pic-models.ll
2.68 KB
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=riscv32 -relocation-model=static < %s \
; RUN: | FileCheck -check-prefix=RV32-STATIC %s
; RUN: llc -mtriple=riscv32 -relocation-model=pic < %s \
; RUN: | FileCheck -check-prefix=RV32-PIC %s
; RUN: llc -mtriple=riscv64 -relocation-model=static < %s \
; RUN: | FileCheck -check-prefix=RV64-STATIC %s
; RUN: llc -mtriple=riscv64 -relocation-model=pic < %s \
; RUN: | FileCheck -check-prefix=RV64-PIC %s
; Check basic lowering of PIC addressing.
; TODO: Check other relocation models?
@external_var = external global i32
@internal_var = internal global i32 42
; external address
define i32* @f1() nounwind {
; RV32-STATIC-LABEL: f1:
; RV32-STATIC: # %bb.0: # %entry
; RV32-STATIC-NEXT: lui a0, %hi(external_var)
; RV32-STATIC-NEXT: addi a0, a0, %lo(external_var)
; RV32-STATIC-NEXT: ret
;
; RV32-PIC-LABEL: f1:
; RV32-PIC: # %bb.0: # %entry
; RV32-PIC-NEXT: .LBB0_1: # %entry
; RV32-PIC-NEXT: # Label of block must be emitted
; RV32-PIC-NEXT: auipc a0, %got_pcrel_hi(external_var)
; RV32-PIC-NEXT: lw a0, %pcrel_lo(.LBB0_1)(a0)
; RV32-PIC-NEXT: ret
;
; RV64-STATIC-LABEL: f1:
; RV64-STATIC: # %bb.0: # %entry
; RV64-STATIC-NEXT: lui a0, %hi(external_var)
; RV64-STATIC-NEXT: addi a0, a0, %lo(external_var)
; RV64-STATIC-NEXT: ret
;
; RV64-PIC-LABEL: f1:
; RV64-PIC: # %bb.0: # %entry
; RV64-PIC-NEXT: .LBB0_1: # %entry
; RV64-PIC-NEXT: # Label of block must be emitted
; RV64-PIC-NEXT: auipc a0, %got_pcrel_hi(external_var)
; RV64-PIC-NEXT: ld a0, %pcrel_lo(.LBB0_1)(a0)
; RV64-PIC-NEXT: ret
entry:
ret i32* @external_var
}
; internal address
define i32* @f2() nounwind {
; RV32-STATIC-LABEL: f2:
; RV32-STATIC: # %bb.0: # %entry
; RV32-STATIC-NEXT: lui a0, %hi(internal_var)
; RV32-STATIC-NEXT: addi a0, a0, %lo(internal_var)
; RV32-STATIC-NEXT: ret
;
; RV32-PIC-LABEL: f2:
; RV32-PIC: # %bb.0: # %entry
; RV32-PIC-NEXT: .LBB1_1: # %entry
; RV32-PIC-NEXT: # Label of block must be emitted
; RV32-PIC-NEXT: auipc a0, %pcrel_hi(internal_var)
; RV32-PIC-NEXT: addi a0, a0, %pcrel_lo(.LBB1_1)
; RV32-PIC-NEXT: ret
;
; RV64-STATIC-LABEL: f2:
; RV64-STATIC: # %bb.0: # %entry
; RV64-STATIC-NEXT: lui a0, %hi(internal_var)
; RV64-STATIC-NEXT: addi a0, a0, %lo(internal_var)
; RV64-STATIC-NEXT: ret
;
; RV64-PIC-LABEL: f2:
; RV64-PIC: # %bb.0: # %entry
; RV64-PIC-NEXT: .LBB1_1: # %entry
; RV64-PIC-NEXT: # Label of block must be emitted
; RV64-PIC-NEXT: auipc a0, %pcrel_hi(internal_var)
; RV64-PIC-NEXT: addi a0, a0, %pcrel_lo(.LBB1_1)
; RV64-PIC-NEXT: ret
entry:
ret i32* @internal_var
}