Displaying 4 results from an estimated 4 matches for "setlibcallcallingconv".
2017 Mar 29
3
clang 4.0.0: Invalid code for builtin floating point function with -mfloat-abi=hard -ffast-math (ARM)
On 29 March 2017 at 02:33, Saleem Abdulrasool <compnerd at compnerd.org> wrote:
> sin/cos are libm functions, and so a libcall to those need to honour the
> floating point ABI requests. The calling convention to be followed there
> should match `-mfloat-abi` (that is, -mfloat-abi=hard => AAPCS/VFP,
> -mfloat-abi=soft => AAPCS).
Exactly, but they're not, and that's
2016 Feb 16
0
Intrinsic opt failure
...the IR's
requirements are. That means that even in the case of your backend, the
arguments to the intrinsic must be doubles, not their addresses. You
can convert the intrinsics to function calls, together with the call
frame set up, etc. during instruction selection.
Check setLibcallName, setLibcallCallingConv (and related functions) in
include/llvm/Target/TargetLowering.h. The Libcall enum is defined in
include/llvm/CodeGen/RuntimeLibcalls.h
-Krzysztof
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
hosted by The Linux Foundation
2016 Feb 16
2
Intrinsic opt failure
Hi,
Working on private backend, based on llvm-3.7
Inside lib/Transforms/InstCombine/InstCombineCompares.cpp there is
attempt to optimize fabs:
if (F->getIntrinsicID() == Intrinsic::fabs ||
...
switch (I.getPredicate()) {
...
case FCmpInst::FCMP_OGT:
return new FCmpInst(FCmpInst::FCMP_ONE, CI->getArgOperand(0), RHSC);
But
CI->getArgOperand(0)
2014 Sep 18
2
[LLVMdev] troubles with ISD::FPOWI
...s operator's operand!
------
This is coming out of DAGTypeLegalizer::ExpandIntegerResult().
I've tried adding some code to expand the integer operand (operand 1) via SIGN_EXTEND[_INREG] but keep getting other consistency errors.
Another approach I tried was to set the calling convention:
setLibcallCallingConv(RTLIB::POWI_F32, CallingConv::C);
Which would seem to force the call to convert the i32 --> i64 just like any other call, but that did not work either
Any suggestions (is this a real bug? - when I give other 64-bit targets, they also bomb out (sparcv9, aarch64)
Regards,
Richard Gorton
Cogni...