forked from OSchip/llvm-project
66 lines
2.0 KiB
LLVM
66 lines
2.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes='require<profile-summary>,function(loop-mssa(simple-loop-unswitch<nontrivial>))' -S | FileCheck %s
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; This test checks for a crash.
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; RUN: opt < %s -passes=simple-loop-unswitch -aa-pipeline= -disable-output
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declare i32 @a()
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declare i32 @b()
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; Check loops in cold functions will not be applied non-trivial loop unswitch
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define void @f1(i32 %i, i1 %cond, i1 %hot_cond, i1 %cold_cond, i1* %ptr) !prof !0 {
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; CHECK-LABEL: @f1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[COLD_LOOP_BEGIN:%.*]]
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; CHECK: cold_loop_begin:
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; CHECK-NEXT: br i1 [[COND:%.*]], label [[COLD_LOOP_A:%.*]], label [[COLD_LOOP_B:%.*]]
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; CHECK: cold_loop_a:
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; CHECK-NEXT: [[TMP0:%.*]] = call i32 @a()
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; CHECK-NEXT: br label [[COLD_LOOP_LATCH:%.*]]
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; CHECK: cold_loop_b:
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; CHECK-NEXT: [[TMP1:%.*]] = call i32 @b()
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; CHECK-NEXT: br label [[COLD_LOOP_LATCH]]
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; CHECK: cold_loop_latch:
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; CHECK-NEXT: [[V2:%.*]] = load i1, i1* [[PTR:%.*]], align 1
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; CHECK-NEXT: br i1 [[V2]], label [[COLD_LOOP_BEGIN]], label [[COLD_LOOP_EXIT:%.*]]
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; CHECK: cold_loop_exit:
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; CHECK-NEXT: ret void
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;
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entry:
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br label %cold_loop_begin
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cold_loop_begin:
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br i1 %cond, label %cold_loop_a, label %cold_loop_b
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cold_loop_a:
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call i32 @a()
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br label %cold_loop_latch
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cold_loop_b:
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call i32 @b()
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br label %cold_loop_latch
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cold_loop_latch:
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%v2 = load i1, i1* %ptr
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br i1 %v2, label %cold_loop_begin, label %cold_loop_exit
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cold_loop_exit:
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ret void
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}
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!llvm.module.flags = !{!1}
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!0 = !{!"function_entry_count", i64 0}
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!1 = !{i32 1, !"ProfileSummary", !2}
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!2 = !{!3, !4, !5, !6, !7, !8, !9, !10}
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!3 = !{!"ProfileFormat", !"InstrProf"}
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!4 = !{!"TotalCount", i64 10000}
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!5 = !{!"MaxCount", i64 10}
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!6 = !{!"MaxInternalCount", i64 1}
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!7 = !{!"MaxFunctionCount", i64 1000}
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!8 = !{!"NumCounts", i64 3}
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!9 = !{!"NumFunctions", i64 3}
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!10 = !{!"DetailedSummary", !11}
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!11 = !{!12, !13, !14}
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!12 = !{i32 10000, i64 100, i32 1}
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!13 = !{i32 999000, i64 100, i32 1}
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!14 = !{i32 999999, i64 1, i32 2}
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