Add missing fabs(fpext) optimzation that worked with the call,
and also fixes it creating a second fpext when there were multiple
uses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292172 91177308-0d34-0410-b5e6-96231b3b80d8
fabs(x * x) is not generally safe to assume x is positive if x is a NaN.
This is also less general than it could be, so this will be replaced
with a transformation on the intrinsic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291359 91177308-0d34-0410-b5e6-96231b3b80d8
Lowering to llvm.cttz() will result in constant folding anyway
if the argument to ffs is a constant. Pointed out by Eli for
fls() in D14590.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289888 91177308-0d34-0410-b5e6-96231b3b80d8
After r289755, the AssumptionCache is no longer needed. Variables affected by
assumptions are now found by using the new operand-bundle-based scheme. This
new scheme is more computationally efficient, and also we need much less
code...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289756 91177308-0d34-0410-b5e6-96231b3b80d8
Teach SimplifyLibcalls that in can treat functions annotated with
apcs, aapcs or aapcs_vfp like normal C functions if they only take
and return integer or pointer values, and the target is not iOS.
Differential Revision: https://reviews.llvm.org/D24453
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@281322 91177308-0d34-0410-b5e6-96231b3b80d8
Hal pointed out that the semantic of our intrinsic and the libc
call are slightly different. Add a comment while I'm here to
explain why we can't emit an intrinsic. Thanks Hal!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278200 91177308-0d34-0410-b5e6-96231b3b80d8
The destination buffer that sprintf uses is restrict qualified, we do
not need to worry about derived pointers referenced via format
specifiers.
This reverts commit r267580.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@267605 91177308-0d34-0410-b5e6-96231b3b80d8
sprintf doesn't read or copy the terminating null byte from it's string
operands. sprintf will append it's own after processing all of the
format specifiers.
This fixes PR27526.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@267580 91177308-0d34-0410-b5e6-96231b3b80d8
Matt Arsenault
Davide Italiano
Daniel Jasper
Hal Finkel
Stephan Bergmann
Sam Parker
David Majnemer
Sjoerd Meijer
Joerg Sonnenberger
Ahmed Bougacha
Mehdi Amini
David L Kreitzer