Commit 03836095 authored by Yury Delendik's avatar Yury Delendik
Browse files

Bug 1694191 - Improve codegen for extractLaneIntXXX. r=lth 

Use movq for extractLaneInt64x2 and lane=0.

Differential Revision: https://phabricator.services.mozilla.com/D123992
parent 5449000e

js/src/jit/x64/MacroAssembler-x64-inl.h

+5 −1
Original line number Diff line number Diff line
@@ -899,8 +899,12 @@ void MacroAssembler::anyTrueSimd128(FloatRegister src, Register dest) { 


void MacroAssembler::extractLaneInt64x2(uint32_t lane, FloatRegister src,

                                        Register64 dest) {

  if (lane == 0) {

    vmovq(src, dest.reg);

  } else {

    vpextrq(lane, src, dest.reg);

  }

}



// Replace lane value

js/src/jit/x86/MacroAssembler-x86-inl.h

+5 −1
Original line number Diff line number Diff line
@@ -1137,7 +1137,11 @@ void MacroAssembler::anyTrueSimd128(FloatRegister src, Register dest) { 


void MacroAssembler::extractLaneInt64x2(uint32_t lane, FloatRegister src,

                                        Register64 dest) {

  if (lane == 0) {

    vmovd(src, dest.low);

  } else {

    vpextrd(2 * lane, src, dest.low);

  }

  vpextrd(2 * lane + 1, src, dest.high);

}