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ac916443ad
Remove "_NC" suffix and semantics from TLSDESC_LD{64,32}_LO12 and
TLSDESC_ADD_LO12 relocations
Rearrange ordering in AArch64.def to follow relocation encoding
Fix name:
R_AARCH64_P32_LD64_GOT_LO12_NC => R_AARCH64_P32_LD32_GOT_LO12_NC
Add support for several "TLS", "TLSGD", and "TLSLD" relocations for
ILP32
Fix return values from isNonILP32reloc
Add implementations for
R_AARCH64_ADR_PREL_PG_HI21_NC, R_AARCH64_P32_LD32_GOT_LO12_NC,
R_AARCH64_P32_TLSIE_LD32_GOTTPREL_LO12_NC,
R_AARCH64_P32_TLSDESC_LD32_LO12, R_AARCH64_LD64_GOT_LO12_NC,
*TLSLD_LDST128_DTPREL_LO12, *TLSLD_LDST128_DTPREL_LO12_NC,
*TLSLE_LDST128_TPREL_LO12, *TLSLE_LDST128_TPREL_LO12_NC
Modify error messages to give name of equivalent relocation in the
ABI not being used, along with better checking for non-existent
requested relocations.
Added assembler support for "pg_hi21_nc"
Relocation definitions added without implementations:
R_AARCH64_P32_TLSDESC_ADR_PREL21, R_AARCH64_P32_TLSGD_ADR_PREL21,
R_AARCH64_P32_TLSGD_ADD_LO12_NC, R_AARCH64_P32_TLSLD_ADR_PREL21,
R_AARCH64_P32_TLSLD_ADR_PAGE21, R_AARCH64_P32_TLSLD_ADD_LO12_NC,
R_AARCH64_P32_TLSLD_LD_PREL19, R_AARCH64_P32_TLSDESC_LD_PREL19,
R_AARCH64_P32_TLSGD_ADR_PAGE21, R_AARCH64_P32_TLS_DTPREL,
R_AARCH64_P32_TLS_DTPMOD, R_AARCH64_P32_TLS_TPREL,
R_AARCH64_P32_TLSDESC
Fix encoding:
R_AARCH64_P32_TLSDESC_ADR_PAGE21
Reviewers: Peter Smith
Patch by: Joel Jones (jjones@cavium.com)
Differential Revision: https://reviews.llvm.org/D32072
llvm-svn: 301980
170 lines
6.5 KiB
LLVM
170 lines
6.5 KiB
LLVM
; RUN: llc -mtriple=arm64-none-linux-gnu -relocation-model=pic -aarch64-elf-ldtls-generation=1 -verify-machineinstrs < %s | FileCheck %s
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; RUN: llc -mtriple=arm64-none-linux-gnu -relocation-model=pic -aarch64-elf-ldtls-generation=1 -filetype=obj < %s | llvm-objdump -r - | FileCheck --check-prefix=CHECK-RELOC %s
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; RUN: llc -mtriple=arm64-none-linux-gnu -relocation-model=pic -verify-machineinstrs < %s | FileCheck --check-prefix=CHECK-NOLD %s
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; RUN: llc -mtriple=arm64-none-linux-gnu -relocation-model=pic -filetype=obj < %s | llvm-objdump -r - | FileCheck --check-prefix=CHECK-NOLD-RELOC %s
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@general_dynamic_var = external thread_local global i32
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define i32 @test_generaldynamic() {
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; CHECK-LABEL: test_generaldynamic:
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%val = load i32, i32* @general_dynamic_var
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ret i32 %val
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; CHECK: adrp x[[TLSDESC_HI:[0-9]+]], :tlsdesc:general_dynamic_var
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; CHECK-NEXT: ldr [[CALLEE:x[0-9]+]], [x[[TLSDESC_HI]], :tlsdesc_lo12:general_dynamic_var]
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; CHECK-NEXT: add x0, x[[TLSDESC_HI]], :tlsdesc_lo12:general_dynamic_var
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; CHECK-NEXT: .tlsdesccall general_dynamic_var
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; CHECK-NEXT: blr [[CALLEE]]
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; CHECK-NOLD: adrp x[[TLSDESC_HI:[0-9]+]], :tlsdesc:general_dynamic_var
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; CHECK-NOLD-NEXT: ldr [[CALLEE:x[0-9]+]], [x[[TLSDESC_HI]], :tlsdesc_lo12:general_dynamic_var]
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; CHECK-NOLD-NEXT: add x0, x[[TLSDESC_HI]], :tlsdesc_lo12:general_dynamic_var
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; CHECK-NOLD-NEXT: .tlsdesccall general_dynamic_var
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; CHECK-NOLD-NEXT: blr [[CALLEE]]
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; CHECK: mrs x[[TP:[0-9]+]], TPIDR_EL0
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; CHECK: ldr w0, [x[[TP]], x0]
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; CHECK-NOLD: mrs x[[TP:[0-9]+]], TPIDR_EL0
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; CHECK-NOLD: ldr w0, [x[[TP]], x0]
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; CHECK-RELOC: R_AARCH64_TLSDESC_ADR_PAGE21
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; CHECK-RELOC: R_AARCH64_TLSDESC_LD64_LO12
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; CHECK-RELOC: R_AARCH64_TLSDESC_ADD_LO12
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; CHECK-RELOC: R_AARCH64_TLSDESC_CALL
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; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_ADR_PAGE21
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; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_LD64_LO12
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; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_ADD_LO12
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; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_CALL
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}
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define i32* @test_generaldynamic_addr() {
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; CHECK-LABEL: test_generaldynamic_addr:
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ret i32* @general_dynamic_var
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; CHECK: adrp x[[TLSDESC_HI:[0-9]+]], :tlsdesc:general_dynamic_var
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; CHECK-NEXT: ldr [[CALLEE:x[0-9]+]], [x[[TLSDESC_HI]], :tlsdesc_lo12:general_dynamic_var]
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; CHECK-NEXT: add x0, x[[TLSDESC_HI]], :tlsdesc_lo12:general_dynamic_var
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; CHECK-NEXT: .tlsdesccall general_dynamic_var
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; CHECK-NEXT: blr [[CALLEE]]
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; CHECK: mrs [[TP:x[0-9]+]], TPIDR_EL0
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; CHECK: add x0, [[TP]], x0
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; CHECK-RELOC: R_AARCH64_TLSDESC_ADR_PAGE21
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; CHECK-RELOC: R_AARCH64_TLSDESC_LD64_LO12
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; CHECK-RELOC: R_AARCH64_TLSDESC_ADD_LO12
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; CHECK-RELOC: R_AARCH64_TLSDESC_CALL
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; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_ADR_PAGE21
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; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_LD64_LO12
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; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_ADD_LO12
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; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_CALL
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}
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@local_dynamic_var = external thread_local(localdynamic) global i32
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define i32 @test_localdynamic() {
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; CHECK-LABEL: test_localdynamic:
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%val = load i32, i32* @local_dynamic_var
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ret i32 %val
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; CHECK: adrp x[[TLSDESC_HI:[0-9]+]], :tlsdesc:_TLS_MODULE_BASE_
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; CHECK-NEXT: ldr [[CALLEE:x[0-9]+]], [x[[TLSDESC_HI]], :tlsdesc_lo12:_TLS_MODULE_BASE_]
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; CHECK-NEXT: add x0, x[[TLSDESC_HI]], :tlsdesc_lo12:_TLS_MODULE_BASE_
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; CHECK-NEXT: .tlsdesccall _TLS_MODULE_BASE_
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; CHECK-NEXT: blr [[CALLEE]]
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; CHECK-NEXT: add x[[TPOFF:[0-9]+]], x0, :dtprel_hi12:local_dynamic_var
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; CHECK-NEXT: add x[[TPOFF]], x[[TPOFF]], :dtprel_lo12_nc:local_dynamic_var
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; CHECK: mrs x[[TPIDR:[0-9]+]], TPIDR_EL0
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; CHECK: ldr w0, [x[[TPIDR]], x[[TPOFF]]]
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; CHECK-NOLD: adrp x[[TLSDESC_HI:[0-9]+]], :tlsdesc:local_dynamic_var
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; CHECK-NOLD-NEXT: ldr [[CALLEE:x[0-9]+]], [x[[TLSDESC_HI]], :tlsdesc_lo12:local_dynamic_var]
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; CHECK-NOLD-NEXT: add x0, x[[TLSDESC_HI]], :tlsdesc_lo12:local_dynamic_var
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; CHECK-NOLD-NEXT: .tlsdesccall local_dynamic_var
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; CHECK-NOLD-NEXT: blr [[CALLEE]]
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; CHECK-NOLD: mrs x[[TPIDR:[0-9]+]], TPIDR_EL0
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; CHECK-NOLD: ldr w0, [x[[TPIDR]], x0]
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; CHECK-RELOC: R_AARCH64_TLSDESC_ADR_PAGE21
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; CHECK-RELOC: R_AARCH64_TLSDESC_LD64_LO12
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; CHECK-RELOC: R_AARCH64_TLSDESC_ADD_LO12
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; CHECK-RELOC: R_AARCH64_TLSDESC_CALL
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; CHECK-RELOC: R_AARCH64_TLSLD_ADD_DTPREL_HI12
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; CHECK-RELOC: R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC
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; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_ADR_PAGE21
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; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_LD64_LO12
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; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_ADD_LO12
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; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_CALL
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}
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define i32* @test_localdynamic_addr() {
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; CHECK-LABEL: test_localdynamic_addr:
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; CHECK: adrp x[[TLSDESC_HI:[0-9]+]], :tlsdesc:_TLS_MODULE_BASE_
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; CHECK-NEXT: ldr [[CALLEE:x[0-9]+]], [x[[TLSDESC_HI]], :tlsdesc_lo12:_TLS_MODULE_BASE_]
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; CHECK-NEXT: add x0, x[[TLSDESC_HI]], :tlsdesc_lo12:_TLS_MODULE_BASE_
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; CHECK-NEXT: .tlsdesccall _TLS_MODULE_BASE_
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; CHECK-NEXT: blr [[CALLEE]]
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; CHECK-NEXT: add x[[TPOFF:[0-9]+]], x0, :dtprel_hi12:local_dynamic_var
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; CHECK-NEXT: add x[[TPOFF]], x[[TPOFF]], :dtprel_lo12_nc:local_dynamic_var
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; CHECK: mrs x[[TPIDR:[0-9]+]], TPIDR_EL0
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; CHECK: add x0, x[[TPIDR]], x[[TPOFF]]
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; CHECK-NOLD: adrp x[[TLSDESC_HI:[0-9]+]], :tlsdesc:local_dynamic_var
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; CHECK-NOLD-NEXT: ldr [[CALLEE:x[0-9]+]], [x[[TLSDESC_HI]], :tlsdesc_lo12:local_dynamic_var]
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; CHECK-NOLD-NEXT: add x0, x[[TLSDESC_HI]], :tlsdesc_lo12:local_dynamic_var
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; CHECK-NOLD-NEXT: .tlsdesccall local_dynamic_var
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; CHECK-NOLD-NEXT: blr [[CALLEE]]
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; CHECK-NOLD: mrs x[[TPIDR:[0-9]+]], TPIDR_EL0
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; CHECK-NOLD: add x0, x[[TPIDR]], x0
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ret i32* @local_dynamic_var
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; CHECK-RELOC: R_AARCH64_TLSDESC_ADR_PAGE21
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; CHECK-RELOC: R_AARCH64_TLSDESC_LD64_LO12
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; CHECK-RELOC: R_AARCH64_TLSDESC_ADD_LO12
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; CHECK-RELOC: R_AARCH64_TLSDESC_CALL
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; CHECK-RELOC: R_AARCH64_TLSLD_ADD_DTPREL_HI12
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; CHECK-RELOC: R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC
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; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_ADR_PAGE21
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; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_LD64_LO12
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; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_ADD_LO12
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; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_CALL
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}
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; The entire point of the local-dynamic access model is to have a single call to
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; the expensive resolver. Make sure we achieve that goal.
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@local_dynamic_var2 = external thread_local(localdynamic) global i32
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define i32 @test_localdynamic_deduplicate() {
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; CHECK-LABEL: test_localdynamic_deduplicate:
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%val = load i32, i32* @local_dynamic_var
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%val2 = load i32, i32* @local_dynamic_var2
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%sum = add i32 %val, %val2
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ret i32 %sum
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; CHECK: adrp x[[DTPREL_HI:[0-9]+]], :tlsdesc:_TLS_MODULE_BASE_
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; CHECK-NEXT: ldr [[CALLEE:x[0-9]+]], [x[[DTPREL_HI]], :tlsdesc_lo12:_TLS_MODULE_BASE_]
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; CHECK-NEXT: add x0, x[[TLSDESC_HI]], :tlsdesc_lo12:_TLS_MODULE_BASE
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; CHECK-NEXT: .tlsdesccall _TLS_MODULE_BASE_
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; CHECK-NEXT: blr [[CALLEE]]
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; CHECK-NOT: _TLS_MODULE_BASE_
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; CHECK: ret
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}
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