From: Qing Zhao <qing.zhao@oracle.com>
Date: Wed, 11 Oct 2017 19:43:54 +0000 (+0000)
Subject: re PR target/81422 ([aarch64] internal compiler error: in update_equiv_regs, at ira... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=241dbd9d6844dc7f9c463674bd1221984eec539e;p=gcc.git

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
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c3d95d9ba5b..deda4e554ac 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+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
diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c
index 6b3a7566bc1..ec055876a74 100644
--- a/gcc/config/aarch64/aarch64.c
+++ b/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;
       }
 
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 740454058d3..71647a87b7a 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+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
diff --git a/gcc/testsuite/gcc.target/aarch64/pr81422.C b/gcc/testsuite/gcc.target/aarch64/pr81422.C
new file mode 100644
index 00000000000..5bcc948996e
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/pr81422.C
@@ -0,0 +1,15 @@
+/* { 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});
+}
+