135 lines
4.9 KiB
LLVM
135 lines
4.9 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --scrub-attributes
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; RUN: opt -passes=simplifycfg --switch-to-lookup -S < %s | FileCheck %s
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target triple = "x86_64-unknown-linux-gnu"
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@alloc0 = private unnamed_addr constant <{ [2 x i8] }> <{ [2 x i8] c"A1" }>, align 1
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@alloc1 = private unnamed_addr constant <{ [2 x i8] }> <{ [2 x i8] c"B2" }>, align 1
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@alloc2 = private unnamed_addr constant <{ [2 x i8] }> <{ [2 x i8] c"C3" }>, align 1
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define { ptr, i64 } @switch_to_lookup_gep(i8 %0) unnamed_addr {
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; CHECK-LABEL: @switch_to_lookup_gep(
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; CHECK-NEXT: start:
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; CHECK-NEXT: [[SWITCH_GEP:%.*]] = getelementptr inbounds [3 x ptr], ptr @switch.table.switch_to_lookup_gep, i32 0, i8 [[TMP0:%.*]]
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; CHECK-NEXT: [[SWITCH_LOAD:%.*]] = load ptr, ptr [[SWITCH_GEP]], align 8
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; CHECK-NEXT: [[TMP1:%.*]] = insertvalue { ptr, i64 } undef, ptr [[SWITCH_LOAD]], 0
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; CHECK-NEXT: [[TMP2:%.*]] = insertvalue { ptr, i64 } [[TMP1]], i64 1, 1
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; CHECK-NEXT: ret { ptr, i64 } [[TMP2]]
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;
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start:
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switch i8 %0, label %default [
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i8 0, label %bb0
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i8 1, label %bb1
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i8 2, label %bb2
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]
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bb0:
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br label %end
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bb1:
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br label %end
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bb2:
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br label %end
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default:
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unreachable
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end:
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%.sroa.0.0 = phi ptr [ getelementptr inbounds (<{ [2 x i8] }>, ptr @alloc0, i32 0, i32 0, i32 1), %bb0 ], [ getelementptr inbounds (<{ [2 x i8] }>, ptr @alloc1, i32 0, i32 0, i32 1), %bb1 ], [ getelementptr inbounds (<{ [2 x i8] }>, ptr @alloc2, i32 0, i32 0, i32 1), %bb2 ]
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%1 = insertvalue { ptr, i64 } undef, ptr %.sroa.0.0, 0
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%2 = insertvalue { ptr, i64 } %1, i64 1, 1
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ret { ptr, i64 } %2
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}
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define { ptr, i64 } @switch_to_lookup_gep_oob(i8 %0) unnamed_addr {
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; CHECK-LABEL: @switch_to_lookup_gep_oob(
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; CHECK-NEXT: start:
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; CHECK-NEXT: switch i8 [[TMP0:%.*]], label [[DEFAULT:%.*]] [
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; CHECK-NEXT: i8 0, label [[END:%.*]]
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; CHECK-NEXT: i8 1, label [[BB1:%.*]]
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; CHECK-NEXT: i8 2, label [[BB2:%.*]]
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; CHECK-NEXT: ]
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; CHECK: bb1:
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; CHECK-NEXT: br label [[END]]
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; CHECK: bb2:
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; CHECK-NEXT: br label [[END]]
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; CHECK: default:
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; CHECK-NEXT: unreachable
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; CHECK: end:
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; CHECK-NEXT: [[DOTSROA_0_0:%.*]] = phi ptr [ getelementptr (<{ [2 x i8] }>, ptr @alloc1, i32 0, i32 0, i32 4), [[BB1]] ], [ getelementptr (<{ [2 x i8] }>, ptr @alloc2, i32 0, i32 0, i32 4), [[BB2]] ], [ getelementptr (<{ [2 x i8] }>, ptr @alloc0, i32 0, i32 0, i32 4), [[START:%.*]] ]
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; CHECK-NEXT: [[TMP1:%.*]] = insertvalue { ptr, i64 } undef, ptr [[DOTSROA_0_0]], 0
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; CHECK-NEXT: [[TMP2:%.*]] = insertvalue { ptr, i64 } [[TMP1]], i64 1, 1
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; CHECK-NEXT: ret { ptr, i64 } [[TMP2]]
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;
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start:
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switch i8 %0, label %default [
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i8 0, label %bb0
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i8 1, label %bb1
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i8 2, label %bb2
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]
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bb0:
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br label %end
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bb1:
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br label %end
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bb2:
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br label %end
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default:
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unreachable
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end:
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%.sroa.0.0 = phi ptr [ getelementptr (<{ [2 x i8] }>, ptr @alloc0, i32 0, i32 0, i32 4), %bb0 ], [ getelementptr (<{ [2 x i8] }>, ptr @alloc1, i32 0, i32 0, i32 4), %bb1 ], [ getelementptr (<{ [2 x i8] }>, ptr @alloc2, i32 0, i32 0, i32 4), %bb2 ]
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%1 = insertvalue { ptr, i64 } undef, ptr %.sroa.0.0, 0
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%2 = insertvalue { ptr, i64 } %1, i64 1, 1
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ret { ptr, i64 } %2
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}
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define { ptr, i64 } @switch_to_lookup_gep_ptrtoint(i8 %0) unnamed_addr {
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; CHECK-LABEL: @switch_to_lookup_gep_ptrtoint(
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; CHECK-NEXT: start:
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; CHECK-NEXT: switch i8 [[TMP0:%.*]], label [[DEFAULT:%.*]] [
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; CHECK-NEXT: i8 0, label [[END:%.*]]
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; CHECK-NEXT: i8 1, label [[BB1:%.*]]
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; CHECK-NEXT: i8 2, label [[BB2:%.*]]
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; CHECK-NEXT: ]
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; CHECK: bb1:
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; CHECK-NEXT: br label [[END]]
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; CHECK: bb2:
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; CHECK-NEXT: br label [[END]]
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; CHECK: default:
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; CHECK-NEXT: unreachable
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; CHECK: end:
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; CHECK-NEXT: [[DOTSROA_0_0:%.*]] = phi ptr [ getelementptr (<{ [2 x i8] }>, ptr @alloc1, i32 0, i32 0, i64 ptrtoint (ptr @alloc0 to i64)), [[BB1]] ], [ getelementptr (<{ [2 x i8] }>, ptr @alloc2, i32 0, i32 0, i64 ptrtoint (ptr @alloc0 to i64)), [[BB2]] ], [ getelementptr (<{ [2 x i8] }>, ptr @alloc0, i32 0, i32 0, i64 ptrtoint (ptr @alloc0 to i64)), [[START:%.*]] ]
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; CHECK-NEXT: [[TMP1:%.*]] = insertvalue { ptr, i64 } undef, ptr [[DOTSROA_0_0]], 0
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; CHECK-NEXT: [[TMP2:%.*]] = insertvalue { ptr, i64 } [[TMP1]], i64 1, 1
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; CHECK-NEXT: ret { ptr, i64 } [[TMP2]]
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;
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start:
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switch i8 %0, label %default [
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i8 0, label %bb0
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i8 1, label %bb1
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i8 2, label %bb2
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]
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bb0:
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br label %end
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bb1:
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br label %end
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bb2:
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br label %end
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default:
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unreachable
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end:
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%.sroa.0.0 = phi ptr [ getelementptr (<{ [2 x i8] }>, ptr @alloc0, i32 0, i32 0, i64 ptrtoint (ptr @alloc0 to i64)), %bb0 ], [ getelementptr (<{ [2 x i8] }>, ptr @alloc1, i32 0, i32 0, i64 ptrtoint (ptr @alloc0 to i64)), %bb1 ], [ getelementptr (<{ [2 x i8] }>, ptr @alloc2, i32 0, i32 0, i64 ptrtoint (ptr @alloc0 to i64)), %bb2 ]
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%1 = insertvalue { ptr, i64 } undef, ptr %.sroa.0.0, 0
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%2 = insertvalue { ptr, i64 } %1, i64 1, 1
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ret { ptr, i64 } %2
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}
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