From: David Edelsohn <dje.gcc@gmail.com>
Date: Fri, 15 Jan 2016 23:04:23 +0000 (+0000)
Subject: re PR target/68609 (PowerPC reciprocal estimate missed opportunities)
X-Git-Tag: basepoints/gcc-7~1577
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=28621a5c0255fc8f31e379df316828c5548680c2;p=thirdparty%2Fgcc.git

re PR target/68609 (PowerPC reciprocal estimate missed opportunities)

        PR target/68609
        * gcc.target/powerpc/recip-1.c: Adjust for Goldschmidt's Algorithm.
        * gcc.target/powerpc/recip-2.c: Same.
        * gcc.target/powerpc/recip-3.c: Same.
        * gcc.target/powerpc/recip-4.c: Same.
        * gcc.target/powerpc/recip-sqrtf.c: Same.

From-SVN: r232456
---

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index d9a92460ec1a..451003ac2c82 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,12 @@
+2016-01-15  David Edelsohn  <dje.gcc@gmail.com>
+
+	PR target/68609
+	* gcc.target/powerpc/recip-1.c: Adjust for Goldschmidt's Algorithm.
+	* gcc.target/powerpc/recip-2.c: Same.
+	* gcc.target/powerpc/recip-3.c: Same.
+	* gcc.target/powerpc/recip-4.c: Same.
+	* gcc.target/powerpc/recip-sqrtf.c: Same.
+
 2016-01-15  Jeff Law  <law@redhat.com>
 
 	PR tree-optimization/69270
diff --git a/gcc/testsuite/gcc.target/powerpc/recip-1.c b/gcc/testsuite/gcc.target/powerpc/recip-1.c
index 3c41d476a422..33df28e91985 100644
--- a/gcc/testsuite/gcc.target/powerpc/recip-1.c
+++ b/gcc/testsuite/gcc.target/powerpc/recip-1.c
@@ -3,9 +3,9 @@
 /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power6" } } */
 /* { dg-options "-O2 -mrecip -ffast-math -mcpu=power6" } */
 /* { dg-final { scan-assembler-times "frsqrte" 2 } } */
-/* { dg-final { scan-assembler-times "fmsub" 2 } } */
-/* { dg-final { scan-assembler-times "fmul" 6 } } */
+/* { dg-final { scan-assembler-times "fmul" 4 } } */
 /* { dg-final { scan-assembler-times "fnmsub" 3 } } */
+/* { dg-final { scan-assembler-times "fmadd" 4 } } */
 
 double
 rsqrt_d (double a)
diff --git a/gcc/testsuite/gcc.target/powerpc/recip-2.c b/gcc/testsuite/gcc.target/powerpc/recip-2.c
index e841302a301e..bf8d96838b7d 100644
--- a/gcc/testsuite/gcc.target/powerpc/recip-2.c
+++ b/gcc/testsuite/gcc.target/powerpc/recip-2.c
@@ -3,9 +3,10 @@
 /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power5" } } */
 /* { dg-options "-O2 -mrecip -ffast-math -mcpu=power5" } */
 /* { dg-final { scan-assembler-times "frsqrtes" 1 } } */
-/* { dg-final { scan-assembler-times "fmsubs" 1 } } */
-/* { dg-final { scan-assembler-times "fmuls" 6 } } */
+/* { dg-final { scan-assembler-times "fmuls" 2 } } */
 /* { dg-final { scan-assembler-times "fnmsubs" 3 } } */
+/* { dg-final { scan-assembler-times "fmadds" 5 } } */
+/* { dg-final { scan-assembler-times "fadds" 1 } } */
 /* { dg-final { scan-assembler-times "fsqrt" 1 } } */
 
 /* power5 resqrte is not accurate enough, and should not be generated by
diff --git a/gcc/testsuite/gcc.target/powerpc/recip-3.c b/gcc/testsuite/gcc.target/powerpc/recip-3.c
index a1ed5c34e44c..e3496ab82b32 100644
--- a/gcc/testsuite/gcc.target/powerpc/recip-3.c
+++ b/gcc/testsuite/gcc.target/powerpc/recip-3.c
@@ -3,12 +3,12 @@
 /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power7" } } */
 /* { dg-options "-O2 -mrecip -ffast-math -mcpu=power7" } */
 /* { dg-final { scan-assembler-times "xsrsqrtedp\|frsqrte\ " 1 } } */
-/* { dg-final { scan-assembler-times "xsmsub.dp\|fmsub\ " 1 } } */
-/* { dg-final { scan-assembler-times "xsmuldp\|fmul\ " 4 } } */
+/* { dg-final { scan-assembler-times "xsmuldp\|fmul\ " 2 } } */
 /* { dg-final { scan-assembler-times "xsnmsub.dp\|fnmsub\ " 2 } } */
+/* { dg-final { scan-assembler-times "xsmadd.dp\|fmadd\ " 3 } } */
 /* { dg-final { scan-assembler-times "xsrsqrtesp\|frsqrtes" 1 } } */
-/* { dg-final { scan-assembler-times "xsmsub.sp\|fmsubs" 1 } } */
 /* { dg-final { scan-assembler-times "xsmulsp\|fmuls" 2 } } */
+/* { dg-final { scan-assembler-times "xsmadd.sp\|fmadds" 1 } } */
 /* { dg-final { scan-assembler-times "xsnmsub.sp\|fnmsubs" 1 } } */
 
 double
diff --git a/gcc/testsuite/gcc.target/powerpc/recip-4.c b/gcc/testsuite/gcc.target/powerpc/recip-4.c
index 7d95cc97a9aa..54002d3c7a02 100644
--- a/gcc/testsuite/gcc.target/powerpc/recip-4.c
+++ b/gcc/testsuite/gcc.target/powerpc/recip-4.c
@@ -3,13 +3,13 @@
 /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power7" } } */
 /* { dg-options "-O3 -ftree-vectorize -mrecip -ffast-math -mcpu=power7 -fno-unroll-loops" } */
 /* { dg-final { scan-assembler-times "xvrsqrtedp" 1 } } */
-/* { dg-final { scan-assembler-times "xvmsub.dp" 1 } } */
-/* { dg-final { scan-assembler-times "xvmuldp" 4 } } */
+/* { dg-final { scan-assembler-times "xvmuldp" 2 } } */
 /* { dg-final { scan-assembler-times "xvnmsub.dp" 2 } } */
+/* { dg-final { scan-assembler-times "xvmadd.dp" 3 } } */
 /* { dg-final { scan-assembler-times "xvrsqrtesp" 1 } } */
-/* { dg-final { scan-assembler-times "xvmsub.sp" 1 } } */
 /* { dg-final { scan-assembler-times "xvmulsp" 2 } } */
 /* { dg-final { scan-assembler-times "xvnmsub.sp" 1 } } */
+/* { dg-final { scan-assembler-times "xvmadd.sp" 1 } } */
 
 #define SIZE 1024
 
diff --git a/gcc/testsuite/gcc.target/powerpc/recip-sqrtf.c b/gcc/testsuite/gcc.target/powerpc/recip-sqrtf.c
index 92798837e3e0..29839da8c14f 100644
--- a/gcc/testsuite/gcc.target/powerpc/recip-sqrtf.c
+++ b/gcc/testsuite/gcc.target/powerpc/recip-sqrtf.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -ffast-math -mcpu=power5 -mrecip" } */
+/* { dg-options "-O2 -ffast-math -mcpu=power6 -mrecip" } */
 
 extern float sqrtf (float);