| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -passes=rel-lookup-table-converter -mtriple=x86_64-linux -S | FileCheck %s |
| ; RUN: opt < %s -passes=rel-lookup-table-converter -mtriple=i386-unknown-unknown -relocation-model=pic -S | FileCheck %s |
| ; RUN: opt < %s -passes=rel-lookup-table-converter -mtriple=x86_64-linux -relocation-model=pic -code-model=medium -S | FileCheck %s |
| ; RUN: opt < %s -passes=rel-lookup-table-converter -mtriple=x86_64-linux -relocation-model=pic -code-model=large -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" |
| |
| @.str = private unnamed_addr constant [5 x i8] c"zero\00", align 1 |
| @.str.1 = private unnamed_addr constant [4 x i8] c"one\00", align 1 |
| @.str.2 = private unnamed_addr constant [4 x i8] c"two\00", align 1 |
| @.str.3 = private unnamed_addr constant [8 x i8] c"default\00", align 1 |
| |
| @switch.table.string_table = private unnamed_addr constant [3 x i8*] |
| [ |
| i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0), |
| i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), |
| i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0) |
| ], align 8 |
| |
| ; Switch lookup table |
| ; CHECK: @switch.table.string_table = private unnamed_addr constant [3 x i8*] |
| ; CHECK-SAME: [ |
| ; CHECK-SAME: i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0), |
| ; CHECK-SAME: i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), |
| ; CHECK-SAME: i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0) |
| ; CHECK-SAME: ], align 8 |
| |
| ; ; Relative switch lookup table for strings |
| define i8* @string_table(i32 %cond) { |
| ; CHECK-LABEL: @string_table( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP0:%.*]] = icmp ult i32 [[COND:%.*]], 3 |
| ; CHECK-NEXT: br i1 [[TMP0]], label [[SWITCH_LOOKUP:%.*]], label [[RETURN:%.*]] |
| ; CHECK: switch.lookup: |
| ; CHECK-NEXT: [[SWITCH_GEP:%.*]] = getelementptr inbounds [3 x i8*], [3 x i8*]* @switch.table.string_table, i32 0, i32 [[COND]] |
| ; CHECK-NEXT: [[SWITCH_LOAD:%.*]] = load i8*, i8** [[SWITCH_GEP]], align 8 |
| ; CHECK-NEXT: ret i8* [[SWITCH_LOAD]] |
| ; CHECK: return: |
| ; CHECK-NEXT: ret i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.3, i64 0, i64 0) |
| |
| entry: |
| %0 = icmp ult i32 %cond, 3 |
| br i1 %0, label %switch.lookup, label %return |
| |
| switch.lookup: ; preds = %entry |
| %switch.gep = getelementptr inbounds [3 x i8*], [3 x i8*]* @switch.table.string_table, i32 0, i32 %cond |
| %switch.load = load i8*, i8** %switch.gep, align 8 |
| ret i8* %switch.load |
| |
| return: ; preds = %entry |
| ret i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.3, i64 0, i64 0) |
| } |
