| 0c5b18edd1308975804ccf29a02a130a7b6f7fa7 |
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06-Feb-2016 |
Mark Mendell <mark.p.mendell@intel.com> |
Support CMOV for x86 Select
If possible, generate CMOV to implement HSelect. Tricky cases are a
long or FP condition (no single CC generated), FP inputs (no FP CMOV)
and when the condition is a boolean or not emitted at the use site.
In these cases, keep using the existing HSelect code.
Change-Id: I4ff1e152b8ef126fbbabeb3316e9e2b6a6b74aeb
Signed-off-by: Mark Mendell <mark.p.mendell@intel.com>
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| 7c0b44f180f1b8cf82c568091d250071d1130954 |
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01-Feb-2016 |
Mark Mendell <mark.p.mendell@intel.com> |
Support CMOV for x86_64 Select
If possible, generate CMOV to implement HSelect. Tricky cases are
an FP condition (no single CC generated), FP inputs (no FP CMOV)
and when the condition is a boolean or not emitted at the use site.
In these cases, keep using the existing HSelect code.
Added Load32BitValue for int and FP and used that to remove code
duplication. Added minimal checker test for int/long CMOV generation.
Change-Id: Id71e515f0afa5a30f53c5de3a5244de1ea429aae
Signed-off-by: Mark Mendell <mark.p.mendell@intel.com>
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| 74eb1b264691c4eb399d0858015a7fc13c476ac6 |
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14-Dec-2015 |
David Brazdil <dbrazdil@google.com> |
ART: Implement HSelect
This patch adds a new HIR instruction to Optimizing. HSelect returns
one of two inputs based on the outcome of a condition.
This is only initial implementation which:
- defines the new instruction,
- repurposes BooleanSimplifier to emit it,
- extends InstructionSimplifier to statically resolve it,
- updates existing code and tests accordingly.
Code generators currently emit fallback if/then/else code and will be
updated in follow-up CLs to use platform-specific conditional moves
when possible.
Change-Id: Ib61b17146487ebe6b55350c2b589f0b971dcaaee
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