| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; REQUIRES: x86-registered-target |
| ; RUN: opt < %s -passes=rel-lookup-table-converter -relocation-model=pic -opaque-pointers -S | FileCheck %s |
| target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| @a = internal constant i32 0, align 4 |
| @b = internal constant i32 0, align 4 |
| @c = internal constant i32 0, align 4 |
| |
| @table1 = private unnamed_addr constant [3 x ptr] [ptr @a, ptr @b, ptr @c], align 8 |
| @table2 = private unnamed_addr constant [3 x ptr] [ptr @a, ptr @b, ptr @c], align 8 |
| @table3 = private unnamed_addr constant [3 x ptr] [ptr @a, ptr @b, ptr @c], align 8 |
| |
| define ptr @test(i32 %cond) { |
| ; CHECK-LABEL: @test( |
| ; CHECK-NEXT: [[RELTABLE_SHIFT:%.*]] = shl i32 [[COND:%.*]], 2 |
| ; CHECK-NEXT: [[RELTABLE_INTRINSIC:%.*]] = call ptr @llvm.load.relative.i32(ptr @reltable.test, i32 [[RELTABLE_SHIFT]]) |
| ; CHECK-NEXT: ret ptr [[RELTABLE_INTRINSIC]] |
| ; |
| %switch.gep = getelementptr inbounds [3 x ptr], ptr @table1, i32 0, i32 %cond |
| %switch.load = load ptr, ptr %switch.gep, align 8 |
| ret ptr %switch.load |
| } |
| |
| define i32 @test_different_load_type(i32 %cond) { |
| ; CHECK-LABEL: @test_different_load_type( |
| ; CHECK-NEXT: [[SWITCH_GEP:%.*]] = getelementptr inbounds [3 x ptr], ptr @table2, i32 0, i32 [[COND:%.*]] |
| ; CHECK-NEXT: [[SWITCH_LOAD:%.*]] = load i32, ptr [[SWITCH_GEP]], align 8 |
| ; CHECK-NEXT: ret i32 [[SWITCH_LOAD]] |
| ; |
| %switch.gep = getelementptr inbounds [3 x ptr], ptr @table2, i32 0, i32 %cond |
| %switch.load = load i32, ptr %switch.gep, align 8 |
| ret i32 %switch.load |
| } |
| |
| define i8 @test_different_gep_type(i32 %cond) { |
| ; CHECK-LABEL: @test_different_gep_type( |
| ; CHECK-NEXT: [[SWITCH_GEP:%.*]] = getelementptr inbounds [3 x i8], ptr @table3, i32 0, i32 [[COND:%.*]] |
| ; CHECK-NEXT: [[SWITCH_LOAD:%.*]] = load i8, ptr [[SWITCH_GEP]], align 8 |
| ; CHECK-NEXT: ret i8 [[SWITCH_LOAD]] |
| ; |
| %switch.gep = getelementptr inbounds [3 x i8], ptr @table3, i32 0, i32 %cond |
| %switch.load = load i8, ptr %switch.gep, align 8 |
| ret i8 %switch.load |
| } |
| |
| !llvm.module.flags = !{!0, !1} |
| !0 = !{i32 7, !"PIC Level", i32 2} |
| !1 = !{i32 1, !"Code Model", i32 1} |
| !4 = !{!"any pointer", !5, i64 0} |
| !5 = !{!"omnipotent char", !6, i64 0} |
| !6 = !{!"Simple C/C++ TBAA"} |