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Author SHA1 Message Date
Eric Christopher cee313d288 Revert "Temporarily Revert "Add basic loop fusion pass."" 
The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552
 2019-04-17 04:52:47 +00:00
Eric Christopher a863435128 Temporarily Revert "Add basic loop fusion pass." 
As it's causing some bot failures (and per request from kbarton).

This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda.

llvm-svn: 358546
 2019-04-17 02:12:23 +00:00
Shiva Chen 2c864551df [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 
In order to set breakpoints on labels and list source code around
labels, we need collect debug information for labels, i.e., label
name, the function label belong, line number in the file, and the
address label located. In order to keep these information in LLVM
IR and to allow backend to generate debug information correctly.
We create a new kind of metadata for labels, DILabel. The format
of DILabel is

!DILabel(scope: !1, name: "foo", file: !2, line: 3)

We hope to keep debug information as much as possible even the
code is optimized. So, we create a new kind of intrinsic for label
metadata to avoid the metadata is eliminated with basic block.
The intrinsic will keep existing if we keep it from optimized out.
The format of the intrinsic is

llvm.dbg.label(metadata !1)

It has only one argument, that is the DILabel metadata. The
intrinsic will follow the label immediately. Backend could get the
label metadata through the intrinsic's parameter.

We also create DIBuilder API for labels to be used by Frontend.
Frontend could use createLabel() to allocate DILabel objects, and use
insertLabel() to insert llvm.dbg.label intrinsic in LLVM IR.

Differential Revision: https://reviews.llvm.org/D45024

Patch by Hsiangkai Wang.

llvm-svn: 331841
 2018-05-09 02:40:45 +00:00
Adrian Prantl defc99a94e Cleanup tests to not share a DISubprogram between multiple Functions. 
rdar://problem/31926379

llvm-svn: 302166
 2017-05-04 16:24:31 +00:00
Xinliang David Li ab8722f80a [PartialInlining] Add more early filtering 
This is a follow up to the previous
inline cost patch for quicker filtering.

llvm-svn: 301959
 2017-05-02 18:43:21 +00:00
Xinliang David Li 6133846be1 [PartialInlining] Hook up inline cost analysis 
Differential Revision: http://reviews.llvm.org/D32666

llvm-svn: 301894
 2017-05-02 02:44:14 +00:00
Xinliang David Li db8d09b6c2 [PartialInine]: add triaging options 
There are more bugs (runtime failures) triggered when partial
inlining is turned on. Add options to help triaging problems.

llvm-svn: 301148
 2017-04-23 23:39:04 +00:00