Displaying 6 results from an estimated 6 matches for "zpc".
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2008 May 27
1
[LLVMdev] Float compare-for-equality andselect optimizationopportunity
...:
x = NaN
y = NaN
then the comparison:
(x == y) is false.
Which is what your seeing from your first post and is the standard IEEE
expected behavior.
Why I expected your min/max question to be related, consider the flags of
'comiss, ucomiss, etc.' :
ZPC
unordered 111
greater than 000
less than 001
equal 100
Try the following C program with gcc, first with no options and then with
--ffinite-math-only (or --ffast-math)
-----------
#define STR(X) #X
#define CMP(X) if (X) { printf(STR(X) &qu...
2013 Jun 04
0
LDAP Account Manager 4.2 with Samba 4 support released
...License.
The complete list of licenses can be found in the copyright file.
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2008 May 27
0
[LLVMdev] Float compare-for-equality and select optimizationopportunity
Hi Marc,
I'm a bit confused. Isn't the standard compare (i.e. the one for a language
like C) an ordered one? I tried converting some C code to LLVM C++ API code
with the online demo, and it uses FCMP_OEQ.
Cheers,
Nicolas
From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On
Behalf Of Marc B. Reynolds
Sent: Tuesday, 27 May, 2008 14:07
To: 'LLVM
2008 May 27
1
[LLVMdev] Float compare-for-equality and select optimizationopportunity
Both ZF and PF will be set if unordered, so the code below is IEEE
correct...you want to generate 'fcmp ueq' instead of 'fcmp oqe'
This is the resulting x86 assembly code:
movss xmm0,dword ptr [ecx+4]
ucomiss xmm0,dword ptr [ecx+8]
sete al
setnp dl
test dl,al
mov edx,edi
cmovne edx,ecx
cmovne ecx,esi
cmovne
2008 Aug 09
2
xy plot in version 2.7.1 for Mac (PR#12520)
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Sop...
2009 Jul 23
1
[PATCH server] changes required for fedora rawhide inclusion.
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