Commit Graph

7 Commits

Author SHA1 Message Date
Daniel Sanders cbaca42a03 Re-commit: [mips][fastisel] Handle 0-4 arguments without SelectionDAG.
Summary:
Implements fastLowerArguments() to avoid the need to fall back on
SelectionDAG for 0-4 argument functions that don't do tricky things like
passing double in a pair of i32's.

This allows us to move all except one test to -fast-isel-abort=3. The
remaining one has function prototypes of the form 'i32 (i32, double, double)'
which requires floats to be passed in GPR's.

The previous commit had an uninitialized variable that caused the incoming
argument region to have undefined size. This has been fixed.

Reviewers: sdardis

Subscribers: dsanders, llvm-commits, sdardis

Differential Revision: https://reviews.llvm.org/D22680

llvm-svn: 277136
2016-07-29 12:27:28 +00:00
Daniel Sanders 6e74651658 Revert r276982 and r276984: [mips][fastisel] Handle 0-4 arguments without SelectionDAG
It seems that the stack offset in callabi.ll varies between machines. I'll look
into it.

llvm-svn: 276989
2016-07-28 15:37:42 +00:00
Daniel Sanders e0b529f619 [mips][fastisel] Handle 0-4 arguments without SelectionDAG.
Summary:
Implements fastLowerArguments() to avoid the need to fall back on
SelectionDAG for 0-4 argument functions that don't do tricky things like
passing double in a pair of i32's.

This allows us to move all except one test to -fast-isel-abort=3. The
remaining one has function prototypes of the form 'i32 (i32, double, double)'
which requires floats to be passed in GPR's.

Reviewers: sdardis

Subscribers: dsanders, llvm-commits, sdardis

Differential Revision: https://reviews.llvm.org/D22680

llvm-svn: 276982
2016-07-28 14:55:28 +00:00
Vasileios Kalintiris 2041b1dd0b [mips][FastISel] Remove hidden mips-fast-isel option.
Summary:
This hidden option would disable code generation through FastISel by
default. It was removed from the available options and from the
Fast-ISel tests that required it in order to run the tests.

Reviewers: dsanders

Subscribers: qcolombet, llvm-commits

Differential Revision: http://reviews.llvm.org/D11610

llvm-svn: 243638
2015-07-30 12:39:33 +00:00
Mehdi Amini 945a660cbc Change the fast-isel-abort option from bool to int to enable "levels"
Summary:
Currently fast-isel-abort will only abort for regular instructions,
and just warn for function calls, terminators, function arguments.
There is already fast-isel-abort-args but nothing for calls and
terminators.

This change turns the fast-isel-abort options into an integer option,
so that multiple levels of strictness can be defined.
This will help no being surprised when the "abort" option indeed does
not abort, and enables the possibility to write test that verifies
that no intrinsics are forgotten by fast-isel.

Reviewers: resistor, echristo

Subscribers: jfb, llvm-commits

Differential Revision: http://reviews.llvm.org/D7941

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 230775
2015-02-27 18:32:11 +00:00
Reed Kotler 32be74b178 Add mips32 r1 to the list of supported targets for Mips fast-isel
Summary:
Expand list of supported targets for Mips to include mips32 r1.
Previously it only include r2. More patches are coming where there is 
a difference but in the current patches as pushed upstream, r1 and r2
are equivalent.

Test Plan:
simplestorefp1.ll

add new build bots at mips to test this flavor at both -O0 and -O2

Reviewers: dsanders

Reviewed By: dsanders

Differential Revision: http://reviews.llvm.org/D5306

llvm-svn: 217821
2014-09-15 20:30:25 +00:00
Reed Kotler 67077b3032 Add Simple return instruction to Mips fast-isel
Reviewers: dsanders

Reviewed by: dsanders

Differential Revision: http://reviews.llvm.org/D3430

llvm-svn: 207565
2014-04-29 17:57:50 +00:00