42 lines
1.4 KiB
LLVM
42 lines
1.4 KiB
LLVM
; 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 <{ [1 x i8] }> <{ [1 x i8] c"A" }>, align 1
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@alloc1 = private unnamed_addr constant <{ [1 x i8] }> <{ [1 x i8] c"B" }>, align 1
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@alloc2 = private unnamed_addr constant <{ [1 x i8] }> <{ [1 x i8] c"C" }>, align 1
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define { ptr, i64 } @switch_to_lookup_bitcast(i8 %0) unnamed_addr {
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; CHECK-LABEL: @switch_to_lookup_bitcast(
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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_bitcast, 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 [ @alloc0, %bb0 ], [ @alloc1, %bb1 ], [ @alloc2, %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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