[gcc/devel/gccgo] i386: Add V2SFmode sqrt insn pattern [PR95046]

[Ian Lance Taylor]

https://gcc.gnu.org/g:2b2d298ff845ab7a07ffbd51da79473736da3324

commit 2b2d298ff845ab7a07ffbd51da79473736da3324
Author: Uros Bizjak <ubizjak@gmail.com>
Date:   Mon May 11 20:12:14 2020 +0200

    i386: Add V2SFmode sqrt insn pattern [PR95046]
    
    gcc/ChangeLog:
    
    2020-05-11  Uroš Bizjak  <ubizjak@gmail.com>
    
            PR target/95046
            * config/i386/mmx.md (sqrtv2sf2): New insn pattern.
    
    testsuite/ChangeLog:
    
    2020-05-11  Uroš Bizjak  <ubizjak@gmail.com>
    
            PR target/95046
            * gcc.target/i386/pr95046-1.c (test_sqrt): Add.

Diff:
---
 gcc/ChangeLog                             |  5 +++++
 gcc/config/i386/mmx.md                    | 14 ++++++++++++++
 gcc/testsuite/ChangeLog                   |  5 +++++
 gcc/testsuite/gcc.target/i386/pr95046-1.c | 11 +++++++++++
 4 files changed, 35 insertions(+)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 7933c2c3a6f..d9f96a564af 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2020-05-11  Uroš Bizjak  <ubizjak@gmail.com>
+
+	PR target/95046
+	* config/i386/mmx.md (sqrtv2sf2): New insn pattern.
+
 2020-05-11  Kelvin Nilsen  <kelvin@gcc.gnu.org>
 
 	* config/rs6000/altivec.h (vec_cfuge): New #define.
diff --git a/gcc/config/i386/mmx.md b/gcc/config/i386/mmx.md
index 7d76c631a77..a8f603b94f8 100644
--- a/gcc/config/i386/mmx.md
+++ b/gcc/config/i386/mmx.md
@@ -461,6 +461,20 @@
    (set_attr "prefix_extra" "1")
    (set_attr "mode" "V2SF")])
 
+(define_insn "sqrtv2sf2"
+  [(set (match_operand:V2SF 0 "register_operand" "=x,v")
+	(sqrt:V2SF (match_operand:V2SF 1 "register_operand" "0,v")))]
+  "TARGET_MMX_WITH_SSE"
+  "@
+   sqrtps\t{%1, %0|%0, %1}
+   vsqrtps\t{%1, %0|%0, %1}"
+  [(set_attr "isa" "noavx,avx")
+   (set_attr "type" "sse")
+   (set_attr "atom_sse_attr" "sqrt")
+   (set_attr "btver2_sse_attr" "sqrt")
+   (set_attr "prefix" "orig,vex")
+   (set_attr "mode" "V4SF")])
+
 (define_insn "mmx_rsqrtv2sf2"
   [(set (match_operand:V2SF 0 "register_operand" "=y")
 	(unspec:V2SF [(match_operand:V2SF 1 "nonimmediate_operand" "ym")]
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 8bd3ef092af..158cf3857ba 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2020-05-11  Uroš Bizjak  <ubizjak@gmail.com>
+
+	PR target/95046
+	* gcc.target/i386/pr95046-1.c (test_sqrt): Add.
+
 2020-05-11  Kelvin Nilsen  <kelvin@gcc.gnu.org>
 
 	* gcc.target/powerpc/vec-cfuged-0.c: New test.
diff --git a/gcc/testsuite/gcc.target/i386/pr95046-1.c b/gcc/testsuite/gcc.target/i386/pr95046-1.c
index f93d9e1a507..7adc2069c53 100644
--- a/gcc/testsuite/gcc.target/i386/pr95046-1.c
+++ b/gcc/testsuite/gcc.target/i386/pr95046-1.c
@@ -49,3 +49,14 @@ test_max (void)
 }
 
 /* { dg-final { scan-assembler "maxps" } } */
+
+float sqrtf (float);
+
+void
+test_sqrt (void)
+{
+  for (int i = 0; i < 2; i++)
+    r[i] = sqrtf (a[i]);
+}
+
+/* { dg-final { scan-assembler "sqrtps" } } */