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