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Optimizing HIR contains 'non-materialized' instructions which are
emitted at their use sites rather than their defining sites. This
was not properly handled by the liveness analysis which did not
adjust the use positions of the inputs of such instructions.
Despite the analysis being incorrect, the current use cases never
produce incorrect code.
This patch generalizes the concept of inlined instructions and
updates liveness analysis to set the compute use positions correctly.
Change-Id: Id703c154b20ab861241ae5c715a150385d3ff621
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Each code generator implements a method for generating condition
evaluation and branching to arbitrary labels. This patch refactors
it for better clarity but also to generate fewer jumps when the true
branch is the fallthrough successor.
This is preliminary work for implementing HSelect.
Change-Id: Iaa545a5ecbacb761c5aa241fa69140cf6eb5952f
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Optimize the code generation for 'if' statements to jump to the
'false' block if the next block to be generated is the 'true' block.
Add an X86-64 test for this case.
Note that ARM64 & MIPS64 have not been updated.
Change-Id: Iebb1352feb9d3bd0142d8b0621a2e3069a708ea7
Signed-off-by: Mark Mendell <mark.p.mendell@intel.com>
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Change-Id: Ibf39cbc8ac1d773599d70be2cb1e941674b60f1d
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This is done using the algorithms in Hacker's Delight chapter 10.
Change-Id: I7bacefe10067569769ed31a1f7834f796fb41119
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