Commit Graph

8 Commits

Author SHA1 Message Date
Tom Stellard f340787d79 R600/SI: Fix illegal VGPR->SGPR copy inside of loop
llvm-svn: 195026
2013-11-18 18:50:20 +00:00
Tom Stellard 13de545693 R600/SI: Fix another case of illegal VGPR->SGPR copy
llvm-svn: 195025
2013-11-18 18:50:15 +00:00
Tom Stellard 519ae39c45 R600/SI: Add VReg_96 register class to SIRegisterInfo::hasVGPRs()
This fixes a crash with GNOME settings manager.

llvm-svn: 194836
2013-11-15 18:26:45 +00:00
Matt Arsenault 72b31eee0b R600/SI: Change formatting of printed registers.
Print the range of registers used with a single letter prefix.
This better matches what the shader compiler produces and
is overall less obnoxious than concatenating all of the
subregister names together.

Instead of SGPR0, it will print s0. Instead of SGPR0_SGPR1,
it will print s[0:1] and so on.

There doesn't appear to be a straightforward way
to get the actual register info in the InstPrinter,
so this parses the generated name to print with the
new syntax.

The required test changes are pretty nasty, and register
matching regexes are now worse. Since there isn't a way to
add to a variable in FileCheck, some of the tests now don't
check the exact number of registers used, but I don't think that
will be a real problem.

llvm-svn: 194443
2013-11-12 02:35:51 +00:00
Tom Stellard 70f13dba15 R600/SI: Use -verify-machineinstrs for most tests
We can't enable the verifier for tests with SI_IF and SI_ELSE, because
these instructions are always followed by a COPY which copies their
result to the next basic block.  This violates the machine verifier's
rule that non-terminators can not folow terminators.

Reviewed-by: Vincent Lejeune<vljn at ovi.com>
llvm-svn: 192366
2013-10-10 17:11:46 +00:00
Manman Ren adf4cc171e TBAA: update tbaa format from scalar format to struct-path aware format.
llvm-svn: 191690
2013-09-30 18:17:55 +00:00
Tom Stellard 15e4811455 R600/SI: Fix another case of illegal VGPR to SGPR copy
This fixes a crash in Unigine Tropics.

https://bugs.freedesktop.org/show_bug.cgi?id=68389

llvm-svn: 189057
2013-08-22 20:21:02 +00:00
Tom Stellard 2f7cdda57e R600/SI: Use VSrc_* register classes as the default classes for types
Since the VSrc_* register classes contain both VGPRs and SGPRs, copies
that used be emitted by isel like this:

SGPR = COPY VGPR

Will now be emitted like this:

VSrC = COPY VGPR

This patch also adds a pass that tries to identify and fix situations where
a VGPR to SGPR copy may occur.  Hopefully, these changes will make it
impossible for the compiler to generate illegal VGPR to SGPR copies.

llvm-svn: 187831
2013-08-06 23:08:28 +00:00