[TMP0]])
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT]], 11
; CHECK-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[LEAVE:%.*]]
; CHECK: leave:
; CHECK-NEXT: ret i32 22
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