re PR target/81422 ([aarch64] internal compiler error: in update_equiv_regs, at ira.c:3425)

/gcc
2017-10-11  Qing Zhao  <qing.zhao@oracle.com>

	PR target/81422
	* config/aarch64/aarch64.c (aarch64_load_symref_appropriately):
	Check whether the dest is REG before adding REG_EQUIV note.

/gcc/testsuite
2017-10-11  Qing Zhao  <qing.zhao@oracle.com>

	PR target/81422
      	* gcc.target/aarch64/pr81422.C: New test.

From-SVN: r253657

gcc/ChangeLog

+2017-10-11  Qing Zhao  <qing.zhao@oracle.com>
+
+	PR target/81422
+	* config/aarch64/aarch64.c (aarch64_load_symref_appropriately):
+	Check whether the dest is REG before adding REG_EQUIV note.
+
 2017-10-11  Vladimir Makarov  <vmakarov@redhat.com>
 
 	PR sanitizer/82353

gcc/config/aarch64/aarch64.c

@@ -1490,7 +1490,8 @@ aarch64_load_symref_appropriately (rtx dest, rtx imm,
 	  tp = gen_lowpart (mode, tp);
 
 	emit_insn (gen_rtx_SET (dest, gen_rtx_PLUS (mode, tp, x0)));
-	set_unique_reg_note (get_last_insn (), REG_EQUIV, imm);
+	if (REG_P (dest))
+	  set_unique_reg_note (get_last_insn (), REG_EQUIV, imm);
 	return;
       }
 
@@ -1524,7 +1525,8 @@ aarch64_load_symref_appropriately (rtx dest, rtx imm,
 	  }
 
 	emit_insn (gen_rtx_SET (dest, gen_rtx_PLUS (mode, tp, tmp_reg)));
-	set_unique_reg_note (get_last_insn (), REG_EQUIV, imm);
+	if (REG_P (dest))
+	  set_unique_reg_note (get_last_insn (), REG_EQUIV, imm);
 	return;
       }
 
@@ -1565,7 +1567,8 @@ aarch64_load_symref_appropriately (rtx dest, rtx imm,
 	    gcc_unreachable ();
 	  }
 
-	set_unique_reg_note (get_last_insn (), REG_EQUIV, imm);
+	if (REG_P (dest))
+	  set_unique_reg_note (get_last_insn (), REG_EQUIV, imm);
 	return;
       }
 
@@ -1594,7 +1597,8 @@ aarch64_load_symref_appropriately (rtx dest, rtx imm,
 	    emit_insn (gen_tlsie_tiny_sidi (dest, imm, tp));
 	  }
 
-	set_unique_reg_note (get_last_insn (), REG_EQUIV, imm);
+	if (REG_P (dest))
+	  set_unique_reg_note (get_last_insn (), REG_EQUIV, imm);
 	return;
       }
 

gcc/testsuite/ChangeLog

+2017-10-11  Qing Zhao  <qing.zhao@oracle.com>
+
+	PR target/81422
+      	* gcc.target/aarch64/pr81422.C: New test.
+
 2017-10-11  Vladimir Makarov  <vmakarov@redhat.com>
 
 	PR sanitizer/82353

gcc/testsuite/gcc.target/aarch64/pr81422.C

+/* { dg-do compile } */
+/* { dg-options "-O0" } */
+
+struct DArray
+{
+    __SIZE_TYPE__ length;
+    int* ptr;
+};
+
+void foo35(DArray)
+{
+    static __thread int x[5];
+    foo35({5, (int*)&x});
+}
+