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Author SHA1 Message Date
Krzysztof Parzyszek 2373f8fcf3 [Hexagon] Recognize more sign-extensions as inputs to 32x32-bit multiply 
llvm-svn: 326263
 2018-02-27 22:44:41 +00:00
Jonas Paulsson 77cdf3881c [Hexagon] Return true in enableMultipleCopyHints(). 
Enable multiple COPY hints to eliminate more COPYs during register allocation.

Note that this is something all targets should do, see
https://reviews.llvm.org/D38128.

Review: Krzysztof Parzyszek
llvm-svn: 325697
 2018-02-21 16:37:45 +00:00
Krzysztof Parzyszek ef58017b35 [Hexagon] Improve code generation for 32x32-bit multiplication 
For multiplications of 64-bit values (giving 64-bit result), detect
cases where the arguments are sign-extended 32-bit values, on a per-
operand basis. This will allow few patterns to match a wider variety
of combinations in which extensions can occur.

llvm-svn: 304223
 2017-05-30 17:47:51 +00:00