| ; RUN: llc -verify-machineinstrs -mtriple=aarch64-none-linux-gnu %s -filetype=obj -o %t |
| ; RUN: llvm-objdump -s %t | FileCheck %s |
| @var = global i32 0 |
| |
| declare void @bar() |
| |
| define i64 @check_largest_class(i32 %in) { |
| %res = load i32* @var |
| call void @bar() |
| %ext = zext i32 %res to i64 |
| ret i64 %ext |
| } |
| |
| ; The really key points we're checking here are: |
| ; * Return register is x30. |
| ; * Pointer format is 0x1b (GNU doesn't appear to understand others). |
| |
| ; The rest is largely incidental, but not expected to change regularly. |
| |
| ; Output is: |
| |
| ; CHECK: Contents of section .eh_frame: |
| ; CHECK-NEXT: 0000 10000000 00000000 017a5200 017c1e01 .........zR..|.. |
| ; CHECK-NEXT: 0010 1b0c1f00 18000000 18000000 00000000 ................ |
| |
| |
| ; Won't check the rest, it's rather incidental. |
| ; 0020 24000000 00440c1f 10449e02 93040000 $....D...D...... |
| |
| |
| ; The first CIE: |
| ; ------------------- |
| ; 10000000: length of first CIE = 0x10 |
| ; 00000000: This is a CIE |
| ; 01: version = 0x1 |
| ; 7a 52 00: augmentation string "zR" -- pointer format is specified |
| ; 01: code alignment factor 1 |
| ; 7c: data alignment factor -4 |
| ; 1e: return address register 30 (== x30). |
| ; 01: 1 byte of augmentation |
| ; 1b: pointer format 1b: DW_EH_PE_pcrel | DW_EH_PE_sdata4 |
| ; 0c 1f 00: initial instructions: "DW_CFA_def_cfa x31 ofs 0" in this case |
| |
| ; Next the FDE: |
| ; ------------- |
| ; 18000000: FDE length 0x18 |
| ; 18000000: Uses CIE 0x18 backwards (only coincidentally same as above) |
| ; 00000000: PC begin for this FDE is at 00000000 (relocation is applied here) |
| ; 24000000: FDE applies up to PC begin+0x24 |
| ; 00: Augmentation string length 0 for this FDE |
| ; Rest: call frame instructions |
