Hi,
gcc/
* config/mips/mips-protos.h (mips_hard_regno_rename_ok): New
prototype.
* config/mips/mips.c (mips_hard_regno_rename_ok): New
function.
(mips_hard_regno_scratch_ok): Likewise.
(TARGET_HARD_REGNO_SCRATCH_OK): Define macro.
* config/mips/mips.h
On Aug 15, 2015, at 9:19 AM, Richard Sandiford rdsandif...@googlemail.com
wrote:
Mike Stump mikest...@comcast.net writes:
On Aug 15, 2015, at 3:32 AM, Richard Sandiford
rdsandif...@googlemail.com wrote:
The port is only buggy if they have define_peephole2s with match_scratches
and those
Robert Suchanek robert.sucha...@imgtec.com writes:
You also need to do the same thing for TARGET_HARD_REGNO_SCRATCH_OK,
to stop peephole2 from using unsaved registers as scratch registers.
I should dig out my patches to clean up this interface. It's just
too brittle to have two macros
On Aug 15, 2015, at 3:32 AM, Richard Sandiford rdsandif...@googlemail.com
wrote:
The port is only buggy if they have define_peephole2s with match_scratches
and those match_scratches require a register that would be saved by
an interrupt function. In other cases defining T_H_R_S_O would have
Mike Stump mikest...@comcast.net writes:
On Aug 15, 2015, at 3:32 AM, Richard Sandiford
rdsandif...@googlemail.com wrote:
The port is only buggy if they have define_peephole2s with match_scratches
and those match_scratches require a register that would be saved by
an interrupt function. In
-Original Message-
From: Robert Suchanek [mailto:robert.sucha...@imgtec.com]
Sent: Friday, August 14, 2015 8:01 AM
To: Mike Stump; Richard Sandiford
Cc: Moore, Catherine; Matthew Fortune; gcc-patches@gcc.gnu.org
Subject: RE: [PATCH][MIPS] Fix register renaming in the interrupt
Hi,
You also need to do the same thing for TARGET_HARD_REGNO_SCRATCH_OK,
to stop peephole2 from using unsaved registers as scratch registers.
I should dig out my patches to clean up this interface. It's just
too brittle to have two macros that say what registers can be used
after
I'd like to give Catherine chance to review this, I notice a couple
of formatting nits in the test case:
Robert Suchanek robert.sucha...@imgtec.com writes:
a/gcc/testsuite/gcc.target/mips/interrupt_handler-bug-1.c
b/gcc/testsuite/gcc.target/mips/interrupt_handler-bug-1.c
new file mode 100644
-Original Message-
From: Matthew Fortune [mailto:matthew.fort...@imgtec.com]
Sent: Thursday, August 13, 2015 7:20 AM
To: Robert Suchanek; Moore, Catherine
Cc: gcc-patches@gcc.gnu.org
Subject: RE: [PATCH][MIPS] Fix register renaming in the interrupt handlers
I'd like to give
On Aug 13, 2015, at 12:54 PM, Richard Sandiford rdsandif...@googlemail.com
wrote:
It was discovered that with the attached test case compiled with -O2
-funroll-loops, the regrename pass renamed one of the registers ($2)
to $8 that was not saved by the prologue.
The attached patch fixes it
Robert Suchanek robert.sucha...@imgtec.com writes:
Hi,
It was discovered that with the attached test case compiled with -O2
-funroll-loops, the regrename pass renamed one of the registers ($2)
to $8 that was not saved by the prologue.
The attached patch fixes it by defining macro
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