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3 Commits

Author SHA1 Message Date
Eli Friedman 92d0d13366 [AArch64] Prefer "mov" over "orr" to materialize constants. 
This is generally more readable due to the way the assembler aliases
work.

(This causes a lot of test changes, but it's not really as scary as it
looks at first glance; it's just mechanically changing a bunch of checks
for orr to check for mov instead.)

Differential Revision: https://reviews.llvm.org/D59720

llvm-svn: 356954
 2019-03-25 21:25:28 +00:00
Adhemerval Zanella b3ccc5550d [AArch64] Optimize floating point materialization 
This patch changes isFPImmLegal to return if the value can be enconded
as the immediate operand of a logical instruction besides checking if
for immediate field for fmov.

This optimizes some floating point materization, inclusive values
used on isinf lowering.

Reviewed By: rengolin, efriedma, evandro

Differential Revision: https://reviews.llvm.org/D57044

llvm-svn: 352866
 2019-02-01 12:26:06 +00:00
Matt Arsenault 25e51540e1 DAG: Fix isKnownNeverNaN for basic non-sNaN cases 
fadd/fsub/fmul need to worry about infinities as well
as fdiv.

llvm-svn: 340085
 2018-08-17 21:19:22 +00:00