test/MC/ARM/eh-directive-integrated-test.s

   1 @ Integrated test for ARM unwind directive parser and assembler.
   2
   3 @ This is a simplified real world test case generated from this C++ code
   4 @ (with and without -fomit-frame-pointer)
   5 @
   6 @   extern void print(int, int, int, int, int);
   7 @   extern void print(double, double, double, double, double);
   8 @
   9 @   void test(int a, int b, int c, int d, int e,
  10 @             double m, double n, double p, double q, double r) {
  11 @     try {
  12 @       print(a, b, c, d, e);
  13 @     } catch (...) {
  14 @       print(m, n, p, q, r);
  15 @     }
  16 @   }
  17 @
  18 @ This test case should check the unwind opcode to adjust the opcode and
  19 @ restore the general-purpose and VFP registers.
  20
  21
  22 @ RUN: llvm-mc %s -triple=armv7-unknown-linux-gnueabi -filetype=obj -o - \
  23 @ RUN:   | llvm-readobj -S --sd | FileCheck %s
  24
  25
  26 @-------------------------------------------------------------------------------
  27 @ Assembly without frame pointer elimination
  28 @-------------------------------------------------------------------------------
  29         .syntax unified
  30         .section        .TEST1
  31         .globl  func1
  32         .align  2
  33         .type   func1,%function
  34 func1:
  35         .fnstart
  36         .save   {r4, r11, lr}
  37         push    {r4, r11, lr}
  38         .setfp  r11, sp, #4
  39         add     r11, sp, #4
  40         .vsave  {d8, d9, d10, d11, d12}
  41         vpush   {d8, d9, d10, d11, d12}
  42         .pad    #28
  43         sub     sp, sp, #28
  44         sub     sp, r11, #44
  45         vpop    {d8, d9, d10, d11, d12}
  46         pop     {r4, r11, pc}
  47 .Ltmp1:
  48         .size   func1, .Ltmp1-func1
  49         .globl  __gxx_personality_v0
  50         .personality __gxx_personality_v0
  51         .handlerdata
  52         .fnend
  53
  54 @ CHECK: Section {
  55 @ CHECK:   Name: .ARM.extab.TEST1
  56 @ CHECK:   SectionData (
  57 @ CHECK:     0000: 00000000 C94A9B01 B0818484           |.....J......|
  58 @ CHECK:   )
  59 @ CHECK: }
  60
  61
  62
  63 @-------------------------------------------------------------------------------
  64 @ Assembly with frame pointer elimination
  65 @-------------------------------------------------------------------------------
  66         .section        .TEST2
  67         .globl  func2
  68         .align  2
  69         .type   func2,%function
  70 func2:
  71         .fnstart
  72         .save   {r4, lr}
  73         push    {r4, lr}
  74         .vsave  {d8, d9, d10, d11, d12}
  75         vpush   {d8, d9, d10, d11, d12}
  76         .pad    #24
  77         sub     sp, sp, #24
  78         add     sp, sp, #24
  79         vpop    {d8, d9, d10, d11, d12}
  80         pop     {r4, pc}
  81 .Ltmp2:
  82         .size   func2, .Ltmp2-func2
  83         .globl  __gxx_personality_v0
  84         .personality __gxx_personality_v0
  85         .handlerdata
  86         .fnend
  87
  88 @ CHECK: Section {
  89 @ CHECK:   Name: .ARM.extab.TEST2
  90 @ CHECK:   SectionData (
  91 @ CHECK:     0000: 00000000 84C90501 B0B0B0A8           |............|
  92 @ CHECK:   )
  93 @ CHECK: }