llvm-6502/test/CodeGen
Alexey Bataev a018099669 [SDAG] Optimize unordered comparison in soft-float mode (patch by Anton Nadolskiy)
Current implementation handles unordered comparison poorly in soft-float mode. 
Consider (a ULE b) which is a <= b. It is lowered to (ledf2(a, b) <= 0 || unorddf2(a, b) != 0) (in general). We can do better job by lowering it to (__gtdf2(a, b) <= 0). 
Such replacement is true for other CMP's (ult, ugt, uge). In general, we just call same function as for ordered case but negate comparison against zero.
Differential Revision: http://reviews.llvm.org/D10804


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242280 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-15 08:39:35 +00:00
..
AArch64 [SDAG] Optimize unordered comparison in soft-float mode (patch by Anton Nadolskiy) 2015-07-15 08:39:35 +00:00
AMDGPU AMDGPU: Avoid using 64-bit shift for i64 (shl x, 32) 2015-07-14 18:20:33 +00:00
ARM ARM: add at least one real test for r242123. 2015-07-14 17:23:55 +00:00
BPF
CPP
Generic
Hexagon [Hexagon] Generate instructions for operations on predicate registers 2015-07-14 19:30:21 +00:00
Inputs
Mips [SDAG] Optimize unordered comparison in soft-float mode (patch by Anton Nadolskiy) 2015-07-15 08:39:35 +00:00
MIR MIR Serialization: Serialize the machine basic block live in registers. 2015-07-14 21:24:41 +00:00
MSP430
NVPTX Actually support volatile memcpys in NVPTX lowering 2015-07-10 15:40:33 +00:00
PowerPC [PowerPC] Use the MachineCombiner to reassociate fadd/fmul 2015-07-15 08:23:05 +00:00
SPARC
SystemZ
Thumb
Thumb2 [SDAG] Optimize unordered comparison in soft-float mode (patch by Anton Nadolskiy) 2015-07-15 08:39:35 +00:00
WebAssembly
WinEH [WinEH] Strip the \01 character from the __CxxFrameHandler3 thunk name 2015-07-13 17:55:14 +00:00
X86 [SDAG] Optimize unordered comparison in soft-float mode (patch by Anton Nadolskiy) 2015-07-15 08:39:35 +00:00
XCore