forked from OSchip/llvm-project
bceaaa9643
This patch implements PR31013 by introducing a
DIGlobalVariableExpression that holds a pair of DIGlobalVariable and
DIExpression.
Currently, DIGlobalVariables holds a DIExpression. This is not the
best way to model this:
(1) The DIGlobalVariable should describe the source level variable,
not how to get to its location.
(2) It makes it unsafe/hard to update the expressions when we call
replaceExpression on the DIGLobalVariable.
(3) It makes it impossible to represent a global variable that is in
more than one location (e.g., a variable with multiple
DW_OP_LLVM_fragment-s). We also moved away from attaching the
DIExpression to DILocalVariable for the same reasons.
This reapplies r289902 with additional testcase upgrades and a change
to the Bitcode record for DIGlobalVariable, that makes upgrading the
old format unambiguous also for variables without DIExpressions.
<rdar://problem/29250149>
https://llvm.org/bugs/show_bug.cgi?id=31013
Differential Revision: https://reviews.llvm.org/D26769
llvm-svn: 290153
|
||
|---|---|---|
| .. | ||
| PR16736.ll | ||
| PR26163.ll | ||
| big-endian-bitfield.ll | ||
| big-endian-dump.ll | ||
| bitfield.ll | ||
| cfi-eof-prologue.ll | ||
| constant-dbgloc.ll | ||
| float-args.ll | ||
| header.ll | ||
| line.test | ||
| lit.local.cfg | ||
| little-endian-dump.ll | ||
| lowerbdgdeclare_vla.ll | ||
| multiple-constant-uses-drops-dbgloc.ll | ||
| processes-relocations.ll | ||
| prologue_end.ll | ||
| s-super-register.ll | ||
| selectiondag-deadcode.ll | ||
| single-constant-use-preserves-dbgloc.ll | ||
| split-complex.ll | ||
| sroa-complex.ll | ||
| tls.ll | ||