1; Test for generation of jump table for ropi/rwpi 2 3; RUN: llc -relocation-model=static -mtriple=armv7a--none-eabi -disable-block-placement < %s | FileCheck %s --check-prefix=CHECK --check-prefix=ARM --check-prefix=ARM_ABS 4; RUN: llc -relocation-model=ropi -mtriple=armv7a--none-eabi -disable-block-placement < %s | FileCheck %s --check-prefix=CHECK --check-prefix=ARM --check-prefix=ARM_PC 5; RUN: llc -relocation-model=ropi-rwpi -mtriple=armv7a--none-eabi -disable-block-placement < %s | FileCheck %s --check-prefix=CHECK --check-prefix=ARM --check-prefix=ARM_PC 6 7; RUN: llc -relocation-model=static -mtriple=thumbv7m--none-eabi -disable-block-placement < %s | FileCheck %s --check-prefix=CHECK --check-prefix=THUMB2 8; RUN: llc -relocation-model=ropi -mtriple=thumbv7m--none-eabi -disable-block-placement < %s | FileCheck %s --check-prefix=CHECK --check-prefix=THUMB2 9; RUN: llc -relocation-model=ropi-rwpi -mtriple=thumbv7m--none-eabi -disable-block-placement < %s | FileCheck %s --check-prefix=CHECK --check-prefix=THUMB2 10 11; RUN: llc -relocation-model=static -mtriple=thumbv6m--none-eabi -disable-block-placement < %s | FileCheck %s --check-prefix=CHECK --check-prefix=THUMB1 12; RUN: llc -relocation-model=ropi -mtriple=thumbv6m--none-eabi -disable-block-placement < %s | FileCheck %s --check-prefix=CHECK --check-prefix=THUMB1 13; RUN: llc -relocation-model=ropi-rwpi -mtriple=thumbv6m--none-eabi -disable-block-placement < %s | FileCheck %s --check-prefix=CHECK --check-prefix=THUMB1 14 15 16declare void @exit0() 17declare void @exit1() 18declare void @exit2() 19declare void @exit3() 20declare void @exit4() 21define void @jump_table(i32 %val) { 22entry: 23 switch i32 %val, label %default [ i32 1, label %lab1 24 i32 2, label %lab2 25 i32 3, label %lab3 26 i32 4, label %lab4 ] 27 28default: 29 tail call void @exit0() 30 ret void 31 32lab1: 33 tail call void @exit1() 34 ret void 35 36lab2: 37 tail call void @exit2() 38 ret void 39 40lab3: 41 tail call void @exit3() 42 ret void 43 44lab4: 45 tail call void @exit4() 46 ret void 47 48; CHECK-LABEL: jump_table: 49 50; ARM: adr r[[R_TAB_BASE:[0-9]+]], [[LJTI:\.LJTI[0-9]+_[0-9]+]] 51; ARM_ABS: ldr pc, [r[[R_TAB_BASE]], r{{[0-9]+}}, lsl #2] 52; ARM_PC: ldr r[[R_OFFSET:[0-9]+]], [r[[R_TAB_BASE]], r{{[0-9]+}}, lsl #2] 53; ARM_PC: add pc, r[[R_TAB_BASE]], r[[R_OFFSET]] 54; ARM: [[LJTI]] 55; ARM_ABS: .long [[LBB1:\.LBB[0-9]+_[0-9]+]] 56; ARM_ABS: .long [[LBB2:\.LBB[0-9]+_[0-9]+]] 57; ARM_ABS: .long [[LBB3:\.LBB[0-9]+_[0-9]+]] 58; ARM_ABS: .long [[LBB4:\.LBB[0-9]+_[0-9]+]] 59; ARM_PC: .long [[LBB1:\.LBB[0-9]+_[0-9]+]]-[[LJTI]] 60; ARM_PC: .long [[LBB2:\.LBB[0-9]+_[0-9]+]]-[[LJTI]] 61; ARM_PC: .long [[LBB3:\.LBB[0-9]+_[0-9]+]]-[[LJTI]] 62; ARM_PC: .long [[LBB4:\.LBB[0-9]+_[0-9]+]]-[[LJTI]] 63; ARM: [[LBB1]] 64; ARM-NEXT: b exit1 65; ARM: [[LBB2]] 66; ARM-NEXT: b exit2 67; ARM: [[LBB3]] 68; ARM-NEXT: b exit3 69; ARM: [[LBB4]] 70; ARM-NEXT: b exit4 71 72; THUMB2: [[LCPI:\.LCPI[0-9]+_[0-9]+]]: 73; THUMB2: tbb [pc, r{{[0-9]+}}] 74; THUMB2: .byte ([[LBB1:\.LBB[0-9]+_[0-9]+]]-([[LCPI]]+4))/2 75; THUMB2: .byte ([[LBB2:\.LBB[0-9]+_[0-9]+]]-([[LCPI]]+4))/2 76; THUMB2: .byte ([[LBB3:\.LBB[0-9]+_[0-9]+]]-([[LCPI]]+4))/2 77; THUMB2: .byte ([[LBB4:\.LBB[0-9]+_[0-9]+]]-([[LCPI]]+4))/2 78; THUMB2: [[LBB1]] 79; THUMB2-NEXT: b exit1 80; THUMB2: [[LBB2]] 81; THUMB2-NEXT: b exit2 82; THUMB2: [[LBB3]] 83; THUMB2-NEXT: b exit3 84; THUMB2: [[LBB4]] 85; THUMB2-NEXT: b exit4 86 87; THUMB1: .p2align 2 88; THUMB1: add r[[x:[0-9]+]], pc 89; THUMB1: ldrb r[[x]], [r[[x]], #4] 90; THUMB1: lsls r[[x]], r[[x]], #1 91; THUMB1: [[LCPI:\.LCPI[0-9]+_[0-9]+]]: 92; THUMB1: add pc, r[[x]] 93; THUMB1: .p2align 2 94; THUMB1: .byte ([[LBB1:\.LBB[0-9]+_[0-9]+]]-([[LCPI]]+4))/2 95; THUMB1: .byte ([[LBB2:\.LBB[0-9]+_[0-9]+]]-([[LCPI]]+4))/2 96; THUMB1: .byte ([[LBB3:\.LBB[0-9]+_[0-9]+]]-([[LCPI]]+4))/2 97; THUMB1: .byte ([[LBB4:\.LBB[0-9]+_[0-9]+]]-([[LCPI]]+4))/2 98; THUMB1: [[LBB1]] 99; THUMB1-NEXT: bl exit1 100; THUMB1: [[LBB2]] 101; THUMB1-NEXT: bl exit2 102; THUMB1: [[LBB3]] 103; THUMB1-NEXT: bl exit3 104; THUMB1: [[LBB4]] 105; THUMB1-NEXT: bl exit4 106} 107