From: Uros Bizjak <ubizjak@gmail.com>
Date: Thu, 28 Mar 2019 19:15:58 +0000 (+0100)
Subject: re PR target/89848 (ICE: in convert_op, at config/i386/i386.c:2099 with -O2 -msse2... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=198c27e98311d1d3561f154e75a9df23bff8bacf;p=gcc.git

re PR target/89848 (ICE: in convert_op, at config/i386/i386.c:2099 with -O2 -msse2 -mtune=pentium3m)

	PR target/89848
	* config/i386/i386.c (dimode_scalar_chain::make_vector_copies):
	Also process XEXP (src, 0) of a shift insn.

testsuite/ChangeLog:

	PR target/89848
	* gcc.target/i386/pr89848.c: New test.

From-SVN: r270003
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 741639daa12..2ce421515af 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2019-03-28  Uroš Bizjak  <ubizjak@gmail.com>
+
+	PR target/89848
+	* config/i386/i386.c (dimode_scalar_chain::make_vector_copies):
+	Also process XEXP (src, 0) of a shift insn.
+
 2019-03-28  David Malcolm  <dmalcolm@redhat.com>
 
 	PR middle-end/89725
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index c695fcdc32f..6926085fdd2 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -1901,7 +1901,10 @@ dimode_scalar_chain::make_vector_copies (unsigned regno)
 		 || GET_CODE (src) == LSHIFTRT)
 		&& !CONST_INT_P (XEXP (src, 1))
 		&& reg_or_subregno (XEXP (src, 1)) == regno)
-	      XEXP (src, 1) = vreg;
+	      {
+		XEXP (src, 0) = replace_with_subreg (XEXP (src, 0), reg, reg);
+		XEXP (src, 1) = vreg;
+	      }
 	  }
 	else
 	  replace_with_subreg_in_insn (insn, reg, vreg);
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 0210cd72935..cf9ed5cda8f 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2019-03-28  Uroš Bizjak  <ubizjak@gmail.com>
+
+	PR target/89848
+	* gcc.target/i386/pr89848.c: New test.
+
 2019-03-28  Marek Polacek  <polacek@redhat.com>
 
 	PR c++/89836 - bool constant expression and explicit conversions.
diff --git a/gcc/testsuite/gcc.target/i386/pr89848.c b/gcc/testsuite/gcc.target/i386/pr89848.c
new file mode 100644
index 00000000000..eb67d0dd1e8
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr89848.c
@@ -0,0 +1,11 @@
+/* PR target/89848 */
+/* { dg-do compile { target ia32 } } */
+/* { dg-options "-O2 -msse2 -mtune=pentium3m" } */
+
+long long
+foo (long long x)
+{
+  x >>= 3;
+  x <<= x;
+  return x;
+}