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Rafael Espindola 13a79bbfe5 Change how we handle section symbols on ELF. 
On ELF every section can have a corresponding section symbol. When in
an assembly file we have

.quad .text

the '.text' refers to that symbol.

The way we used to handle them is to leave .text an undefined symbol
until the very end when the object writer would map them to the
actual section symbol.

The problem with that is that anything before the end would see an
undefined symbol. This could result in bad diagnostics
(test/MC/AArch64/label-arithmetic-diags-elf.s), or incorrect results
when using the asm streamer (est/MC/Mips/expansion-jal-sym-pic.s).

Fixing this will also allow using the section symbol earlier for
setting sh_link of SHF_METADATA sections.

This patch includes a few hacks to avoid changing our behaviour when
handling conflicts between section symbols and other symbols. I
reported pr31850 to track that.

llvm-svn: 293936
 		2017-02-02 21:26:06 +00:00
..
adrp-relocation.s Update AArch64 ELF relocations to ABI 1.0 2014-11-26 10:49:18 +00:00
alias-addsubimm.s [AArch64] Implement add/adds/sub/subs/cmp/cmn with negative immediate aliases 2015-07-01 15:05:58 +00:00
alias-logicalimm.s [AArch64] Add logical alias instructions to MC AsmParser 2014-07-10 15:12:26 +00:00
arm32-elf-relocs.s AArch64 ILP32 relocations for assembly and ELF 2016-10-24 13:37:13 +00:00
arm64-adr.s
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arm64-advsimd.s add support for -print-imm-hex for AArch64 2016-05-13 18:00:09 +00:00
arm64-aliases.s AArch64: allow MOV (imm) alias to be printed 2016-06-16 01:42:25 +00:00
arm64-arithmetic-encoding.s AArch64: allow MOV (imm) alias to be printed 2016-06-16 01:42:25 +00:00
arm64-arm64-fixup.s
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arm64-basic-a64-instructions.s
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arm64-be-datalayout.s AArch64: remove "arm64_be" support in favour of "aarch64_be". 2014-07-23 12:58:11 +00:00
arm64-bitfield-encoding.s
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arm64-branch-encoding.s
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arm64-condbr-without-dots.s
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arm64-crypto.s
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arm64-diagno-predicate.s
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arm64-diags.s [AArch64] Check the size of the vector before accessing its elements. 2015-10-13 18:55:34 +00:00
arm64-directive_loh.s
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arm64-elf-reloc-condbr.s Update tests to not be as dependent on section numbers. 2015-04-15 15:59:37 +00:00
arm64-elf-relocs.s AArch64 ILP32 relocations for assembly and ELF 2016-10-24 13:37:13 +00:00
arm64-fp-encoding-error.s AArch64: disallow "fmov sD, #-0.0" during assembly. 2015-04-07 22:49:47 +00:00
arm64-fp-encoding.s [AArch64] Add ARMv8.2-A FP16 scalar instructions 2015-11-27 13:04:48 +00:00
arm64-ilp32.s AArch64 ILP32 relocations for assembly and ELF 2016-10-24 13:37:13 +00:00
arm64-large-relocs.s
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arm64-leaf-compact-unwind.s [llvm-readobj] MachO -- correctly dump section field 'Reserved3' 2015-09-01 16:29:02 +00:00
arm64-logical-encoding.s
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arm64-mapping-across-sections.s
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arm64-mapping-within-section.s
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arm64-memory.s
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arm64-nv-cond.s
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arm64-optional-hash.s
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arm64-separator.s
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arm64-simd-ldst.s
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arm64-small-data-fixups.s [tests] Use llvm-readobj instead of macho-dump. 2015-07-28 21:58:08 +00:00
arm64-spsel-sysreg.s AArch64: TableGenerate system instruction operands. 2016-07-05 21:23:04 +00:00
arm64-system-encoding.s AArch64: TableGenerate system instruction operands. 2016-07-05 21:23:04 +00:00
arm64-target-specific-sysreg.s
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arm64-tls-modifiers-darwin.s
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arm64-tls-relocs.s Update AArch64 ELF relocations to ABI 1.0 2014-11-26 10:49:18 +00:00
arm64-v128_lo-diagnostics.s
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arm64-variable-exprs.s
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arm64-vector-lists.s
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arm64-verbose-vector-case.s
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arm64v8.1-diagno-predicate.s [AArch64] Refactor LSE support as feature separate from V8.1a support. 2016-11-30 22:25:24 +00:00
armv8.1a-atomic.s AArch64: fix typo in SMIN far atomics and add tests 2015-06-02 18:37:20 +00:00
armv8.1a-lor.s [AArch64] LORID_EL1 register must be treated as read-only 2015-04-20 16:54:37 +00:00
armv8.1a-pan.s [MC layer][AArch64] llvm-mc accepts 4-bit immediate values for 2015-10-05 13:42:31 +00:00
armv8.1a-rdma.s Defer asm errors to post-statement failure 2016-09-16 18:30:20 +00:00
armv8.1a-vhe.s [AArch64] Add v8.1a "Virtualization Host Extensions" 2015-04-16 15:38:58 +00:00
armv8.2a-at.s [AArch64] Add ARMv8.2-A new AT instruction variants 2015-11-26 15:34:44 +00:00
armv8.2a-mmfr2.s [AArch64] Add ARMv8.2-A ID_A64MMFR2_EL1 register 2015-11-26 15:26:10 +00:00
armv8.2a-persistent-memory.s [AArch64] Add ARMv8.2-A persistent memory instruction 2015-11-26 15:28:47 +00:00
armv8.2a-statistical-profiling.s [AArch64] Add ARMv8.2-A Statistical Profiling Extension 2015-12-01 10:48:51 +00:00
armv8.2a-uao.s [AArch64] Add ARMv8.2-A UAO PSTATE bit 2015-11-26 15:32:30 +00:00
basic-a64-diagnostics.s [MC][AArch64] Cleanup end-of-line parsing in AArch64 AsmParser. 2016-11-08 18:31:04 +00:00
basic-a64-instructions.s AArch64: TableGenerate system instruction operands. 2016-07-05 21:23:04 +00:00
basic-pic.s
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case-insen-reg-names.s [AArch64] AsmParser should be case insensitive about accepting vector register names. 2015-06-08 21:32:16 +00:00
cyclone-crc.s AArch64: remove CRC feature from Cyclone. 2016-02-24 18:10:17 +00:00
darwin-reloc-addsubimm.s [AArch64] Fix encoding for lsl #12 in add/sub immediates 2016-09-19 11:10:18 +00:00
directive-arch-negative.s [AArch64] Refactor LSE support as feature separate from V8.1a support. 2016-11-30 22:25:24 +00:00
directive-arch.s Move the armv8.1-a ras test to a negative with noras test as ras is 2016-09-19 21:55:04 +00:00
directive-cpu.s [AArch64] Refactor LSE support as feature separate from V8.1a support. 2016-11-30 22:25:24 +00:00
dot-req-case-insensitive.s aarch64: support target-specific .req assembler directive 2014-07-02 04:50:23 +00:00
dot-req-diagnostics.s aarch64: support target-specific .req assembler directive 2014-07-02 04:50:23 +00:00
dot-req.s Fix some unnoticed/unwanted behavior change from r222319. 2015-02-04 03:10:03 +00:00
elf-extern.s Update tests to not be as dependent on section numbers. 2015-04-15 15:59:37 +00:00
elf-globaladdress.ll Update tests to not be as dependent on section numbers. 2015-04-15 15:59:37 +00:00
elf-objdump.s
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elf-reloc-addsubimm.s [AArch64] Fix encoding for lsl #12 in add/sub immediates 2016-09-19 11:10:18 +00:00
elf-reloc-ldrlit.s Update tests to not be as dependent on section numbers. 2015-04-15 15:59:37 +00:00
elf-reloc-ldstunsimm.s Update tests to not be as dependent on section numbers. 2015-04-15 15:59:37 +00:00
elf-reloc-movw.s Update tests to not be as dependent on section numbers. 2015-04-15 15:59:37 +00:00
elf-reloc-pcreladdressing.s Update tests to not be as dependent on section numbers. 2015-04-15 15:59:37 +00:00
elf-reloc-tstb.s Update tests to not be as dependent on section numbers. 2015-04-15 15:59:37 +00:00
elf-reloc-uncondbrimm.s Update tests to not be as dependent on section numbers. 2015-04-15 15:59:37 +00:00
elf_osabi_flags.s Restore test coverage for other than ELFOSABI_NONE 2015-09-24 23:01:16 +00:00
error-location-during-layout.s [Assembler] Better error messages for .org directive 2016-12-14 10:43:58 +00:00
error-location-ldr-pseudo.s [ARM,AArch64] Store source location of asm constant pool entries 2015-11-16 16:25:47 +00:00
error-location-post-layout.s [Assembler] Improve error when unable to evaluate expression. 2017-01-19 20:06:32 +00:00
error-location.s [Assembler] Better error messages for .org directive 2016-12-14 10:43:58 +00:00
expr-shr.s [MC] Use LShr for constant evaluation of ">>" on ELF/arm64--darwin. 2015-04-28 01:37:11 +00:00
fixup-out-of-range.s [AArch64] Better errors for out-of-range fixups 2016-04-01 09:14:50 +00:00
fullfp16-diagnostics.s [AArch64] Fix FP16 vector instructions that should only accept low registers 2015-12-09 14:32:11 +00:00
fullfp16-neon-neg.s [AArch64] Add ARMv8.2-A FP16 vector instructions 2015-12-08 12:16:10 +00:00
gicv3-regs-diagnostics.s
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gicv3-regs.s
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ilp32-diagnostics.s AArch64 ILP32 relocations for assembly and ELF 2016-10-24 13:37:13 +00:00
inline-asm-modifiers.s Update AArch64 ELF relocations to ABI 1.0 2014-11-26 10:49:18 +00:00
inst-directive-diagnostic.s [MC][AArch64] Cleanup end-of-line parsing in AArch64 AsmParser. 2016-11-08 18:31:04 +00:00
inst-directive.s Followup to 258750; update this test to use .p2align . 2016-01-26 00:17:24 +00:00
jump-table.s
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label-arithmetic-darwin.s [AArch64] Allow label arithmetic with add/sub/cmp 2016-10-11 09:17:47 +00:00
label-arithmetic-diags-darwin.s [AArch64] Allow label arithmetic with add/sub/cmp 2016-10-11 09:17:47 +00:00
label-arithmetic-diags-elf.s Change how we handle section symbols on ELF. 2017-02-02 21:26:06 +00:00
label-arithmetic-elf.s [AArch64] Allow label arithmetic with add/sub/cmp 2016-10-11 09:17:47 +00:00
ldr-pseudo-diagnostics.s [AArch64] ldr= pseudo-instruction silently ignored if register invalid 2015-11-16 10:25:19 +00:00
ldr-pseudo-obj-errors.s [AArch64] Better errors for out-of-range fixups 2016-04-01 09:14:50 +00:00
ldr-pseudo.s Fix 24560: assembler does not share constant pool for same constants 2016-11-04 19:17:32 +00:00
lit.local.cfg Reduce verbiage of lit.local.cfg files 2014-06-09 22:42:55 +00:00
mapping-across-sections.s
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mapping-within-section.s
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neon-2velem.s [AArch64] Add ARMv8.2-A FP16 vector instructions 2015-12-08 12:16:10 +00:00
neon-3vdiff.s
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neon-aba-abd.s [AArch64] Add ARMv8.2-A FP16 vector instructions 2015-12-08 12:16:10 +00:00
neon-across.s [AArch64] Add ARMv8.2-A FP16 vector instructions 2015-12-08 12:16:10 +00:00
neon-add-pairwise.s [AArch64] Add ARMv8.2-A FP16 vector instructions 2015-12-08 12:16:10 +00:00
neon-add-sub-instructions.s Fix some broken CHECK lines. 2017-01-22 20:28:56 +00:00
neon-bitwise-instructions.s
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neon-compare-instructions.s [AArch64] Add ARMv8.2-A FP16 vector instructions 2015-12-08 12:16:10 +00:00
neon-crypto.s
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neon-diagnostics.s Defer asm errors to post-statement failure 2016-09-16 18:30:20 +00:00
neon-extract.s
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neon-facge-facgt.s [AArch64] Add ARMv8.2-A FP16 vector instructions 2015-12-08 12:16:10 +00:00
neon-frsqrt-frecp.s [AArch64] Add ARMv8.2-A FP16 vector instructions 2015-12-08 12:16:10 +00:00
neon-halving-add-sub.s
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neon-max-min-pairwise.s [AArch64] Add ARMv8.2-A FP16 vector instructions 2015-12-08 12:16:10 +00:00
neon-max-min.s [AArch64] Add ARMv8.2-A FP16 vector instructions 2015-12-08 12:16:10 +00:00
neon-mla-mls-instructions.s [AArch64] Add ARMv8.2-A FP16 vector instructions 2015-12-08 12:16:10 +00:00
neon-mov.s
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neon-mul-div-instructions.s
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neon-perm.s
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neon-rounding-halving-add.s
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neon-rounding-shift.s
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neon-saturating-add-sub.s
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neon-saturating-rounding-shift.s
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neon-saturating-shift.s
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neon-scalar-abs.s [AArch64] Add ARMv8.2-A FP16 vector instructions 2015-12-08 12:16:10 +00:00
neon-scalar-add-sub.s
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neon-scalar-by-elem-mla.s [AArch64] Add ARMv8.2-A FP16 vector instructions 2015-12-08 12:16:10 +00:00
neon-scalar-by-elem-mul.s [AArch64] Add ARMv8.2-A FP16 vector instructions 2015-12-08 12:16:10 +00:00
neon-scalar-by-elem-saturating-mla.s
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neon-scalar-by-elem-saturating-mul.s
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neon-scalar-compare.s
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neon-scalar-cvt.s [AArch64] Add ARMv8.2-A FP16 vector instructions 2015-12-08 12:16:10 +00:00
neon-scalar-dup.s
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neon-scalar-extract-narrow.s
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neon-scalar-fp-compare.s [AArch64] Add ARMv8.2-A FP16 vector instructions 2015-12-08 12:16:10 +00:00
neon-scalar-mul.s [AArch64] Add ARMv8.2-A FP16 vector instructions 2015-12-08 12:16:10 +00:00
neon-scalar-neg.s
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neon-scalar-recip.s [AArch64] Add ARMv8.2-A FP16 vector instructions 2015-12-08 12:16:10 +00:00
neon-scalar-reduce-pairwise.s [AArch64] Add ARMv8.2-A FP16 vector instructions 2015-12-08 12:16:10 +00:00
neon-scalar-rounding-shift.s
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neon-scalar-saturating-add-sub.s
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neon-scalar-saturating-rounding-shift.s
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neon-scalar-saturating-shift.s
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neon-scalar-shift-imm.s
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neon-scalar-shift.s
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neon-shift-left-long.s
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neon-shift.s
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neon-simd-copy.s
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neon-simd-ldst-multi-elem.s
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neon-simd-ldst-one-elem.s
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neon-simd-misc.s [AArch64] Add ARMv8.2-A FP16 vector instructions 2015-12-08 12:16:10 +00:00
neon-simd-post-ldst-multi-elem.s
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neon-simd-shift.s [AArch64] Add ARMv8.2-A FP16 vector instructions 2015-12-08 12:16:10 +00:00
neon-sxtl.s
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neon-tbl.s
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neon-uxtl.s
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noneon-diagnostics.s [AArch64] Improve short-form diags on long-form Match_InvalidOperand. 2015-08-19 17:40:19 +00:00
optional-hash.s Remove redundant -mattr options from llvm-objdump commands. 2016-06-16 15:47:19 +00:00
ras-extension.s RAS extensions are part of ARMv8.2-A. This change enables them by introducing a 2016-06-03 14:03:27 +00:00
shift_extend_op_w_symbol.s Attempt to make the Windows bots green after r290609. 2016-12-27 18:02:27 +00:00
single-slash.s AArch64: allow MOV (imm) alias to be printed 2016-06-16 01:42:25 +00:00
tls-add-shift.s AArch64: Set shift bit of TLSLE HI12 add instruction 2016-09-29 01:05:48 +00:00
tls-relocs.s [AArch64] Fix encoding for lsl #12 in add/sub immediates 2016-09-19 11:10:18 +00:00
trace-regs-diagnostics.s
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trace-regs.s
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