xref: /llvm-project/llvm/test/Transforms/LoopLoadElim/loop-i1-count.ll (revision 055fb7795aa219a3d274d280ec9129784f169f56)
17ee30a0eSChang-Sun Lin Jr; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
27ee30a0eSChang-Sun Lin Jr; RUN: opt -S -passes=loop-load-elim %s | FileCheck %s
37ee30a0eSChang-Sun Lin Jr
47ee30a0eSChang-Sun Lin Jr; The backedge taken count of this loop is an i1 type, and the IV is i8.
57ee30a0eSChang-Sun Lin Jr; The math in LoopAccessAnalysis was rounding the type sizes to bytes and
67ee30a0eSChang-Sun Lin Jr; believing them equal, causing a size mismatch.
77ee30a0eSChang-Sun Lin Jr
87ee30a0eSChang-Sun Lin Jrtarget datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
97ee30a0eSChang-Sun Lin Jr
107ee30a0eSChang-Sun Lin Jr@a = external dso_local local_unnamed_addr global [1 x i32], align 4
117ee30a0eSChang-Sun Lin Jr
127ee30a0eSChang-Sun Lin Jrdefine dso_local void @test(i8 %inc) local_unnamed_addr {
137ee30a0eSChang-Sun Lin Jr; CHECK-LABEL: @test(
147ee30a0eSChang-Sun Lin Jr; CHECK-NEXT:  entry:
157ee30a0eSChang-Sun Lin Jr; CHECK-NEXT:    br label [[FOR_COND3:%.*]]
167ee30a0eSChang-Sun Lin Jr; CHECK:       for.cond3:
177ee30a0eSChang-Sun Lin Jr; CHECK-NEXT:    [[H_0:%.*]] = phi i8 [ 0, [[ENTRY:%.*]] ], [ [[ADD:%.*]], [[COND_END_FOR_COND_CLEANUP_LOOPEXIT_CRIT_EDGE:%.*]] ]
187ee30a0eSChang-Sun Lin Jr; CHECK-NEXT:    [[IDXPROM11:%.*]] = sext i8 [[H_0]] to i64
19*055fb779SNikita Popov; CHECK-NEXT:    [[ARRAYIDX27:%.*]] = getelementptr inbounds [1 x i32], ptr @a, i64 0, i64 [[IDXPROM11]]
207ee30a0eSChang-Sun Lin Jr; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
217ee30a0eSChang-Sun Lin Jr; CHECK:       cond.end.for.cond.cleanup.loopexit_crit_edge:
227ee30a0eSChang-Sun Lin Jr; CHECK-NEXT:    [[ADD]] = add i8 [[H_0]], [[INC:%.*]]
237ee30a0eSChang-Sun Lin Jr; CHECK-NEXT:    br label [[FOR_COND3]]
247ee30a0eSChang-Sun Lin Jr; CHECK:       for.body:
25*055fb779SNikita Popov; CHECK-NEXT:    store i32 0, ptr [[ARRAYIDX27]], align 4
267ee30a0eSChang-Sun Lin Jr; CHECK-NEXT:    br i1 true, label [[COND_END_FOR_COND_CLEANUP_LOOPEXIT_CRIT_EDGE]], label [[FOR_BODY]]
277ee30a0eSChang-Sun Lin Jr;
287ee30a0eSChang-Sun Lin Jrentry:
297ee30a0eSChang-Sun Lin Jr  br label %for.cond3
307ee30a0eSChang-Sun Lin Jr
317ee30a0eSChang-Sun Lin Jrfor.cond3:                                        ; preds = %cond.end.for.cond.cleanup.loopexit_crit_edge, %entry
327ee30a0eSChang-Sun Lin Jr  %h.0 = phi i8 [ 0, %entry ], [ %add, %cond.end.for.cond.cleanup.loopexit_crit_edge ]
337ee30a0eSChang-Sun Lin Jr  %idxprom11 = sext i8 %h.0 to i64
34*055fb779SNikita Popov  %arrayidx27 = getelementptr inbounds [1 x i32], ptr @a, i64 0, i64 %idxprom11
357ee30a0eSChang-Sun Lin Jr  br label %for.body
367ee30a0eSChang-Sun Lin Jr
377ee30a0eSChang-Sun Lin Jrcond.end.for.cond.cleanup.loopexit_crit_edge:     ; preds = %for.body
387ee30a0eSChang-Sun Lin Jr  %add = add i8 %h.0, %inc
397ee30a0eSChang-Sun Lin Jr  br label %for.cond3
407ee30a0eSChang-Sun Lin Jr
417ee30a0eSChang-Sun Lin Jrfor.body:                                         ; preds = %for.body, %for.cond3
42*055fb779SNikita Popov  store i32 0, ptr %arrayidx27, align 4
437ee30a0eSChang-Sun Lin Jr  br i1 true, label %cond.end.for.cond.cleanup.loopexit_crit_edge, label %for.body
447ee30a0eSChang-Sun Lin Jr}
45