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S/390: Further bswap enhancements.

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gcc/ChangeLog:

2015-12-02  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.md ("bswap<mode>2"): Add support for strv and
	strvg.
	("bswaphi2"): New pattern.
	New splitter for HI reg-reg bswap.

gcc/testsuite/ChangeLog:

2015-12-02  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* gcc.target/s390/bswap-1.c (foo64c, foo32a, foo32c): New functions.
	* gcc.target/s390/bswaphi-1.c: New test.

From-SVN: r231152
This commit is contained in:
Andreas Krebbel 2015-12-02 07:49:47 +00:00 committed by Andreas Krebbel
parent a233c89144
commit 6f5a59d1d1
5 changed files with 88 additions and 15 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2015-12-02 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
* config/s390/s390.md ("bswap<mode>2"): Add support for strv and
strvg.
("bswaphi2"): New pattern.
New splitter for HI reg-reg bswap.
2015-11-27 Jiri Engelthaler <engycz@gmail.com>
PR driver/68029

38
gcc/config/s390/s390.md
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@ -10451,25 +10451,43 @@
; FIXME: There is also mvcin but we cannot use it since src and target
; may overlap.
(define_insn "bswap<mode>2"
[(set (match_operand:GPR 0 "register_operand" "=d, d")
(bswap:GPR (match_operand:GPR 1 "nonimmediate_operand" " d,RT")))]
[(set (match_operand:GPR 0 "nonimmediate_operand" "=d, d,RT")
(bswap:GPR (match_operand:GPR 1 "nonimmediate_operand" " d,RT, d")))]
"TARGET_CPU_ZARCH"
"@
lrv<g>r\t%0,%1
lrv<g>\t%0,%1"
[(set_attr "type" "*,load")
(set_attr "op_type" "RRE,RXY")
lrv<g>\t%0,%1
strv<g>\t%1,%0"
[(set_attr "type" "*,load,store")
(set_attr "op_type" "RRE,RXY,RXY")
(set_attr "z10prop" "z10_super")])
(define_insn "bswaphi2"
[(set (match_operand:HI 0 "register_operand" "=d")
(bswap:HI (match_operand:HI 1 "memory_operand" "RT")))]
[(set (match_operand:HI 0 "nonimmediate_operand" "=d, d,RT")
(bswap:HI (match_operand:HI 1 "nonimmediate_operand" " d,RT, d")))]
"TARGET_CPU_ZARCH"
"lrvh\t%0,%1"
[(set_attr "type" "load")
(set_attr "op_type" "RXY")
"@
#
lrvh\t%0,%1
strvh\t%1,%0"
[(set_attr "type" "*,load,store")
(set_attr "op_type" "RRE,RXY,RXY")
(set_attr "z10prop" "z10_super")])
(define_split
[(set (match_operand:HI 0 "register_operand" "")
(bswap:HI (match_operand:HI 1 "register_operand" "")))]
"TARGET_CPU_ZARCH"
[(set (match_dup 2) (bswap:SI (match_dup 3)))
(set (match_dup 2) (lshiftrt:SI (match_dup 2)
(const_int 16)))
(set (match_dup 0) (subreg:HI (match_dup 2) 2))]
{
operands[2] = gen_reg_rtx (SImode);
operands[3] = simplify_gen_subreg (SImode, operands[1], HImode, 0);
})
;
; Population count instruction
;

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2015-12-02 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
* gcc.target/s390/bswap-1.c (foo64c, foo32a, foo32c): New functions.
* gcc.target/s390/bswaphi-1.c: New test.
2015-12-02 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
* lib/target-supports.exp: Add s390 and s390x to the list of long

26
gcc/testsuite/gcc.target/s390/bswap-1.c
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@ -21,16 +21,32 @@ foo64b ()
}
/* { dg-final { scan-assembler-times "lrvg\t%r2,0\\(%r\[0-9\]*\\)" 1 { target lp64 } } } */
void
foo64c (uint64_t a)
{
u64 = __builtin_bswap64 (a);
}
/* { dg-final { scan-assembler-times "strvg\t%r2,0\\(%r\[0-9\]*\\)" 1 { target lp64 } } } */
uint32_t
foo32 ()
foo32a (uint32_t a)
{
return __builtin_bswap32 (a);
}
/* { dg-final { scan-assembler-times "lrvr\t%r2,%r2" 1 } } */
uint32_t
foo32b ()
{
return __builtin_bswap32 (u32);
}
/* { dg-final { scan-assembler-times "lrv\t%r2,0\\(%r\[0-9\]*\\)" 1 } } */
uint16_t
foo16 ()
void
foo32c (uint32_t a)
{
return __builtin_bswap16 (u16);
u32 = __builtin_bswap32 (a);
}
/* { dg-final { scan-assembler-times "lrvh\t%r2,0\\(%r\[0-9\]*\\)" 1 } } */
/* { dg-final { scan-assembler-times "strv\t%r2,0\\(%r\[0-9\]*\\)" 1 } } */

27
gcc/testsuite/gcc.target/s390/bswaphi-1.c Normal file
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@ -0,0 +1,27 @@
/* { dg-do compile } */
/* { dg-options "-O3 -march=z900 -mzarch" } */
#include <stdint.h>
uint16_t u16;
uint16_t
foo16a (uint16_t a)
{
return __builtin_bswap16 (a);
}
/* { dg-final { scan-assembler-times "lrvr\t%r2,%r\[0-9\]*" 1 } } */
uint16_t
foo16b ()
{
return __builtin_bswap16 (u16);
}
/* { dg-final { scan-assembler-times "lrvh\t%r2,0\\(%r\[0-9\]*\\)" 1 } } */
void
foo16c (uint16_t a)
{
u16 = __builtin_bswap16 (a);
}
/* { dg-final { scan-assembler-times "strvh\t%r2,0\\(%r\[0-9\]*\\)" 1 } } */