JIT ARM64-SVE: Implement IF_SVE_FD_3A, IF_SVE_FD_3B, IF_SVE_FD_3C

[amanasifkhalid]

Part of #94549.

cstool output:

mul   z0.h, z1.h, z1.h[1]
mul   z2.h, z3.h, z3.h[3]
mul   z4.h, z5.h, z5.h[5]
mul   z6.h, z7.h, z7.h[7]
mul   z8.s, z9.s, z1.s[0]
mul   z10.s, z11.s, z3.s[1]
mul   z12.s, z13.s, z5.s[2]
mul   z14.s, z15.s, z7.s[3]
mul   z16.d, z17.d, z0.d[0]
mul   z18.d, z19.d, z5.d[1]
mul   z20.d, z21.d, z10.d[0]
mul   z22.d, z23.d, z15.d[1]

JitDisasm output:

mul     z0.h, z1.h, z1.h[1]
mul     z2.h, z3.h, z3.h[3]
mul     z4.h, z5.h, z5.h[5]
mul     z6.h, z7.h, z7.h[7]
mul     z8.s, z9.s, z1.s[0]
mul     z10.s, z11.s, z3.s[1]
mul     z12.s, z13.s, z5.s[2]
mul     z14.s, z15.s, z7.s[3]
mul     z16.d, z17.d, z0.d[0]
mul     z18.d, z19.d, z5.d[1]
mul     z20.d, z21.d, z10.d[0]
mul     z22.d, z23.d, z15.d[1]

cc @dotnet/arm64-contrib.

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Issue Details

---

Part of #94549.

cstool output:

mul   z0.h, z1.h, z1.h[1]
mul   z2.h, z3.h, z3.h[3]
mul   z4.h, z5.h, z5.h[5]
mul   z6.h, z7.h, z7.h[7]
mul   z8.s, z9.s, z1.s[0]
mul   z10.s, z11.s, z3.s[1]
mul   z12.s, z13.s, z5.s[2]
mul   z14.s, z15.s, z7.s[3]
mul   z16.d, z17.d, z0.d[0]
mul   z18.d, z19.d, z5.d[1]
mul   z20.d, z21.d, z10.d[0]
mul   z22.d, z23.d, z15.d[1]

JitDisasm output:

mul     z0.h, z1.h, z1.h[1]
mul     z2.h, z3.h, z3.h[3]
mul     z4.h, z5.h, z5.h[5]
mul     z6.h, z7.h, z7.h[7]
mul     z8.s, z9.s, z1.s[0]
mul     z10.s, z11.s, z3.s[1]
mul     z12.s, z13.s, z5.s[2]
mul     z14.s, z15.s, z7.s[3]
mul     z16.d, z17.d, z0.d[0]
mul     z18.d, z19.d, z5.d[1]
mul     z20.d, z21.d, z10.d[0]
mul     z22.d, z23.d, z15.d[1]

cc @dotnet/arm64-contrib.

Author:	amanasifkhalid
Assignees:	amanasifkhalid
Labels:	area-CodeGen-coreclr, arch-arm64-sve
Milestone:	-

[ryujit-bot]

Diff results for #97934

Throughput diffs

Throughput diffs for linux/arm64 ran on windows/x64

MinOpts (-0.01% to +0.00%)

Collection	PDIFF
libraries.pmi.linux.arm64.checked.mch	-0.01%

Details here

---

[ryujit-bot]

Diff results for #97934

Throughput diffs

Throughput diffs for linux/arm64 ran on linux/x64

Overall (-0.01% to -0.00%)

Collection	PDIFF
libraries_tests_no_tiered_compilation.run.linux.arm64.Release.mch	-0.01%
libraries_tests.run.linux.arm64.Release.mch	-0.01%
libraries.pmi.linux.arm64.checked.mch	-0.01%
benchmarks.run_tiered.linux.arm64.checked.mch	-0.01%
benchmarks.run_pgo.linux.arm64.checked.mch	-0.01%
benchmarks.run.linux.arm64.checked.mch	-0.01%
realworld.run.linux.arm64.checked.mch	-0.01%
coreclr_tests.run.linux.arm64.checked.mch	-0.01%
libraries.crossgen2.linux.arm64.checked.mch	-0.01%

MinOpts (-0.02% to -0.00%)

Collection	PDIFF
libraries_tests_no_tiered_compilation.run.linux.arm64.Release.mch	-0.01%
libraries_tests.run.linux.arm64.Release.mch	-0.01%
libraries.pmi.linux.arm64.checked.mch	-0.01%
benchmarks.run_tiered.linux.arm64.checked.mch	-0.01%
benchmarks.run_pgo.linux.arm64.checked.mch	-0.01%
benchmarks.run.linux.arm64.checked.mch	-0.01%
realworld.run.linux.arm64.checked.mch	-0.02%
coreclr_tests.run.linux.arm64.checked.mch	-0.01%

FullOpts (-0.01% to -0.00%)

Collection	PDIFF
libraries_tests_no_tiered_compilation.run.linux.arm64.Release.mch	-0.01%
libraries.pmi.linux.arm64.checked.mch	-0.01%
benchmarks.run_tiered.linux.arm64.checked.mch	-0.01%
benchmarks.run_pgo.linux.arm64.checked.mch	-0.01%
benchmarks.run.linux.arm64.checked.mch	-0.01%
realworld.run.linux.arm64.checked.mch	-0.01%
coreclr_tests.run.linux.arm64.checked.mch	-0.01%
libraries.crossgen2.linux.arm64.checked.mch	-0.01%

Details here

---

[kunalspathak]

LGTM