backport: re PR target/80819 (Useless store to the stack in _mm_set_epi64x with...

	Backported from mainline
	2017-11-29  Jakub Jelinek  <jakub@redhat.com>

	PR target/80819
	* config/i386/sse.md (vec_concatv2di): Remove * from (=Yr,0,*rm)
	alternative.

	* gcc.target/i386/pr80819-1.c: New test.
	* gcc.target/i386/pr80819-2.c: New test.

From-SVN: r262040

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d69483ce35cf5c085543393874a2779436b6310b..6c4eb62597a021dd99392beca9d203c5d79760ff 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,6 +1,12 @@
 2018-06-25  Jakub Jelinek  <jakub@redhat.com>
 
        Backported from mainline
+       2017-11-29  Jakub Jelinek  <jakub@redhat.com>
+
+       PR target/80819
+       * config/i386/sse.md (vec_concatv2di): Remove * from (=Yr,0,*rm)
+       alternative.
+
        2017-11-24  Jakub Jelinek  <jakub@redhat.com>
  
        PR sanitizer/83014

diff --git a/gcc/config/i386/sse.md b/gcc/config/i386/sse.md
index 319dbd22276f4ed64d89694e47159b295b6721e3..e5ff0078c69186836d85b57e8f414edfbfdd2651 100644 (file)
--- a/gcc/config/i386/sse.md
+++ b/gcc/config/i386/sse.md
@@ -13616,7 +13616,7 @@
          (match_operand:DI 1 "nonimmediate_operand"
          "  0, 0,x ,r ,xm,?!*Yn,0,x,0,0,x")
          (match_operand:DI 2 "vector_move_operand"
-         "*rm,rm,rm,C ,C ,C ,x,x,x,m,m")))]
+         " rm,rm,rm,C ,C ,C ,x,x,x,m,m")))]
   "TARGET_SSE"
   "@
    pinsrq\t{$1, %2, %0|%0, %2, 1}

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 431ad7c09b6f9291c93c405fe72bb69fc367c5df..4c07baf52b5b7ee5bbef1e842028d31cf1861bb5 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,6 +1,12 @@
 2018-06-25  Jakub Jelinek  <jakub@redhat.com>
 
        Backported from mainline
+       2017-11-29  Jakub Jelinek  <jakub@redhat.com>
+
+       PR target/80819
+       * gcc.target/i386/pr80819-1.c: New test.
+       * gcc.target/i386/pr80819-2.c: New test.
+
        2017-11-24  Jakub Jelinek  <jakub@redhat.com>
  
        PR sanitizer/83014

diff --git a/gcc/testsuite/gcc.target/i386/pr80819-1.c b/gcc/testsuite/gcc.target/i386/pr80819-1.c
new file mode 100644 (file)
index 0000000..f06c362
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr80819-1.c
@@ -0,0 +1,13 @@
+/* PR target/80819 */
+/* { dg-do compile { target { ! ia32 } } } */
+/* { dg-options "-O2 -msse4 -mno-avx -mtune=haswell -masm=att" } */
+
+typedef unsigned long long V __attribute__((vector_size (16)));
+
+V
+foo (unsigned long long x, unsigned long long y)
+{
+  return (V) { x, y };
+}
+
+/* { dg-final { scan-assembler-not "movq\[ \t]*%rsi, \[-0-9]*\\(" } } */

diff --git a/gcc/testsuite/gcc.target/i386/pr80819-2.c b/gcc/testsuite/gcc.target/i386/pr80819-2.c
new file mode 100644 (file)
index 0000000..7571e81
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr80819-2.c
@@ -0,0 +1,13 @@
+/* PR target/80819 */
+/* { dg-do compile { target { ! ia32 } } } */
+/* { dg-options "-O2 -msse4 -mno-avx -mtune=generic -masm=att" } */
+
+typedef unsigned long long V __attribute__((vector_size (16)));
+
+V
+foo (unsigned long long x, unsigned long long y)
+{
+  return (V) { x, y };
+}
+
+/* { dg-final { scan-assembler-not "movq\[ \t]*%rsi, \[-0-9]*\\(" } } */