llvm-project/llvm/test/MC
Martin Storsjo fd4c158a84 [ARM] Clear the constant pool cache on explicit .ltorg directives
Multiple ldr pseudoinstructions with the same constant value will
reuse the same constant pool entry. However, if the constant pool
is explicitly flushed with a .ltorg directive, we should not try
to reference constants in the previous pool any longer, since they
may be out of range.

This fixes assembling hand-written assembler source which repeatedly
loads the same constant value, across a binary size larger than the
pc-relative fixup range for ldr instructions (4096 bytes). Such
assembler source already uses explicit .ltorg instructions to emit
constant pools with regular intervals. However if we try to reuse
constants emitted in earlier pools, they end up out of range.

This makes the output of the testcase match what binutils gas does
(prior to this patch, it would fail to assemble).

Differential Revision: https://reviews.llvm.org/D32847

llvm-svn: 302416
2017-05-08 10:26:24 +00:00
..
AArch64 [AArch64] armv8-A doesn't have CRC. 2017-05-03 20:33:52 +00:00
AMDGPU [AMDGPU] DPP: add support for GFX9 2017-04-27 15:42:38 +00:00
ARM [ARM] Clear the constant pool cache on explicit .ltorg directives 2017-05-08 10:26:24 +00:00
AVR [AVR] Fix a bug so that we now emit R_AVR_16 fixups with the correct offset 2017-04-30 23:33:52 +00:00
AsmParser [LLVM][inline-asm][Altmacor] Altmacro string delimiter '<..>' 2017-05-04 10:37:00 +00:00
COFF MC/COFF: Do not emit forward associative section referenceds. 2017-02-17 17:32:54 +00:00
Disassembler [AArch64] armv8-A doesn't have CRC. 2017-05-03 20:33:52 +00:00
ELF Add llvm::object::getELFSectionTypeName(). 2017-05-02 14:04:52 +00:00
Hexagon [Hexagon] Change iconst to emit 27bit relocation 2017-05-02 18:19:11 +00:00
Lanai [lanai] Add more tests for assembly of conditional ALU ops 2016-07-11 17:58:16 +00:00
MachO MCMacho: Allow __thread_ptr section after dwarf sections 2017-02-01 01:31:36 +00:00
Markup
Mips [mips] Emit R_MICROMIPS_TLS_GOTTPREL relocation for %gottprel in case of microMIPS 2017-04-30 04:27:23 +00:00
PowerPC [PowerPC][Altivec] Add mfvrd and mffprd extended mnemonic 2017-03-15 16:04:53 +00:00
Sparc Don't pass a Reloc::Model to MC. 2016-05-18 11:58:50 +00:00
SystemZ [SystemZ] Support remaining atomic instructions 2016-12-02 18:24:16 +00:00
WebAssembly [WebAssembly] Add size of section header to data relocation offsets. 2017-04-28 21:22:38 +00:00
X86 [X86][LWP] Add llvm support for LWP instructions (reapplied). 2017-05-03 15:51:39 +00:00