19 Commits

Author SHA1 Message Date
Kristof Beyls
e6b876f4e5 Fix constant folding through bitcasts by no longer relying on undefined behaviour (converting NaN values between float and double).
SelectionDAG::getConstantFP(double Val, EVT VT, bool isTarget);
should not be used when Val is not a simple constant (as the comment in
SelectionDAG.h indicates). This patch avoids using this function
when folding an unknown constant through a bitcast, where it cannot be
guaranteed that Val will be a simple constant.

llvm-svn: 163703
2012-09-12 11:25:02 +00:00
Jakob Stoklund Olesen
7d33c5739f Don't add CFG edges for redundant conditional branches.
IR that hasn't been through SimplifyCFG can look like this:

  br i1 %b, label %r, label %r

Make sure we don't create duplicate Machine CFG edges in this case.

Fix the machine code verifier to accept conditional branches with a
single CFG edge.

llvm-svn: 162230
2012-08-20 21:39:52 +00:00
Jim Grosbach
581da64241 Simplify printing of ARM shifted immediates.
Print shifted immediate values directly rather than as a payload+shifter
value pair. This makes for more readable output assembly code, simplifies
the instruction printer, and is consistent with how Thumb immediates are
 displayed.

llvm-svn: 134902
2011-07-11 16:48:36 +00:00
Nick Lewycky
90e6a4e5d5 Needs a triple.
llvm-svn: 133634
2011-06-22 19:42:14 +00:00
Nick Lewycky
6208a2fd66 Emit trailing padding on constant vectors when TargetData says that the vector
is larger than the sum of the elements (including per-element padding).

llvm-svn: 133631
2011-06-22 18:55:03 +00:00
Johnny Chen
293875ef55 Fix test-llvm failures.
llvm-svn: 128906
2011-04-05 18:41:40 +00:00
Cameron Zwarich
338d362200 Roll r127459 back in:
Optimize trivial branches in CodeGenPrepare, which often get created from the
lowering of objectsize intrinsics. Unfortunately, a number of tests were relying
on llc not optimizing trivial branches, so I had to add an option to allow them
to continue to test what they originally tested.

This fixes <rdar://problem/8785296> and <rdar://problem/9112893>.

llvm-svn: 127498
2011-03-11 21:52:04 +00:00
Daniel Dunbar
94ccb27b43 Revert r127459, "Optimize trivial branches in CodeGenPrepare, which often get
created from the", it broke some GCC test suite tests.

llvm-svn: 127477
2011-03-11 19:30:30 +00:00
Cameron Zwarich
cc27b3acc4 Optimize trivial branches in CodeGenPrepare, which often get created from the
lowering of objectsize intrinsics. Unfortunately, a number of tests were relying
on llc not optimizing trivial branches, so I had to add an option to allow them
to continue to test what they originally tested.

This fixes <rdar://problem/8785296> and <rdar://problem/9112893>.

llvm-svn: 127459
2011-03-11 04:54:27 +00:00
Jim Grosbach
4663dc72e2 tidy up
llvm-svn: 117185
2010-10-22 23:46:04 +00:00
Jim Grosbach
c18a460adc tweak test to check instructions rather than relying on the comment string
llvm-svn: 114199
2010-09-17 20:17:41 +00:00
Bob Wilson
04580c8307 Fix some more failures by converting to FileCheck.
llvm-svn: 85207
2009-10-27 05:50:28 +00:00
Dan Gohman
c8054d90fb Eliminate more uses of llvm-as and llvm-dis.
llvm-svn: 81293
2009-09-09 00:09:15 +00:00
Evan Cheng
a774a99245 Do not emit comments unless -asm-verbose.
llvm-svn: 67580
2009-03-24 00:17:40 +00:00
Tanya Lattner
f697c03883 Remove llvm-upgrade.
llvm-svn: 47238
2008-02-17 20:02:20 +00:00
Dan Gohman
f9dd170e36 Convert tests using "| wc -l | grep ..." to use the count script.
llvm-svn: 41097
2007-08-15 13:36:28 +00:00
Reid Spencer
6e87ec4351 For PR1319:
Remove && from the end of the lines to prevent tests from throwing run
lines into the background. Also, clean up places where the same command
is run multiple times by using a temporary file.

llvm-svn: 36142
2007-04-16 17:36:08 +00:00
Evan Cheng
a5007faaa6 ARM test cases contributed by Apple.
llvm-svn: 33354
2007-01-19 09:20:23 +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