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7c4f7f326e
llvm/test
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Tim Northover 7c4f7f326e ARM: don't attempt to merge litpools referencing different PC-anchors. 
Given something like:

    ldr r0, .LCPI0_0 (== pc-rel var)
    add r0, pc

    ldr r1, .LCPI0_1 (== pc-rel var)
    add r1, pc

we cannot combine the 2 ldr instructions and litpools because they get added to
a different pc to form the correct address. I think the original logic came
from a time when we fused the LDRpci/PICADD instructions into one
pseudo-instruction so the PC was always immediately at-hand. That's no longer
the case.

Should fix general-dynamic TLS access on Linux, and quite possibly other -fPIC
code that relies on litpools (e.g. v6m and -Oz compilations) though trivial
tweaks of the .ll test didn't provoke anything.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@268662 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-05 18:38:53 +00:00
..
Analysis [PM] Port Branch Probability Analysis pass to the new pass manager. 2016-05-05 02:59:57 +00:00
Assembler
Bindings
Bitcode [ThinLTO] Use valueid instead of bitcode offsets in combined index file 2016-04-27 13:28:35 +00:00
BugPoint
CodeGen ARM: don't attempt to merge litpools referencing different PC-anchors. 2016-05-05 18:38:53 +00:00
DebugInfo Reland "Use ScopedPrinter in llvm-pdbdump" 2016-05-04 16:09:04 +00:00
Examples
ExecutionEngine [powerpc] mark JIT tests as UNSUPPORTED on powerpc64 big endian 2016-04-26 03:59:19 +00:00
Feature
FileCheck
Instrumentation Revert "[asan] add option to set shadow mapping offset" 2016-05-05 01:27:04 +00:00
Integer
JitListener
LibDriver
Linker
LTO LTO: Don't bother trying to mangle unnamed globals, as they can't be preserved with MustPreserveSymbols. 2016-04-27 23:48:11 +00:00
MC [Hexagon] Add aliases for vector loads/stores with no explicit offset 2016-05-05 18:38:35 +00:00
Object Clean up the specific error message for a malformed Mach-O files with bad segment 2016-05-05 17:43:35 +00:00
Other Add opt-bisect support to additional passes that can be skipped 2016-05-03 22:32:30 +00:00
SymbolRewriter
TableGen
ThinLTO/X86 Revert "[ThinLTO] Emit individual index files for distributed backends" 2016-05-05 18:31:00 +00:00
tools Revert "[ThinLTO] Emit individual index files for distributed backends" 2016-05-05 18:31:00 +00:00
Transforms [ValueTracking] Improve isImpliedCondition for matching LHS and Imm RHSs. 2016-05-05 15:39:18 +00:00
Unit
Verifier
YAMLParser
.clang-format
CMakeLists.txt
lit.cfg Add llvm-pdbdump to the tool substitutions list in lit. NFC. 2016-05-02 16:51:26 +00:00
lit.site.cfg.in
TestRunner.sh