re PR target/91704 ([X86] Codegen for _mm256_cmpgt_epi8 is affected by -funsigned...

	PR target/91704
	* config/i386/avxintrin.h (__v32qs): New typedef.
	* config/i386/avx2intrin.h (_mm256_cmpgt_epi8): Use casts to __v32qs
	instead of __v32qi.

	* gcc.target/i386/pr91704.c: New test.

From-SVN: r275515

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c9012e0ebf6f0aadbc2f84da1eae39da07fc2820..94541446508c64851b4fef0de6cc97b7dd070157 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2019-09-09  Jakub Jelinek  <jakub@redhat.com>
+
+       PR target/91704
+       * config/i386/avxintrin.h (__v32qs): New typedef.
+       * config/i386/avx2intrin.h (_mm256_cmpgt_epi8): Use casts to __v32qs
+       instead of __v32qi.
+
 2019-09-08  Iain Sandoe  <iain@sandoe.co.uk>
 
        Backport from mainline

diff --git a/gcc/config/i386/avx2intrin.h b/gcc/config/i386/avx2intrin.h
index 82f170a3d61f4875d65c711433ed2020cb219027..1a96eaed13a8d6ebd01044fbc739acd31c609747 100644 (file)
--- a/gcc/config/i386/avx2intrin.h
+++ b/gcc/config/i386/avx2intrin.h
@@ -258,7 +258,7 @@ extern __inline __m256i
 __attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
 _mm256_cmpgt_epi8 (__m256i __A, __m256i __B)
 {
-  return (__m256i) ((__v32qi)__A > (__v32qi)__B);
+  return (__m256i) ((__v32qs)__A > (__v32qs)__B);
 }
 
 extern __inline __m256i

diff --git a/gcc/config/i386/avxintrin.h b/gcc/config/i386/avxintrin.h
index 20c5a078a9a55f3d8b9a59c04c865ecfc19ddf79..da1d9dbfc467f9f80ddce39b685b5bedd0e5221e 100644 (file)
--- a/gcc/config/i386/avxintrin.h
+++ b/gcc/config/i386/avxintrin.h
@@ -47,6 +47,7 @@ typedef unsigned int __v8su __attribute__ ((__vector_size__ (32)));
 typedef short __v16hi __attribute__ ((__vector_size__ (32)));
 typedef unsigned short __v16hu __attribute__ ((__vector_size__ (32)));
 typedef char __v32qi __attribute__ ((__vector_size__ (32)));
+typedef signed char __v32qs __attribute__ ((__vector_size__ (32)));
 typedef unsigned char __v32qu __attribute__ ((__vector_size__ (32)));
 
 /* The Intel API is flexible enough that we must allow aliasing with other

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index c50e55f15ff17cf4fe38c379092aba4708102061..d5064f48cca39ddc5f1959756cf0af53ef7161d3 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2019-09-09  Jakub Jelinek  <jakub@redhat.com>
+
+       PR target/91704
+       * gcc.target/i386/pr91704.c: New test.
+
 2019-09-08  Iain Sandoe  <iain@sandoe.co.uk>
 
        Backport from mainline.

diff --git a/gcc/testsuite/gcc.target/i386/pr91704.c b/gcc/testsuite/gcc.target/i386/pr91704.c
new file mode 100644 (file)
index 0000000..b996e24
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr91704.c
@@ -0,0 +1,14 @@
+/* PR target/91704 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -funsigned-char -mavx2 -mavx512f -masm=att" } */
+/* { dg-final { scan-assembler-times "\tvpcmpgtb\t%ymm" 1 } } */
+/* { dg-final { scan-assembler-not "\tvpsubusb\t" } } */
+/* { dg-final { scan-assembler-not "\tvpcmpeqb\t" } } */
+
+#include <x86intrin.h>
+
+__m256i
+foo (__m256i x, __m256i y)
+{
+  return _mm256_cmpgt_epi8 (x, y);
+}