================
@@ -863,6 +874,35 @@ static void relaxCall36(Ctx &ctx, const InputSection &sec,
size_t i,
}
}
+// Relax code sequence.
+// From:
+// lu12i.w $rd, %le_hi20_r(sym)
+// add.w/d $rd, $rd, $tp, %le_add_r(sym)
+// addi/ld/st.w/d $rd, $rd, %le_lo12_r(sym)
+// To:
+// addi/ld/st.w/d $rd, $tp, %le_lo12_r(sym)
+static void relaxTlsLe(Ctx &ctx, const InputSection &sec, size_t i,
+ uint64_t loc, Relocation &r, uint32_t &remove) {
+ uint64_t val = r.sym->getVA(ctx, r.addend);
+ // Check if the val exceeds the range of addi/ld/st.
+ if (!isInt<12>(val))
+ return;
+ uint32_t currInsn = read32le(sec.content().data() + r.offset);
+ switch (r.type) {
+ case R_LARCH_TLS_LE_HI20_R:
+ case R_LARCH_TLS_LE_ADD_R:
+ sec.relaxAux->relocTypes[i] = R_LARCH_RELAX;
+ remove = 4;
+ break;
+ case R_LARCH_TLS_LE_LO12_R:
+ currInsn =
+ insn(extractBits(currInsn, 31, 22) << 22, getD5(currInsn), R_TP, 0);
+ sec.relaxAux->writes.push_back(currInsn);
----------------
xen0n wrote:
It's probably better to add a `setJ` helper (near the `setJ20` helper maybe)
and use it instead, so that the expression becomes shorter and no need to
change the `currInsn` variable.
https://github.com/llvm/llvm-project/pull/123600
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