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i386: Add V2DFmode float trunc/extend functions [PR95046]

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gcc/ChangeLog:

	PR target/95046
	* config/i386/sse.md (truncv2dfv2df2): New insn pattern.
	(extendv2sfv2df2): Ditto.

testsuite/ChangeLog:

	PR target/95046
	* gcc.target/i386/pr95046-7.c: New test.
This commit is contained in:
Uros Bizjak 2020-05-14 19:51:40 +02:00
parent 098cf31aa2
commit 9056cd8035
4 changed files with 69 additions and 0 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2020-05-14 Uroš Bizjak <ubizjak@gmail.com>
PR target/95046
* config/i386/sse.md (truncv2dfv2df2): New insn pattern.
(extendv2sfv2df2): Ditto.
2020-05-14 H.J. Lu <hongjiu.lu@intel.com>
* configure: Regenerated.

33
gcc/config/i386/sse.md
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@ -6504,6 +6504,25 @@
(set_attr "prefix" "maybe_vex")
(set_attr "mode" "V4SF")])
(define_insn "truncv2dfv2sf2"
[(set (match_operand:V2SF 0 "register_operand" "=v")
(float_truncate:V2SF
(match_operand:V2DF 1 "vector_operand" "vBm")))]
"TARGET_MMX_WITH_SSE"
{
if (TARGET_AVX)
return "vcvtpd2ps{x}\t{%1, %0|%0, %1}";
else
return "cvtpd2ps\t{%1, %0|%0, %1}";
}
[(set_attr "type" "ssecvt")
(set_attr "amdfam10_decode" "double")
(set_attr "athlon_decode" "vector")
(set_attr "bdver1_decode" "double")
(set_attr "prefix_data16" "1")
(set_attr "prefix" "maybe_vex")
(set_attr "mode" "V4SF")])
(define_insn "*sse2_cvtpd2ps_mask"
[(set (match_operand:V4SF 0 "register_operand" "=v")
(vec_concat:V4SF
@ -6664,6 +6683,20 @@
(set_attr "prefix" "maybe_vex")
(set_attr "mode" "V2DF")])
(define_insn "extendv2sfv2df2"
[(set (match_operand:V2DF 0 "register_operand" "=v")
(float_extend:V2DF
(match_operand:V2SF 1 "register_operand" "v")))]
"TARGET_MMX_WITH_SSE"
"%vcvtps2pd\t{%1, %0|%0, %1}"
[(set_attr "type" "ssecvt")
(set_attr "amdfam10_decode" "direct")
(set_attr "athlon_decode" "double")
(set_attr "bdver1_decode" "double")
(set_attr "prefix_data16" "0")
(set_attr "prefix" "maybe_vex")
(set_attr "mode" "V2DF")])
(define_expand "vec_unpacks_hi_v4sf"
[(set (match_dup 2)
(vec_select:V4SF

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2020-05-14 Uroš Bizjak <ubizjak@gmail.com>
PR target/95046
* gcc.target/i386/pr95046-7.c: New test.
2020-05-14 Patrick Palka <ppalka@redhat.com>
PR c++/78446

25
gcc/testsuite/gcc.target/i386/pr95046-7.c Normal file
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@ -0,0 +1,25 @@
/* PR target/95046 */
/* { dg-do compile { target { ! ia32 } } } */
/* { dg-options "-O3 -msse2" } */
float f[2];
double d[2];
void
test_float_truncate (void)
{
for (int i = 0; i < 2; i++)
f[i] = d[i];
}
/* { dg-final { scan-assembler "\tv?cvtpd2psx?" } } */
void
test_float_extend (void)
{
for (int i = 0; i < 2; i++)
d[i] = f[i];
}
/* { dg-final { scan-assembler "\tv?cvtps2pd" } } */