wanglei c2ee21cf3f [LoongArch] Add some fixups and relocations
This patch only add %pc_hi20/%pc_lo12/%plt relocations in order
to be able to generate gnu ld linkable relocation file for the
`hello world` IR :
```
@.str = private unnamed_addr constant [14 x i8] c"Hello world!\0A\00", align 1

define dso_local signext i32 @main() nounwind {
entry:
  %call = call signext i32 (ptr, ...) @printf(ptr noundef @.str)
  ret i32 0
}

declare dso_local signext i32 @printf(ptr noundef, ...)
```

This patch also updates some test cases due to new modifiers introduced.
New test: test/MC/LoongArch/Relocations/relocations.s

Differential Revision: https://reviews.llvm.org/D132108
2022-08-20 11:19:24 +08:00

38 lines
1.2 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc --mtriple=loongarch32 < %s | FileCheck --check-prefix=LA32 %s
; RUN: llc --mtriple=loongarch64 < %s | FileCheck --check-prefix=LA64 %s
define void @dwarf() {
; LA32-LABEL: dwarf:
; LA32: # %bb.0: # %entry
; LA32-NEXT: addi.w $sp, $sp, -16
; LA32-NEXT: .cfi_def_cfa_offset 16
; LA32-NEXT: st.w $ra, $sp, 12 # 4-byte Folded Spill
; LA32-NEXT: .cfi_offset 1, -4
; LA32-NEXT: addi.w $a0, $sp, 16
; LA32-NEXT: bl %plt(foo)
; LA32-NEXT: ld.w $ra, $sp, 12 # 4-byte Folded Reload
; LA32-NEXT: addi.w $sp, $sp, 16
; LA32-NEXT: ret
;
; LA64-LABEL: dwarf:
; LA64: # %bb.0: # %entry
; LA64-NEXT: addi.d $sp, $sp, -16
; LA64-NEXT: .cfi_def_cfa_offset 16
; LA64-NEXT: st.d $ra, $sp, 8 # 8-byte Folded Spill
; LA64-NEXT: .cfi_offset 1, -8
; LA64-NEXT: addi.d $a0, $sp, 16
; LA64-NEXT: bl %plt(foo)
; LA64-NEXT: ld.d $ra, $sp, 8 # 8-byte Folded Reload
; LA64-NEXT: addi.d $sp, $sp, 16
; LA64-NEXT: ret
entry:
%0 = call ptr @llvm.eh.dwarf.cfa(i32 0)
call void @foo(ptr %0)
ret void
}
declare void @foo(ptr)
declare ptr @llvm.eh.dwarf.cfa(i32) nounwind