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8149421: Vectorized Post Loops

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Add vectorised post loop for counted loops with vectors.

Reviewed-by: kvn
This commit is contained in:
Michael Berg 2016-02-12 16:12:15 -08:00
parent 9d5f03332e
commit 3ade110066
10 changed files with 213 additions and 50 deletions
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10
hotspot/src/cpu/x86/vm/assembler_x86.hpp
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@ -2044,11 +2044,11 @@ private:
class InstructionAttr {
public:
InstructionAttr(
int vector_len,
bool rex_vex_w,
bool legacy_mode,
bool no_reg_mask,
bool uses_vl)
int vector_len, // The length of vector to be applied in encoding - for both AVX and EVEX
bool rex_vex_w, // Width of data: if 32-bits or less, false, else if 64-bit or specially defined, true
bool legacy_mode, // Details if either this instruction is conditionally encoded to AVX or earlier if true else possibly EVEX
bool no_reg_mask, // when true, k0 is used when EVEX encoding is chosen, else k1 is used under the same condition
bool uses_vl) // This instruction may have legacy constraints based on vector length for EVEX
:
_avx_vector_len(vector_len),
_rex_vex_w(rex_vex_w),