Brad Smith c30c291887 [SPARC] Lower BR_CC to BPr on 64-bit target whenever possible ...

On 64-bit target, when doing i64 BR_CC where one of the comparison operands is a
constant zero, try to fold the compare and BPcc into a BPr instruction.

For all integers, EQ and NE comparison are available, additionally for signed
integers, GT, GE, LT, and LE is also available.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D142461

2023-04-26 18:56:00 -04:00

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