src/arm/simulator-arm.cc - Issue 6625084: ARM: Improved double to integer truncation....

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Unified Diff: src/arm/simulator-arm.cc

Issue 6625084: ARM: Improved double to integer truncation.... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/

Patch Set: '' Created 9 years, 9 months ago

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Index: src/arm/simulator-arm.cc

===================================================================

--- src/arm/simulator-arm.cc (revision 7157)

+++ src/arm/simulator-arm.cc (working copy)

@@ -2467,6 +2467,8 @@

// vmov :Rt = Sn

// vcvt: Dd = Sm

// vcvt: Sd = Dm

+// Dd = vabs(Dm)

+// Dd = vneg(Dm)

// Dd = vadd(Dn, Dm)

// Dd = vsub(Dn, Dm)

// Dd = vmul(Dn, Dm)

@@ -2502,6 +2504,11 @@

double dm_value = get_double_from_d_register(vm);

double dd_value = fabs(dm_value);

set_d_register_from_double(vd, dd_value);

+ } else if ((instr->Opc2Value() == 0x1) && (instr->Opc3Value() == 0x1)) {

+ // vneg

+ double dm_value = get_double_from_d_register(vm);

+ double dd_value = -dm_value;

+ set_d_register_from_double(vd, dd_value);

} else if ((instr->Opc2Value() == 0x7) && (instr->Opc3Value() == 0x3)) {

DecodeVCVTBetweenDoubleAndSingle(instr);

} else if ((instr->Opc2Value() == 0x8) && (instr->Opc3Value() & 0x1)) {

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