llvm-project

Commit Graph

Author	SHA1	Message	Date
Matthias Braun	6b898beb8e	X86: Do not use llc -march in tests. `llc -march` is problematic because it only switches the target architecture, but leaves the operating system unchanged. This occasionally leads to indeterministic tests because the OS from LLVM_DEFAULT_TARGET_TRIPLE is used. However we can simply always use `llc -mtriple` instead. This changes all the tests to do this to avoid people using -march when they copy and paste parts of tests. See also the discussion in https://reviews.llvm.org/D35287 llvm-svn: 309774	2017-08-02 00:28:10 +00:00
Matt Arsenault	d40e1c3fbc	Add triple to test to fix bots llvm-svn: 217612	2014-09-11 17:50:20 +00:00
Matt Arsenault	8239eaab99	Add DAG combine for shl + add of constants. Do (shl (add x, c1), c2) -> (add (shl x, c2), c1 << c2) This is already done for multiplies, but since multiplies by powers of two are turned into shifts, we also need to handle it here. This might want checks for isLegalAddImmediate to avoid transforming an add of a legal immediate with one that isn't. llvm-svn: 217610	2014-09-11 17:34:19 +00:00

Author

SHA1

Message

Date

Matthias Braun

6b898beb8e

X86: Do not use llc -march in tests.

`llc -march` is problematic because it only switches the target
architecture, but leaves the operating system unchanged. This
occasionally leads to indeterministic tests because the OS from
LLVM_DEFAULT_TARGET_TRIPLE is used.

However we can simply always use `llc -mtriple` instead. This changes
all the tests to do this to avoid people using -march when they copy and
paste parts of tests.

See also the discussion in https://reviews.llvm.org/D35287

llvm-svn: 309774

2017-08-02 00:28:10 +00:00

Matt Arsenault

d40e1c3fbc

Add triple to test to fix bots

llvm-svn: 217612

2014-09-11 17:50:20 +00:00

Matt Arsenault

8239eaab99

Add DAG combine for shl + add of constants.

Do
 (shl (add x, c1), c2) -> (add (shl x, c2), c1 << c2)

This is already done for multiplies, but since multiplies
by powers of two are turned into shifts, we also need
to handle it here.

This might want checks for isLegalAddImmediate to avoid
transforming an add of a legal immediate with one that isn't.

llvm-svn: 217610

2014-09-11 17:34:19 +00:00

3 Commits