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src/hotspot/cpu/x86/x86_64.ad
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@@ -8173,10 +8173,20 @@
ins_encode(REX_reg_mem(dst, src),
OpcSE(imm), reg_mem(dst, src), Con8or32(imm));
ins_pipe(ialu_reg_mem_alu0);
%}
+instruct mulAddS2I_rReg(rRegI dst, rRegI src1, rRegI src2, rRegI src3, rFlagsReg cr)
+%{
+ match(Set dst (MulAddS2I (Binary dst src1) (Binary src2 src3)));
+ effect(KILL cr, KILL src2);
+
+ expand %{ mulI_rReg(dst, src1, cr);
+ mulI_rReg(src2, src3, cr);
+ addI_rReg(dst, src2, cr); %}
+%}
+
instruct mulL_rReg(rRegL dst, rRegL src, rFlagsReg cr)
%{
match(Set dst (MulL dst src));
effect(KILL cr);
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