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2018-02-23 Jakub Jelinek <jakub@redhat.com>
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PR target/84524
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* config/i386/sse.md (*<mode>3): Replace <mask_prefix3> with
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orig,vex.
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(*<plusminus_insn><mode>3): Likewise. Remove <mask_operand3> uses.
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* gcc.c-torture/execute/pr84524.c: New test.
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* gcc.target/i386/avx512bw-pr84524.c: New test.
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--- gcc/config/i386/sse.md.jj 2018-02-13 09:31:24.769607162 +0100
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+++ gcc/config/i386/sse.md 2018-02-23 11:51:00.271477979 +0100
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@@ -9938,11 +9938,11 @@ (define_insn "*<plusminus_insn><mode>3"
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&& ix86_binary_operator_ok (, <MODE>mode, operands)"
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"@
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p<plusminus_mnemonic><ssemodesuffix>\t{%2, %0|%0, %2}
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- vp<plusminus_mnemonic><ssemodesuffix>\t{%2, %1, %0<mask_operand3>|%0<mask_operand3>, %1, %2}"
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+ vp<plusminus_mnemonic><ssemodesuffix>\t{%2, %1, %0|%0, %1, %2}"
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[(set_attr "isa" "noavx,avx")
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(set_attr "type" "sseiadd")
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(set_attr "prefix_data16" "1,*")
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- (set_attr "prefix" "<mask_prefix3>")
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+ (set_attr "prefix" "orig,vex")
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(set_attr "mode" "<sseinsnmode>")])
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(define_insn "*<plusminus_insn><mode>3_mask"
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@@ -11822,7 +11822,7 @@ (define_insn "*<mode>3"
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(eq_attr "mode" "TI"))
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(const_string "1")
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(const_string "*")))
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- (set_attr "prefix" "<mask_prefix3>")
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+ (set_attr "prefix" "orig,vex")
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(set (attr "mode")
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(cond [(and (match_test "<MODE_SIZE> == 16")
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(match_test "TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL"))
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--- gcc/testsuite/gcc.c-torture/execute/pr84524.c.jj 2018-02-23 11:54:51.913492631 +0100
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+++ gcc/testsuite/gcc.c-torture/execute/pr84524.c 2018-02-23 11:59:55.467511836 +0100
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@@ -0,0 +1,41 @@
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+/* PR target/84524 */
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+
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+__attribute__((noipa)) void
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+foo (unsigned short *x)
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+{
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+ unsigned short i, v;
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+ unsigned char j;
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+ for (i = 0; i < 256; i++)
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+ {
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+ v = i << 8;
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+ for (j = 0; j < 8; j++)
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+ if (v & 0x8000)
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+ v = (v << 1) ^ 0x1021;
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+ else
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+ v = v << 1;
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+ x[i] = v;
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+ }
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+}
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+
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+int
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+main ()
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+{
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+ unsigned short a[256];
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+
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+ foo (a);
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+ for (int i = 0; i < 256; i++)
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+ {
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+ unsigned short v = i << 8;
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+ for (int j = 0; j < 8; j++)
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+ {
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+ asm volatile ("" : "+r" (v));
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+ if (v & 0x8000)
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+ v = (v << 1) ^ 0x1021;
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+ else
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+ v = v << 1;
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+ }
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+ if (a[i] != v)
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+ __builtin_abort ();
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+ }
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+ return 0;
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+}
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--- gcc/testsuite/gcc.target/i386/avx512bw-pr84524.c.jj 2018-02-23 11:58:16.919505601 +0100
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+++ gcc/testsuite/gcc.target/i386/avx512bw-pr84524.c 2018-02-23 11:58:57.377508169 +0100
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@@ -0,0 +1,14 @@
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+/* PR target/84524 */
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+/* { dg-do run { target avx512bw } } */
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+/* { dg-options "-O3 -mavx512bw" } */
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+
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+#include "avx512bw-check.h"
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+
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+#define main() do_main()
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+#include "../../gcc.c-torture/execute/pr84524.c"
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+
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+static void
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+avx512bw_test (void)
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+{
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+ do_main ();
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+}
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