diff --git a/llvm/lib/Transforms/Utils/LoopUnroll.cpp b/llvm/lib/Transforms/Utils/LoopUnroll.cpp index 20bf5a25d5a7..15c9fc31ba01 100644 --- a/llvm/lib/Transforms/Utils/LoopUnroll.cpp +++ b/llvm/lib/Transforms/Utils/LoopUnroll.cpp @@ -220,26 +220,24 @@ void llvm::simplifyLoopAfterUnroll(Loop *L, bool SimplifyIVs, LoopInfo *LI, } } - // At this point, the code is well formed. We now do a quick sweep over the - // inserted code, doing constant propagation and dead code elimination as we - // go. + // At this point, the code is well formed. Perform constprop, instsimplify, + // and dce. const DataLayout &DL = L->getHeader()->getModule()->getDataLayout(); + SmallVector DeadInsts; for (BasicBlock *BB : L->getBlocks()) { for (BasicBlock::iterator I = BB->begin(), E = BB->end(); I != E;) { Instruction *Inst = &*I++; - if (Value *V = SimplifyInstruction(Inst, {DL, nullptr, DT, AC})) if (LI->replacementPreservesLCSSAForm(Inst, V)) Inst->replaceAllUsesWith(V); if (isInstructionTriviallyDead(Inst)) - BB->getInstList().erase(Inst); + DeadInsts.emplace_back(Inst); } + // We can't do recursive deletion until we're done iterating, as we might + // have a phi which (potentially indirectly) uses instructions later in + // the block we're iterating through. + RecursivelyDeleteTriviallyDeadInstructions(DeadInsts); } - - // TODO: after peeling or unrolling, previously loop variant conditions are - // likely to fold to constants, eagerly propagating those here will require - // fewer cleanup passes to be run. Alternatively, a LoopEarlyCSE might be - // appropriate. } /// Unroll the given loop by Count. The loop must be in LCSSA form. Unrolling diff --git a/llvm/test/Transforms/LoopUnroll/AArch64/full-unroll-trip-count-upper-bound.ll b/llvm/test/Transforms/LoopUnroll/AArch64/full-unroll-trip-count-upper-bound.ll index 5c70a2668db1..b924d74166d7 100644 --- a/llvm/test/Transforms/LoopUnroll/AArch64/full-unroll-trip-count-upper-bound.ll +++ b/llvm/test/Transforms/LoopUnroll/AArch64/full-unroll-trip-count-upper-bound.ll @@ -11,12 +11,13 @@ ; } ; ; This test is meant to check that this loop is unrolled into four iterations. +; Note that the load on the last iteration is dead and thus doesn't appear in +; the output. ; UNROLL-LABEL: @test ; UNROLL: load i32, i32* ; UNROLL: load i32, i32* ; UNROLL: load i32, i32* -; UNROLL: load i32, i32* ; UNROLL-NOT: load i32, i32* ; NOUNROLL-LABEL: @test ; NOUNROLL: load i32, i32* diff --git a/llvm/test/Transforms/LoopUnroll/dce.ll b/llvm/test/Transforms/LoopUnroll/dce.ll new file mode 100644 index 000000000000..db46e7ca5d55 --- /dev/null +++ b/llvm/test/Transforms/LoopUnroll/dce.ll @@ -0,0 +1,60 @@ +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py +; RUN: opt -loop-unroll -S < %s | FileCheck %s + +; Can't recursively delete %c.addr.07 without deleting %conv1 +; and thus invalidating iteration. +define void @PR50368(i32 %c, i64 %x) { +; CHECK-LABEL: @PR50368( +; CHECK-NEXT: entry: +; CHECK-NEXT: br label [[LOOP_PEEL_BEGIN:%.*]] +; CHECK: loop.peel.begin: +; CHECK-NEXT: br label [[LOOP_PEEL:%.*]] +; CHECK: loop.peel: +; CHECK-NEXT: br i1 false, label [[EXIT:%.*]], label [[LOOP_PEEL_NEXT:%.*]] +; CHECK: loop.peel.next: +; CHECK-NEXT: br label [[LOOP_PEEL_NEXT1:%.*]] +; CHECK: loop.peel.next1: +; CHECK-NEXT: br label [[ENTRY_PEEL_NEWPH:%.*]] +; CHECK: entry.peel.newph: +; CHECK-NEXT: br label [[LOOP:%.*]] +; CHECK: loop: +; CHECK-NEXT: br i1 false, label [[EXIT_LOOPEXIT:%.*]], label [[LOOP]], !llvm.loop [[LOOP0:![0-9]+]] +; CHECK: exit.loopexit: +; CHECK-NEXT: br label [[EXIT]] +; CHECK: exit: +; CHECK-NEXT: ret void +; +entry: + br label %loop + +loop: + %0 = phi i64 [ 0, %loop ], [ %x, %entry ] + %c.addr.07 = phi i32 [ %conv1, %loop ], [ %c, %entry ] + %conv1 = trunc i64 undef to i32 + br i1 false, label %exit, label %loop + +exit: + ret void +} + + +define void @dead_chain(i64 %a) { +; CHECK-LABEL: @dead_chain( +; CHECK-NEXT: entry: +; CHECK-NEXT: br label [[LOOP:%.*]] +; CHECK: loop: +; CHECK-NEXT: ret void +; +entry: + br label %loop + +loop: + %conv1 = trunc i64 %a to i32 + %and = and i32 %conv1, 15 + %shl = shl i32 %and, 15 + br i1 true, label %exit, label %loop + +exit: + ret void +} + diff --git a/llvm/test/Transforms/LoopUnroll/full-unroll-invariant.ll b/llvm/test/Transforms/LoopUnroll/full-unroll-invariant.ll index 5e9f5d3a7fd3..ce5649416f33 100644 --- a/llvm/test/Transforms/LoopUnroll/full-unroll-invariant.ll +++ b/llvm/test/Transforms/LoopUnroll/full-unroll-invariant.ll @@ -34,25 +34,7 @@ define i32 @test2(i8 %a) { ; CHECK-NEXT: entry: ; CHECK-NEXT: br label [[FOR_BODY:%.*]] ; CHECK: for.body: -; CHECK-NEXT: [[ZEXT:%.*]] = zext i8 [[A:%.*]] to i32 -; CHECK-NEXT: [[AND:%.*]] = and i32 [[ZEXT]], 31 -; CHECK-NEXT: [[ZEXT_1:%.*]] = zext i8 [[A]] to i32 -; CHECK-NEXT: [[AND_1:%.*]] = and i32 [[ZEXT_1]], 31 -; CHECK-NEXT: [[ZEXT_2:%.*]] = zext i8 [[A]] to i32 -; CHECK-NEXT: [[AND_2:%.*]] = and i32 [[ZEXT_2]], 31 -; CHECK-NEXT: [[ZEXT_3:%.*]] = zext i8 [[A]] to i32 -; CHECK-NEXT: [[AND_3:%.*]] = and i32 [[ZEXT_3]], 31 -; CHECK-NEXT: [[ZEXT_4:%.*]] = zext i8 [[A]] to i32 -; CHECK-NEXT: [[AND_4:%.*]] = and i32 [[ZEXT_4]], 31 -; CHECK-NEXT: [[ZEXT_5:%.*]] = zext i8 [[A]] to i32 -; CHECK-NEXT: [[AND_5:%.*]] = and i32 [[ZEXT_5]], 31 -; CHECK-NEXT: [[ZEXT_6:%.*]] = zext i8 [[A]] to i32 -; CHECK-NEXT: [[AND_6:%.*]] = and i32 [[ZEXT_6]], 31 -; CHECK-NEXT: [[ZEXT_7:%.*]] = zext i8 [[A]] to i32 -; CHECK-NEXT: [[AND_7:%.*]] = and i32 [[ZEXT_7]], 31 -; CHECK-NEXT: [[ZEXT_8:%.*]] = zext i8 [[A]] to i32 -; CHECK-NEXT: [[AND_8:%.*]] = and i32 [[ZEXT_8]], 31 -; CHECK-NEXT: [[ZEXT_9:%.*]] = zext i8 [[A]] to i32 +; CHECK-NEXT: [[ZEXT_9:%.*]] = zext i8 [[A:%.*]] to i32 ; CHECK-NEXT: [[AND_9:%.*]] = and i32 [[ZEXT_9]], 31 ; CHECK-NEXT: [[SHL_9:%.*]] = shl i32 [[AND_9]], 15 ; CHECK-NEXT: ret i32 [[SHL_9]] @@ -79,16 +61,7 @@ define i32 @test3(i8 %a) { ; CHECK-NEXT: entry: ; CHECK-NEXT: br label [[FOR_BODY:%.*]] ; CHECK: for.body: -; CHECK-NEXT: [[ZEXT:%.*]] = zext i8 [[A:%.*]] to i32 -; CHECK-NEXT: [[ZEXT_1:%.*]] = zext i8 [[A]] to i32 -; CHECK-NEXT: [[ZEXT_2:%.*]] = zext i8 [[A]] to i32 -; CHECK-NEXT: [[ZEXT_3:%.*]] = zext i8 [[A]] to i32 -; CHECK-NEXT: [[ZEXT_4:%.*]] = zext i8 [[A]] to i32 -; CHECK-NEXT: [[ZEXT_5:%.*]] = zext i8 [[A]] to i32 -; CHECK-NEXT: [[ZEXT_6:%.*]] = zext i8 [[A]] to i32 -; CHECK-NEXT: [[ZEXT_7:%.*]] = zext i8 [[A]] to i32 -; CHECK-NEXT: [[ZEXT_8:%.*]] = zext i8 [[A]] to i32 -; CHECK-NEXT: [[ZEXT_9:%.*]] = zext i8 [[A]] to i32 +; CHECK-NEXT: [[ZEXT_9:%.*]] = zext i8 [[A:%.*]] to i32 ; CHECK-NEXT: [[DIV_9:%.*]] = udiv i32 [[ZEXT_9]], 31 ; CHECK-NEXT: ret i32 [[DIV_9]] ; diff --git a/llvm/test/Transforms/LoopUnroll/nonlatchcondbr.ll b/llvm/test/Transforms/LoopUnroll/nonlatchcondbr.ll index b433ebb4d642..995d5de0cdf7 100644 --- a/llvm/test/Transforms/LoopUnroll/nonlatchcondbr.ll +++ b/llvm/test/Transforms/LoopUnroll/nonlatchcondbr.ll @@ -40,7 +40,6 @@ define void @test1(i32* noalias %A) { ; CHECK: for.body.3: ; CHECK-NEXT: br i1 false, label [[FOR_BODY_FOR_BODY_CRIT_EDGE_3:%.*]], label [[FOR_END:%.*]] ; CHECK: for.body.for.body_crit_edge.3: -; CHECK-NEXT: [[ARRAYIDX_PHI_TRANS_INSERT_3:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 4 ; CHECK-NEXT: unreachable ; entry: @@ -124,7 +123,7 @@ define void @test2(i32* noalias %A) { ; CHECK: for.body.for.body_crit_edge.3: ; CHECK-NEXT: [[ARRAYIDX_PHI_TRANS_INSERT_3:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[INC_3]] ; CHECK-NEXT: [[DOTPRE_3]] = load i32, i32* [[ARRAYIDX_PHI_TRANS_INSERT_3]], align 4 -; CHECK-NEXT: br label [[FOR_HEADER]], !llvm.loop !0 +; CHECK-NEXT: br label [[FOR_HEADER]], !llvm.loop [[LOOP0:![0-9]+]] ; entry: br i1 true, label %for.preheader, label %for.end @@ -202,7 +201,7 @@ define void @test3(i32* noalias %A, i1 %cond) { ; CHECK: for.body.for.body_crit_edge.3: ; CHECK-NEXT: [[ARRAYIDX_PHI_TRANS_INSERT_3:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[INC_3]] ; CHECK-NEXT: [[DOTPRE_3]] = load i32, i32* [[ARRAYIDX_PHI_TRANS_INSERT_3]], align 4 -; CHECK-NEXT: br label [[FOR_HEADER]], !llvm.loop !2 +; CHECK-NEXT: br label [[FOR_HEADER]], !llvm.loop [[LOOP2:![0-9]+]] ; entry: %0 = load i32, i32* %A, align 4 diff --git a/llvm/test/Transforms/LoopUnroll/optsize-loop-size.ll b/llvm/test/Transforms/LoopUnroll/optsize-loop-size.ll index 4ca397a1c770..659c7cf9af37 100644 --- a/llvm/test/Transforms/LoopUnroll/optsize-loop-size.ll +++ b/llvm/test/Transforms/LoopUnroll/optsize-loop-size.ll @@ -12,7 +12,6 @@ define i32 @test(i32 %a, i32 %b, i32 %c) optsize { ; CHECK-NEXT: store i32 [[B:%.*]], i32* [[ARRAYINIT_ELEMENT]], align 4 ; CHECK-NEXT: [[ARRAYINIT_ELEMENT1:%.*]] = getelementptr inbounds [3 x i32], [3 x i32]* [[REF_TMP]], i64 0, i64 2 ; CHECK-NEXT: store i32 [[C:%.*]], i32* [[ARRAYINIT_ELEMENT1]], align 4 -; CHECK-NEXT: [[ADD_PTR_I_I:%.*]] = getelementptr inbounds [3 x i32], [3 x i32]* [[REF_TMP]], i64 0, i64 3 ; CHECK-NEXT: [[CMP_I_I_I3:%.*]] = icmp slt i32 [[A]], [[B]] ; CHECK-NEXT: [[SPEC_SELECT_I_I4:%.*]] = select i1 [[CMP_I_I_I3]], i32* [[ARRAYINIT_ELEMENT]], i32* [[ARRAYINIT_BEGIN]] ; CHECK-NEXT: [[INCDEC_PTR_I_I5:%.*]] = getelementptr inbounds [3 x i32], [3 x i32]* [[REF_TMP]], i64 0, i64 2 @@ -22,7 +21,6 @@ define i32 @test(i32 %a, i32 %b, i32 %c) optsize { ; CHECK-NEXT: [[DOTPRE2:%.*]] = load i32, i32* [[INCDEC_PTR_I_I5]], align 4 ; CHECK-NEXT: [[CMP_I_I_I:%.*]] = icmp slt i32 [[DOTPRE]], [[DOTPRE2]] ; CHECK-NEXT: [[SPEC_SELECT_I_I:%.*]] = select i1 [[CMP_I_I_I]], i32* [[INCDEC_PTR_I_I5]], i32* [[SPEC_SELECT_I_I4]] -; CHECK-NEXT: [[INCDEC_PTR_I_I:%.*]] = getelementptr inbounds i32, i32* [[INCDEC_PTR_I_I5]], i64 1 ; CHECK-NEXT: [[TMP1:%.*]] = load i32, i32* [[SPEC_SELECT_I_I]], align 4 ; CHECK-NEXT: ret i32 [[TMP1]] ; diff --git a/llvm/test/Transforms/LoopUnroll/pr45939-peel-count-and-complete-unroll.ll b/llvm/test/Transforms/LoopUnroll/pr45939-peel-count-and-complete-unroll.ll index 633a2d24baf9..d7325692fab3 100644 --- a/llvm/test/Transforms/LoopUnroll/pr45939-peel-count-and-complete-unroll.ll +++ b/llvm/test/Transforms/LoopUnroll/pr45939-peel-count-and-complete-unroll.ll @@ -163,7 +163,6 @@ define void @test1() { ; PEEL8-NEXT: [[ARRAYIDX_7:%.*]] = getelementptr inbounds [8 x i32], [8 x i32]* @a, i64 0, i64 [[INDVARS_IV_NEXT_6]] ; PEEL8-NEXT: [[TMP15:%.*]] = trunc i64 [[INDVARS_IV_NEXT_6]] to i32 ; PEEL8-NEXT: store i32 [[TMP15]], i32* [[ARRAYIDX_7]], align 4 -; PEEL8-NEXT: [[INDVARS_IV_NEXT_7:%.*]] = add nuw nsw i64 [[INDVARS_IV_NEXT_6]], 1 ; PEEL8-NEXT: br label [[FOR_EXIT]] ; PEEL8: for.exit: ; PEEL8-NEXT: ret void @@ -206,7 +205,7 @@ define void @test1() { ; PEEL2UNROLL2-NEXT: store i32 [[TMP3]], i32* [[ARRAYIDX_1]], align 4 ; PEEL2UNROLL2-NEXT: [[INDVARS_IV_NEXT_1]] = add nuw nsw i64 [[INDVARS_IV_NEXT]], 1 ; PEEL2UNROLL2-NEXT: [[EXITCOND_1:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT_1]], 8 -; PEEL2UNROLL2-NEXT: br i1 [[EXITCOND_1]], label [[FOR_BODY]], label [[FOR_EXIT_LOOPEXIT:%.*]], !llvm.loop !0 +; PEEL2UNROLL2-NEXT: br i1 [[EXITCOND_1]], label [[FOR_BODY]], label [[FOR_EXIT_LOOPEXIT:%.*]], !llvm.loop [[LOOP0:![0-9]+]] ; PEEL2UNROLL2: for.exit.loopexit: ; PEEL2UNROLL2-NEXT: br label [[FOR_EXIT]] ; PEEL2UNROLL2: for.exit: diff --git a/llvm/test/Transforms/LoopUnroll/scevunroll.ll b/llvm/test/Transforms/LoopUnroll/scevunroll.ll index 4d9ae39f721f..566dbeb5fcd2 100644 --- a/llvm/test/Transforms/LoopUnroll/scevunroll.ll +++ b/llvm/test/Transforms/LoopUnroll/scevunroll.ll @@ -10,7 +10,6 @@ define i32 @sansCanonical(i32* %base) nounwind { ; CHECK-LABEL: @sansCanonical( ; CHECK-NEXT: entry: -; CHECK-NEXT: [[ZEXT:%.*]] = zext i32 0 to i64 ; CHECK-NEXT: br label [[WHILE_BODY:%.*]] ; CHECK: while.body: ; CHECK-NEXT: [[ADR:%.*]] = getelementptr inbounds i32, i32* [[BASE:%.*]], i64 9 @@ -39,7 +38,6 @@ define i32 @sansCanonical(i32* %base) nounwind { ; CHECK-NEXT: [[ADR_8:%.*]] = getelementptr inbounds i32, i32* [[BASE]], i64 1 ; CHECK-NEXT: [[TMP_8:%.*]] = load i32, i32* [[ADR_8]], align 8 ; CHECK-NEXT: [[SUM_NEXT_8:%.*]] = add i32 [[SUM_NEXT_7]], [[TMP_8]] -; CHECK-NEXT: [[TMP_9:%.*]] = load i32, i32* [[BASE]], align 8 ; CHECK-NEXT: ret i32 [[SUM_NEXT_8]] ; entry: diff --git a/llvm/test/Transforms/LoopUnroll/unroll-header-exiting-with-phis.ll b/llvm/test/Transforms/LoopUnroll/unroll-header-exiting-with-phis.ll index 4bbae7e83e9b..5b3729803303 100644 --- a/llvm/test/Transforms/LoopUnroll/unroll-header-exiting-with-phis.ll +++ b/llvm/test/Transforms/LoopUnroll/unroll-header-exiting-with-phis.ll @@ -10,23 +10,18 @@ define i16 @full_unroll(i16* %A) { ; CHECK-NEXT: entry: ; CHECK-NEXT: br label [[FOR_COND:%.*]] ; CHECK: for.cond: -; CHECK-NEXT: [[TMP2:%.*]] = load i16, i16* [[A:%.*]], align 2 ; CHECK-NEXT: br label [[FOR_COND_CLEANUP3:%.*]] ; CHECK: for.cond.cleanup: ; CHECK-NEXT: [[DOTLCSSA10_LCSSA:%.*]] = phi i16 [ [[TMP2_2:%.*]], [[FOR_COND_CLEANUP3_2:%.*]] ] ; CHECK-NEXT: [[TMP3:%.*]] = call i16 @func(i16 [[DOTLCSSA10_LCSSA]]) ; CHECK-NEXT: ret i16 0 ; CHECK: for.cond.cleanup3: -; CHECK-NEXT: [[PTR_1:%.*]] = getelementptr inbounds i16, i16* [[A]], i64 1 -; CHECK-NEXT: [[TMP2_1:%.*]] = load i16, i16* [[PTR_1]], align 2 ; CHECK-NEXT: br label [[FOR_COND_CLEANUP3_1:%.*]] ; CHECK: for.cond.cleanup3.1: -; CHECK-NEXT: [[PTR_2:%.*]] = getelementptr inbounds i16, i16* [[A]], i64 2 +; CHECK-NEXT: [[PTR_2:%.*]] = getelementptr inbounds i16, i16* [[A:%.*]], i64 2 ; CHECK-NEXT: [[TMP2_2]] = load i16, i16* [[PTR_2]], align 2 ; CHECK-NEXT: br label [[FOR_COND_CLEANUP3_2]] ; CHECK: for.cond.cleanup3.2: -; CHECK-NEXT: [[PTR_3:%.*]] = getelementptr inbounds i16, i16* [[A]], i64 3 -; CHECK-NEXT: [[TMP2_3:%.*]] = load i16, i16* [[PTR_3]], align 2 ; CHECK-NEXT: br i1 false, label [[FOR_COND_CLEANUP3_3:%.*]], label [[FOR_COND_CLEANUP:%.*]] ; CHECK: for.cond.cleanup3.3: ; CHECK-NEXT: unreachable @@ -59,8 +54,6 @@ define i16 @partial_unroll(i16* %A) { ; CHECK-NEXT: br label [[FOR_COND:%.*]] ; CHECK: for.cond: ; CHECK-NEXT: [[I_0:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[INC9_2:%.*]], [[FOR_COND_CLEANUP3_2:%.*]] ] -; CHECK-NEXT: [[PTR:%.*]] = getelementptr inbounds i16, i16* [[A:%.*]], i64 [[I_0]] -; CHECK-NEXT: [[TMP2:%.*]] = load i16, i16* [[PTR]], align 2 ; CHECK-NEXT: br label [[FOR_COND_CLEANUP3:%.*]] ; CHECK: for.cond.cleanup: ; CHECK-NEXT: [[DOTLCSSA10_LCSSA:%.*]] = phi i16 [ [[TMP2_1:%.*]], [[FOR_COND_CLEANUP3_1:%.*]] ] @@ -68,13 +61,11 @@ define i16 @partial_unroll(i16* %A) { ; CHECK-NEXT: ret i16 0 ; CHECK: for.cond.cleanup3: ; CHECK-NEXT: [[INC9:%.*]] = add nuw nsw i64 [[I_0]], 1 -; CHECK-NEXT: [[PTR_1:%.*]] = getelementptr inbounds i16, i16* [[A]], i64 [[INC9]] +; CHECK-NEXT: [[PTR_1:%.*]] = getelementptr inbounds i16, i16* [[A:%.*]], i64 [[INC9]] ; CHECK-NEXT: [[TMP2_1]] = load i16, i16* [[PTR_1]], align 2 ; CHECK-NEXT: br label [[FOR_COND_CLEANUP3_1]] ; CHECK: for.cond.cleanup3.1: ; CHECK-NEXT: [[INC9_1:%.*]] = add nuw nsw i64 [[INC9]], 1 -; CHECK-NEXT: [[PTR_2:%.*]] = getelementptr inbounds i16, i16* [[A]], i64 [[INC9_1]] -; CHECK-NEXT: [[TMP2_2:%.*]] = load i16, i16* [[PTR_2]], align 2 ; CHECK-NEXT: [[CMP_2:%.*]] = icmp ult i64 [[INC9_1]], 200 ; CHECK-NEXT: br i1 [[CMP_2]], label [[FOR_COND_CLEANUP3_2]], label [[FOR_COND_CLEANUP:%.*]] ; CHECK: for.cond.cleanup3.2: diff --git a/llvm/test/Transforms/LoopUnroll/unroll-unconditional-latch.ll b/llvm/test/Transforms/LoopUnroll/unroll-unconditional-latch.ll index 89d1144314b4..4970a9080940 100644 --- a/llvm/test/Transforms/LoopUnroll/unroll-unconditional-latch.ll +++ b/llvm/test/Transforms/LoopUnroll/unroll-unconditional-latch.ll @@ -68,7 +68,6 @@ define double @test_with_lcssa(double %arg1, double* %arg2) { ; CHECK-NEXT: [[RES_LCSSA:%.*]] = phi double [ [[RES_1]], [[LOOP_LATCH]] ] ; CHECK-NEXT: ret double [[RES_LCSSA]] ; CHECK: loop.latch.1: -; CHECK-NEXT: [[PTR_1:%.*]] = getelementptr inbounds double, double* [[ARG2]], i64 2 ; CHECK-NEXT: unreachable ; diff --git a/llvm/test/Transforms/LoopUnrollAndJam/unroll-and-jam.ll b/llvm/test/Transforms/LoopUnrollAndJam/unroll-and-jam.ll index 5086b2019ced..88fdd43fafff 100644 --- a/llvm/test/Transforms/LoopUnrollAndJam/unroll-and-jam.ll +++ b/llvm/test/Transforms/LoopUnrollAndJam/unroll-and-jam.ll @@ -141,8 +141,6 @@ target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64" ; CHECK-NEXT: [[ADD_LCSSA_EPIL_2:%.*]] = phi i32 [ [[ADD_EPIL_2]], [[FOR_INNER_EPIL_2]] ] ; CHECK-NEXT: [[ARRAYIDX6_EPIL_2:%.*]] = getelementptr inbounds i32, i32* [[A]], i32 [[ADD8_EPIL_1]] ; CHECK-NEXT: store i32 [[ADD_LCSSA_EPIL_2]], i32* [[ARRAYIDX6_EPIL_2]], align 4, !tbaa !0 -; CHECK-NEXT: [[ADD8_EPIL_2:%.*]] = add nuw i32 [[ADD8_EPIL_1]], 1 -; CHECK-NEXT: [[EPIL_ITER_SUB_2:%.*]] = sub i32 [[EPIL_ITER_SUB_1]], 1 ; CHECK-NEXT: br label [[FOR_END_LOOPEXIT_EPILOG_LCSSA]] define void @test1(i32 %I, i32 %J, i32* noalias nocapture %A, i32* noalias nocapture readonly %B) #0 { entry: