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555e731f7d
Similar to X86 D73230 and AArch64 D101872 With this change, we can set dso_local in clang's -fpic -fno-semantic-interposition mode, for default visibility external linkage non-ifunc-non-COMDAT definitions. For such dso_local definitions, variable access/taking the address of a function/calling a function will go through a local alias to avoid GOT/PLT. Reviewed By: jrtc27, luismarques Differential Revision: https://reviews.llvm.org/D101875
289 lines
10 KiB
LLVM
289 lines
10 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=riscv32 -relocation-model=static < %s \
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; RUN: | FileCheck %s --check-prefix=RV32-STATIC
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; RUN: llc -mtriple=riscv32 -relocation-model=pic < %s \
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; RUN: | FileCheck %s --check-prefix=RV32-PIC
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; RUN: llc -mtriple=riscv64 -relocation-model=static < %s \
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; RUN: | FileCheck %s --check-prefix=RV64-STATIC
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; RUN: llc -mtriple=riscv64 -relocation-model=pic < %s \
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; RUN: | FileCheck %s --check-prefix=RV64-PIC
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@preemptable_var = dso_preemptable global i32 42
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define i32* @get_preemptable_var() nounwind {
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; RV32-STATIC-LABEL: get_preemptable_var:
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; RV32-STATIC: # %bb.0:
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; RV32-STATIC-NEXT: lui a0, %hi(preemptable_var)
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; RV32-STATIC-NEXT: addi a0, a0, %lo(preemptable_var)
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; RV32-STATIC-NEXT: ret
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;
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; RV32-PIC-LABEL: get_preemptable_var:
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; RV32-PIC: # %bb.0:
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; RV32-PIC-NEXT: .LBB0_1: # Label of block must be emitted
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; RV32-PIC-NEXT: auipc a0, %got_pcrel_hi(preemptable_var)
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; RV32-PIC-NEXT: lw a0, %pcrel_lo(.LBB0_1)(a0)
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; RV32-PIC-NEXT: ret
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;
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; RV64-STATIC-LABEL: get_preemptable_var:
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; RV64-STATIC: # %bb.0:
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; RV64-STATIC-NEXT: lui a0, %hi(preemptable_var)
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; RV64-STATIC-NEXT: addi a0, a0, %lo(preemptable_var)
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; RV64-STATIC-NEXT: ret
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;
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; RV64-PIC-LABEL: get_preemptable_var:
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; RV64-PIC: # %bb.0:
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; RV64-PIC-NEXT: .LBB0_1: # Label of block must be emitted
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; RV64-PIC-NEXT: auipc a0, %got_pcrel_hi(preemptable_var)
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; RV64-PIC-NEXT: ld a0, %pcrel_lo(.LBB0_1)(a0)
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; RV64-PIC-NEXT: ret
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ret i32* @preemptable_var
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}
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@dsolocal_var = dso_local global i32 42
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define i32* @get_dsolocal_var() nounwind {
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; RV32-STATIC-LABEL: get_dsolocal_var:
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; RV32-STATIC: # %bb.0:
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; RV32-STATIC-NEXT: lui a0, %hi(dsolocal_var)
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; RV32-STATIC-NEXT: addi a0, a0, %lo(dsolocal_var)
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; RV32-STATIC-NEXT: ret
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;
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; RV32-PIC-LABEL: get_dsolocal_var:
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; RV32-PIC: # %bb.0:
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; RV32-PIC-NEXT: .LBB1_1: # Label of block must be emitted
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; RV32-PIC-NEXT: auipc a0, %pcrel_hi(.Ldsolocal_var$local)
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; RV32-PIC-NEXT: addi a0, a0, %pcrel_lo(.LBB1_1)
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; RV32-PIC-NEXT: ret
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;
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; RV64-STATIC-LABEL: get_dsolocal_var:
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; RV64-STATIC: # %bb.0:
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; RV64-STATIC-NEXT: lui a0, %hi(dsolocal_var)
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; RV64-STATIC-NEXT: addi a0, a0, %lo(dsolocal_var)
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; RV64-STATIC-NEXT: ret
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;
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; RV64-PIC-LABEL: get_dsolocal_var:
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; RV64-PIC: # %bb.0:
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; RV64-PIC-NEXT: .LBB1_1: # Label of block must be emitted
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; RV64-PIC-NEXT: auipc a0, %pcrel_hi(.Ldsolocal_var$local)
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; RV64-PIC-NEXT: addi a0, a0, %pcrel_lo(.LBB1_1)
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; RV64-PIC-NEXT: ret
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ret i32* @dsolocal_var
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}
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@weak_dsolocal_var = weak dso_local global i32 42
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define i32* @get_weak_dsolocal_var() nounwind {
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; RV32-STATIC-LABEL: get_weak_dsolocal_var:
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; RV32-STATIC: # %bb.0:
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; RV32-STATIC-NEXT: lui a0, %hi(weak_dsolocal_var)
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; RV32-STATIC-NEXT: addi a0, a0, %lo(weak_dsolocal_var)
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; RV32-STATIC-NEXT: ret
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;
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; RV32-PIC-LABEL: get_weak_dsolocal_var:
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; RV32-PIC: # %bb.0:
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; RV32-PIC-NEXT: .LBB2_1: # Label of block must be emitted
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; RV32-PIC-NEXT: auipc a0, %pcrel_hi(weak_dsolocal_var)
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; RV32-PIC-NEXT: addi a0, a0, %pcrel_lo(.LBB2_1)
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; RV32-PIC-NEXT: ret
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;
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; RV64-STATIC-LABEL: get_weak_dsolocal_var:
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; RV64-STATIC: # %bb.0:
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; RV64-STATIC-NEXT: lui a0, %hi(weak_dsolocal_var)
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; RV64-STATIC-NEXT: addi a0, a0, %lo(weak_dsolocal_var)
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; RV64-STATIC-NEXT: ret
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;
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; RV64-PIC-LABEL: get_weak_dsolocal_var:
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; RV64-PIC: # %bb.0:
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; RV64-PIC-NEXT: .LBB2_1: # Label of block must be emitted
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; RV64-PIC-NEXT: auipc a0, %pcrel_hi(weak_dsolocal_var)
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; RV64-PIC-NEXT: addi a0, a0, %pcrel_lo(.LBB2_1)
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; RV64-PIC-NEXT: ret
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ret i32* @weak_dsolocal_var
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}
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@hidden_var = hidden global i32 42
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define i32* @get_hidden_var() nounwind {
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; RV32-STATIC-LABEL: get_hidden_var:
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; RV32-STATIC: # %bb.0:
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; RV32-STATIC-NEXT: lui a0, %hi(hidden_var)
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; RV32-STATIC-NEXT: addi a0, a0, %lo(hidden_var)
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; RV32-STATIC-NEXT: ret
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;
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; RV32-PIC-LABEL: get_hidden_var:
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; RV32-PIC: # %bb.0:
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; RV32-PIC-NEXT: .LBB3_1: # Label of block must be emitted
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; RV32-PIC-NEXT: auipc a0, %pcrel_hi(hidden_var)
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; RV32-PIC-NEXT: addi a0, a0, %pcrel_lo(.LBB3_1)
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; RV32-PIC-NEXT: ret
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;
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; RV64-STATIC-LABEL: get_hidden_var:
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; RV64-STATIC: # %bb.0:
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; RV64-STATIC-NEXT: lui a0, %hi(hidden_var)
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; RV64-STATIC-NEXT: addi a0, a0, %lo(hidden_var)
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; RV64-STATIC-NEXT: ret
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;
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; RV64-PIC-LABEL: get_hidden_var:
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; RV64-PIC: # %bb.0:
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; RV64-PIC-NEXT: .LBB3_1: # Label of block must be emitted
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; RV64-PIC-NEXT: auipc a0, %pcrel_hi(hidden_var)
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; RV64-PIC-NEXT: addi a0, a0, %pcrel_lo(.LBB3_1)
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; RV64-PIC-NEXT: ret
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ret i32* @hidden_var
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}
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@protected_var = protected global i32 42
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define i32* @get_protected_var() nounwind {
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; RV32-STATIC-LABEL: get_protected_var:
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; RV32-STATIC: # %bb.0:
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; RV32-STATIC-NEXT: lui a0, %hi(protected_var)
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; RV32-STATIC-NEXT: addi a0, a0, %lo(protected_var)
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; RV32-STATIC-NEXT: ret
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;
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; RV32-PIC-LABEL: get_protected_var:
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; RV32-PIC: # %bb.0:
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; RV32-PIC-NEXT: .LBB4_1: # Label of block must be emitted
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; RV32-PIC-NEXT: auipc a0, %pcrel_hi(protected_var)
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; RV32-PIC-NEXT: addi a0, a0, %pcrel_lo(.LBB4_1)
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; RV32-PIC-NEXT: ret
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;
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; RV64-STATIC-LABEL: get_protected_var:
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; RV64-STATIC: # %bb.0:
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; RV64-STATIC-NEXT: lui a0, %hi(protected_var)
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; RV64-STATIC-NEXT: addi a0, a0, %lo(protected_var)
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; RV64-STATIC-NEXT: ret
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;
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; RV64-PIC-LABEL: get_protected_var:
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; RV64-PIC: # %bb.0:
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; RV64-PIC-NEXT: .LBB4_1: # Label of block must be emitted
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; RV64-PIC-NEXT: auipc a0, %pcrel_hi(protected_var)
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; RV64-PIC-NEXT: addi a0, a0, %pcrel_lo(.LBB4_1)
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; RV64-PIC-NEXT: ret
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ret i32* @protected_var
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}
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define dso_preemptable void()* @preemptable_func() nounwind {
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; RV32-STATIC-LABEL: preemptable_func:
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; RV32-STATIC: # %bb.0:
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; RV32-STATIC-NEXT: lui a0, %hi(preemptable_func)
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; RV32-STATIC-NEXT: addi a0, a0, %lo(preemptable_func)
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; RV32-STATIC-NEXT: ret
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;
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; RV32-PIC-LABEL: preemptable_func:
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; RV32-PIC: # %bb.0:
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; RV32-PIC-NEXT: .LBB5_1: # Label of block must be emitted
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; RV32-PIC-NEXT: auipc a0, %got_pcrel_hi(preemptable_func)
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; RV32-PIC-NEXT: lw a0, %pcrel_lo(.LBB5_1)(a0)
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; RV32-PIC-NEXT: ret
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;
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; RV64-STATIC-LABEL: preemptable_func:
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; RV64-STATIC: # %bb.0:
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; RV64-STATIC-NEXT: lui a0, %hi(preemptable_func)
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; RV64-STATIC-NEXT: addi a0, a0, %lo(preemptable_func)
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; RV64-STATIC-NEXT: ret
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;
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; RV64-PIC-LABEL: preemptable_func:
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; RV64-PIC: # %bb.0:
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; RV64-PIC-NEXT: .LBB5_1: # Label of block must be emitted
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; RV64-PIC-NEXT: auipc a0, %got_pcrel_hi(preemptable_func)
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; RV64-PIC-NEXT: ld a0, %pcrel_lo(.LBB5_1)(a0)
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; RV64-PIC-NEXT: ret
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ret void()* bitcast(void()*()* @preemptable_func to void()*)
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}
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define dso_local void()* @dsolocal_func() nounwind {
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; RV32-STATIC-LABEL: dsolocal_func:
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; RV32-STATIC: # %bb.0:
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; RV32-STATIC-NEXT: lui a0, %hi(dsolocal_func)
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; RV32-STATIC-NEXT: addi a0, a0, %lo(dsolocal_func)
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; RV32-STATIC-NEXT: ret
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;
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; RV32-PIC-LABEL: dsolocal_func:
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; RV32-PIC: # %bb.0:
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; RV32-PIC-NEXT: .LBB6_1: # Label of block must be emitted
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; RV32-PIC-NEXT: auipc a0, %pcrel_hi(.Ldsolocal_func$local)
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; RV32-PIC-NEXT: addi a0, a0, %pcrel_lo(.LBB6_1)
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; RV32-PIC-NEXT: ret
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;
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; RV64-STATIC-LABEL: dsolocal_func:
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; RV64-STATIC: # %bb.0:
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; RV64-STATIC-NEXT: lui a0, %hi(dsolocal_func)
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; RV64-STATIC-NEXT: addi a0, a0, %lo(dsolocal_func)
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; RV64-STATIC-NEXT: ret
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;
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; RV64-PIC-LABEL: dsolocal_func:
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; RV64-PIC: # %bb.0:
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; RV64-PIC-NEXT: .LBB6_1: # Label of block must be emitted
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; RV64-PIC-NEXT: auipc a0, %pcrel_hi(.Ldsolocal_func$local)
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; RV64-PIC-NEXT: addi a0, a0, %pcrel_lo(.LBB6_1)
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; RV64-PIC-NEXT: ret
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ret void()* bitcast(void()*()* @dsolocal_func to void()*)
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}
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define weak dso_local void()* @weak_dsolocal_func() nounwind {
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; RV32-STATIC-LABEL: weak_dsolocal_func:
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; RV32-STATIC: # %bb.0:
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; RV32-STATIC-NEXT: lui a0, %hi(weak_dsolocal_func)
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; RV32-STATIC-NEXT: addi a0, a0, %lo(weak_dsolocal_func)
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; RV32-STATIC-NEXT: ret
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;
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; RV32-PIC-LABEL: weak_dsolocal_func:
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; RV32-PIC: # %bb.0:
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; RV32-PIC-NEXT: .LBB7_1: # Label of block must be emitted
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; RV32-PIC-NEXT: auipc a0, %pcrel_hi(weak_dsolocal_func)
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; RV32-PIC-NEXT: addi a0, a0, %pcrel_lo(.LBB7_1)
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; RV32-PIC-NEXT: ret
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;
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; RV64-STATIC-LABEL: weak_dsolocal_func:
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; RV64-STATIC: # %bb.0:
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; RV64-STATIC-NEXT: lui a0, %hi(weak_dsolocal_func)
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; RV64-STATIC-NEXT: addi a0, a0, %lo(weak_dsolocal_func)
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; RV64-STATIC-NEXT: ret
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;
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; RV64-PIC-LABEL: weak_dsolocal_func:
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; RV64-PIC: # %bb.0:
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; RV64-PIC-NEXT: .LBB7_1: # Label of block must be emitted
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; RV64-PIC-NEXT: auipc a0, %pcrel_hi(weak_dsolocal_func)
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; RV64-PIC-NEXT: addi a0, a0, %pcrel_lo(.LBB7_1)
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; RV64-PIC-NEXT: ret
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ret void()* bitcast(void()*()* @weak_dsolocal_func to void()*)
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}
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;; call .Ldsolocal_func$local either resolves to a constant at assembly time
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;; or produces a relocation referencing a non-preemptible local symbol.
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define dso_local void @call_dsolocal_func() nounwind {
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; RV32-STATIC-LABEL: call_dsolocal_func:
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; RV32-STATIC: # %bb.0:
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; RV32-STATIC-NEXT: addi sp, sp, -16
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; RV32-STATIC-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
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; RV32-STATIC-NEXT: call dsolocal_func
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; RV32-STATIC-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
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; RV32-STATIC-NEXT: addi sp, sp, 16
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; RV32-STATIC-NEXT: ret
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;
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; RV32-PIC-LABEL: call_dsolocal_func:
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; RV32-PIC: # %bb.0:
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; RV32-PIC-NEXT: addi sp, sp, -16
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; RV32-PIC-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
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; RV32-PIC-NEXT: call .Ldsolocal_func$local
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; RV32-PIC-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
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; RV32-PIC-NEXT: addi sp, sp, 16
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; RV32-PIC-NEXT: ret
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;
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; RV64-STATIC-LABEL: call_dsolocal_func:
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; RV64-STATIC: # %bb.0:
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; RV64-STATIC-NEXT: addi sp, sp, -16
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; RV64-STATIC-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
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; RV64-STATIC-NEXT: call dsolocal_func
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; RV64-STATIC-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
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; RV64-STATIC-NEXT: addi sp, sp, 16
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; RV64-STATIC-NEXT: ret
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;
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; RV64-PIC-LABEL: call_dsolocal_func:
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; RV64-PIC: # %bb.0:
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; RV64-PIC-NEXT: addi sp, sp, -16
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; RV64-PIC-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
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; RV64-PIC-NEXT: call .Ldsolocal_func$local
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; RV64-PIC-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
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; RV64-PIC-NEXT: addi sp, sp, 16
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; RV64-PIC-NEXT: ret
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call void()* @dsolocal_func()
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ret void
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}
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