10 Commits

Author SHA1 Message Date
Craig Topper
50b1d4303d [DAGCombiner] Teach DAG combiner that A-(B-C) can be folded to A+(C-B)
This can be useful since addition is commutable, and subtraction is not.

This matches a transform that is also done by InstCombine.

llvm-svn: 338181
2018-07-28 00:27:25 +00:00
Francis Visoiu Mistrih
25528d6de7 [CodeGen] Unify MBB reference format in both MIR and debug output
As part of the unification of the debug format and the MIR format, print
MBB references as '%bb.5'.

The MIR printer prints the IR name of a MBB only for block definitions.

* find . \( -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#" << ([a-zA-Z0-9_]+)->getNumber\(\)/" << printMBBReference(*\1)/g'
* find . \( -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#" << ([a-zA-Z0-9_]+)\.getNumber\(\)/" << printMBBReference(\1)/g'
* find . \( -name "*.txt" -o -name "*.s" -o -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#([0-9]+)/%bb.\1/g'
* grep -nr 'BB#' and fix

Differential Revision: https://reviews.llvm.org/D40422

llvm-svn: 319665
2017-12-04 17:18:51 +00:00
Sanjay Patel
5e7b7b7503 [x86] regenerate checks with update_llc_test_checks.py
The dream of a unified check-line auto-generator for all phases of compilation is dead.
The llc script has already diverged to be better at its goal, so having 2 scripts that
do almost the same thing is just causing confusion.

We can rip out the llc ability in update_test_checks.py next and rename it, so it will
be clear that we have one script for llc check auto-generation and another for opt.

llvm-svn: 305206
2017-06-12 17:31:36 +00:00
Sanjay Patel
97c2c108fd [x86] avoid printing unnecessary sign bits of hex immediates in asm comments (PR20347)
It would be better to check the valid/expected size of the immediate operand, but this is
generally better than what we print right now.

Differential Revision: http://reviews.llvm.org/D20385

llvm-svn: 271114
2016-05-28 14:58:37 +00:00
Sanjay Patel
22c541438d auto-generate checks
llvm-svn: 269134
2016-05-10 22:33:26 +00:00
Roman Divacky
8d72f4a06f Merge and filecheckize.
llvm-svn: 193778
2013-10-31 17:50:45 +00:00
Dan Gohman
40503396da Eliminate more uses of llvm-as and llvm-dis.
llvm-svn: 81290
2009-09-08 23:54:48 +00:00
Tanya Lattner
3cdf542f5a Remove llvm-upgrade and update tests.
llvm-svn: 47432
2008-02-21 07:42:26 +00:00
Reid Spencer
1c75ef2ce2 For PR1319: Upgrade to new test harness.
llvm-svn: 36091
2007-04-15 22:20:47 +00:00
Reid Spencer
83b3d82672 Regression is gone, don't try to find it on clean target.
llvm-svn: 33296
2007-01-17 07:59:14 +00:00