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arch-gcn3: Implement instruction v_div_fmas_f32

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Instruction v_div_fmas_f32 was unimplemented. The
implementation was added by mimicking v_div_fmas_f64.

Change-Id: I262820a7a66877d140eb99b538715c3cae4d1860
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/29923
Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com>
Reviewed-by: Xianwei Zhang <xianwei.zhang@amd.com>
Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
Tested-by: kokoro <noreply+kokoro@google.com>
This commit is contained in:
Xianwei Zhang
2018-05-24 13:49:43 -04:00
committed by Anthony Gutierrez
parent c1ea14de44
commit fb7796933e
1 changed files with 43 additions and 2 deletions
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45
src/arch/gcn3/insts/instructions.cc
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@@ -28879,8 +28879,49 @@ namespace Gcn3ISA
void
Inst_VOP3__V_DIV_FMAS_F32::execute(GPUDynInstPtr gpuDynInst)
{
panicUnimplemented();
}
Wavefront *wf = gpuDynInst->wavefront();
ConstVecOperandF32 src0(gpuDynInst, extData.SRC0);
ConstVecOperandF32 src1(gpuDynInst, extData.SRC1);
ConstVecOperandF32 src2(gpuDynInst, extData.SRC2);
VecOperandF64 vdst(gpuDynInst, instData.VDST);
src0.readSrc();
src1.readSrc();
src2.readSrc();
if (instData.ABS & 0x1) {
src0.absModifier();
}
if (instData.ABS & 0x2) {
src1.absModifier();
}
if (instData.ABS & 0x4) {
src2.absModifier();
}
if (extData.NEG & 0x1) {
src0.negModifier();
}
if (extData.NEG & 0x2) {
src1.negModifier();
}
if (extData.NEG & 0x4) {
src2.negModifier();
}
for (int lane = 0; lane < NumVecElemPerVecReg; ++lane) {
if (wf->execMask(lane)) {
vdst[lane] = std::fma(src0[lane], src1[lane], src2[lane]);
}
}
//vdst.write();
} // execute
// --- Inst_VOP3__V_DIV_FMAS_F64 class methods ---
Inst_VOP3__V_DIV_FMAS_F64::Inst_VOP3__V_DIV_FMAS_F64(InFmt_VOP3 *iFmt)
: Inst_VOP3(iFmt, "v_div_fmas_f64", false)