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3 Commits

Author SHA1 Message Date
Petar Jovanovic aa97890d66 [MIPS GlobalISel] Legalize i64 add 
Custom legalize s64 G_ADD for MIPS32.

Patch by Petar Avramovic.

Differential Revision: https://reviews.llvm.org/D52652

llvm-svn: 344007
 2018-10-08 23:59:37 +00:00
Petar Jovanovic 1fa5051bad [MIPS GlobalISel] Legalize i8 and i16 add 
Legalize G_ADD for types smaller than i32.
LegalizationArtifactCombiner replaces extend instructions with appropriate
bitwise instructions.

Patch by Petar Avramovic.

Differential Revision: https://reviews.llvm.org/D51213

llvm-svn: 340697
 2018-08-26 07:25:33 +00:00
Petar Jovanovic 366857a23a [MIPS GlobalISel] Select add i32, i32 
Add the minimal support necessary to lower a function that returns the
sum of two i32 values.
Support argument/return lowering of i32 values through registers only.
Add tablegen for regbankselect and instructionselect.

Patch by Petar Avramovic.

Differential Revision: https://reviews.llvm.org/D44304

llvm-svn: 329819
 2018-04-11 15:12:32 +00:00