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Ulrich Weigand 3f58e45931 Allow matching extend-from-memory with strict FP nodes

This implements a small enhancement to https://reviews.llvm.org/D55506

Specifically, while we were able to match strict FP nodes for
floating-point extend operations with a register as source, this
did not work for operations with memory as source.

That is because from regular operations, this is represented as
a combined "extload" node (which is a variant of a load SD node);
but there is no equivalent using a strict FP operation.

However, it turns out that even in the absence of an extload
node, we can still just match the operations explicitly, e.g.
   (strict_fpextend (f32 (load node:$ptr))

This patch implements that method to match the LDEB/LXEB/LXDB
SystemZ instructions even when the extend uses a strict-FP node.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@364450 91177308-0d34-0410-b5e6-96231b3b80d8

2019-06-26 17:19:12 +00:00

GlobalISel

[GlobalISel] Add a G_FNEARBYINT opcode

2019-04-25 16:36:03 +00:00

CodeGenCWrappers.h

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

GenericOpcodes.td

[GlobalISel] Add a G_BRJT opcode.

2019-06-14 17:55:48 +00:00

Target.td

Re-commit r363744: [tblgen][disasm] Allow multiple encodings to disassemble to the same instruction