Jeff Law writes:
Ian Lance Taylor wrote:
Adam Nemet ane...@caviumnetworks.com writes:
I am trying to understand the checkin by Jeff Law from about 11 years ago:
r19204 | law | 1998-04-14 01:04:21 -0700 (Tue, 14 Apr 1998) | 4 lines
* combine.c
Ian Lance Taylor writes:
truncate has a machine independent meaning.
Yes, I guess with your definition below it does. It's interesting though that
Jim had said the opposite in the excerpts posted by Jeff:
And a later message from Jim:
Truncate converts a value from a larger to a smaller
Adam Nemet ane...@caviumnetworks.com writes:
Ian Lance Taylor writes:
truncate has a machine independent meaning.
Yes, I guess with your definition below it does. It's interesting though that
Jim had said the opposite in the excerpts posted by Jeff:
And a later message from Jim:
Adam Nemet wrote:
Jeff Law writes:
Ian Lance Taylor wrote:
Adam Nemet ane...@caviumnetworks.com writes:
I am trying to understand the checkin by Jeff Law from about 11 years ago:
r19204 | law | 1998-04-14 01:04:21 -0700 (Tue, 14 Apr 1998) | 4 lines
*
Ian Lance Taylor writes:
I'm not entirely sure, but I don't think Jim said the opposite. He said
that the way truncate works is machine dependent. I said that the
output of truncate is machine independent. Since truncate is only
defined for fixed-point modes, I think both statements are
Adam Nemet ane...@caviumnetworks.com writes:
Ian Lance Taylor writes:
I'm not entirely sure, but I don't think Jim said the opposite. He said
that the way truncate works is machine dependent. I said that the
output of truncate is machine independent. Since truncate is only
defined for
I am trying to understand the checkin by Jeff Law from about 11 years ago:
r19204 | law | 1998-04-14 01:04:21 -0700 (Tue, 14 Apr 1998) | 4 lines
* combine.c (simplify_rtx, case TRUNCATE): Respect value of
TRULY_NOOP_TRUNCATION.
Index: combine.c
Adam Nemet ane...@caviumnetworks.com writes:
I am trying to understand the checkin by Jeff Law from about 11 years ago:
r19204 | law | 1998-04-14 01:04:21 -0700 (Tue, 14 Apr 1998) | 4 lines
* combine.c (simplify_rtx, case TRUNCATE): Respect value of
Ian Lance Taylor writes:
I agree that this patch looks wrong in todays compiler. There should be
no need to call TRULY_NOOP_TRUNCATION if you are in a TRUNCATE anyhow.
Thanks.
Do you think we can assume this for TRUNCATEs in general or only for MIPS-like
TRUNCATEs?
I can't think of why it
Adam Nemet ane...@caviumnetworks.com writes:
Ian Lance Taylor writes:
I agree that this patch looks wrong in todays compiler. There should be
no need to call TRULY_NOOP_TRUNCATION if you are in a TRUNCATE anyhow.
Thanks.
Do you think we can assume this for TRUNCATEs in general or only for
Adam Nemet wrote:
I am trying to understand the checkin by Jeff Law from about 11 years ago:
r19204 | law | 1998-04-14 01:04:21 -0700 (Tue, 14 Apr 1998) | 4 lines
* combine.c (simplify_rtx, case TRUNCATE): Respect value of
TRULY_NOOP_TRUNCATION.
Ian Lance Taylor wrote:
Adam Nemet ane...@caviumnetworks.com writes:
I am trying to understand the checkin by Jeff Law from about 11 years ago:
r19204 | law | 1998-04-14 01:04:21 -0700 (Tue, 14 Apr 1998) | 4 lines
* combine.c (simplify_rtx, case TRUNCATE): Respect
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