Commit Graph

10 Commits

Author SHA1 Message Date
Arthur Eubanks e0c7641de6 [RegionInfo][NewPM] Fix RegionInfo tests to work under NPM
Pin RUN lines with -analyze to legacy PM, add corresponding NPM RUN line if missing.

Reviewed By: asbirlea

Differential Revision: https://reviews.llvm.org/D87658
2020-09-15 11:12:14 -07:00
James Y Knight c0e6b8ac3a IR: Support parsing numeric block ids, and emit them in textual output.
Just as as llvm IR supports explicitly specifying numeric value ids
for instructions, and emits them by default in textual output, now do
the same for blocks.

This is a slightly incompatible change in the textual IR format.

Previously, llvm would parse numeric labels as string names. E.g.
  define void @f() {
    br label %"55"
  55:
    ret void
  }
defined a label *named* "55", even without needing to be quoted, while
the reference required quoting. Now, if you intend a block label which
looks like a value number to be a name, you must quote it in the
definition too (e.g. `"55":`).

Previously, llvm would print nameless blocks only as a comment, and
would omit it if there was no predecessor. This could cause confusion
for readers of the IR, just as unnamed instructions did prior to the
addition of "%5 = " syntax, back in 2008 (PR2480).

Now, it will always print a label for an unnamed block, with the
exception of the entry block. (IMO it may be better to print it for
the entry-block as well. However, that requires updating many more
tests.)

Thus, the following is supported, and is the canonical printing:
  define i32 @f(i32, i32) {
    %3 = add i32 %0, %1
    br label %4

  4:
    ret i32 %3
  }

New test cases covering this behavior are added, and other tests
updated as required.

Differential Revision: https://reviews.llvm.org/D58548

llvm-svn: 356789
2019-03-22 18:27:13 +00:00
Tobias Grosser 670a5d88a3 [tests] Do not emity binary bitcode to stdout in RegionInfo tests
llvm-svn: 309485
2017-07-29 09:58:43 +00:00
Hongbin Zheng bc53977a0d Introduce RegionInfoAnalysis, which compute Region Tree in the new PassManager. NFC
Differential Revision: http://reviews.llvm.org/D17571

llvm-svn: 261904
2016-02-25 17:54:25 +00:00
Hongbin Zheng 921fabf34b Revert "Introduce RegionInfoAnalysis, which compute Region Tree in the new PassManager. NFC"
This reverts commit 8228b4d374edeb4cc0c5fddf6e1ab876918ee126.

llvm-svn: 261889
2016-02-25 16:45:37 +00:00
Hongbin Zheng 2fa386fd6c Introduce RegionInfoAnalysis, which compute Region Tree in the new PassManager. NFC
Differential Revision: http://reviews.llvm.org/D17571

llvm-svn: 261884
2016-02-25 16:33:26 +00:00
Jan Wen Voung 6dc3076080 Revert the test moves from 176733. Use "REQUIRES: asserts" instead.
llvm-svn: 176873
2013-03-12 16:27:52 +00:00
Jan Wen Voung 7857a64909 Disable statistics on Release builds and move tests that depend on -stats.
Summary:
Statistics are still available in Release+Asserts (any +Asserts builds),
and stats can also be turned on with LLVM_ENABLE_STATS.

Move some of the FastISel stats that were moved under DEBUG()
back out of DEBUG(), since stats are disabled across the board now.

Many tests depend on grepping "-stats" output.  Move those into
a orig_dir/Stats/. so that they can be marked as unsupported
when building without statistics.

Differential Revision: http://llvm-reviews.chandlerc.com/D486

llvm-svn: 176733
2013-03-08 22:56:31 +00:00
Chandler Carruth 5da53436d5 Convert the uses of '|&' to use '2>&1 |' instead, which works on old
versions of Bash. In addition, I can back out the change to the lit
built-in shell test runner to support this.

This should fix the majority of fallout on Darwin, but I suspect there
will be a few straggling issues.

llvm-svn: 159544
2012-07-02 18:37:59 +00:00
Tobias Grosser 336734aca6 Add new RegionInfo pass.
The RegionInfo pass detects single entry single exit regions in a function,
where a region is defined as any subgraph that is connected to the remaining
graph at only two spots.
Furthermore an hierarchical region tree is built.
Use it by calling "opt -regions analyze" or "opt -view-regions".

llvm-svn: 109089
2010-07-22 07:46:31 +00:00