h8300-protos.h: Add a prototype for compute_mov_length.
* config/h8300/h8300-protos.h: Add a prototype for compute_mov_length. * config/h8300/h8300.c (compute_mov_length): New. * config/h8300/h8300.md (*movqi_h8300): Use it. (*movqi_h8300hs): Likewise. (movstrictqi): Likewise. (*movhi_h8300): Likewise. (*movhi_h8300hs): Likewise. (movstricthi): Likewise. (*movsi_h8300): Likewise. (*movsf_h8300): Likewise. (*movsi_h8300hs): Likewise. (*movsf_h8300hs): Likewise. From-SVN: r68454
This commit is contained in:
Kazu Hirata
Kazu Hirata
parent
e5b0e711e8
commit
7948a9eac2
@ -1,3 +1,19 @@
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2003-06-24 Kazu Hirata <kazu@cs.umass.edu>
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* config/h8300/h8300-protos.h: Add a prototype for
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compute_mov_length.
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* config/h8300/h8300.c (compute_mov_length): New.
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* config/h8300/h8300.md (*movqi_h8300): Use it.
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(*movqi_h8300hs): Likewise.
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(movstrictqi): Likewise.
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(*movhi_h8300): Likewise.
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(*movhi_h8300hs): Likewise.
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(movstricthi): Likewise.
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(*movsi_h8300): Likewise.
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(*movsf_h8300): Likewise.
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(*movsi_h8300hs): Likewise.
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(*movsf_h8300hs): Likewise.
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2003-06-24 Kazu Hirata <kazu@cs.umass.edu>
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2003-06-24 Kazu Hirata <kazu@cs.umass.edu>
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* jump.c (next_nondeleted_insn): Remove.
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* jump.c (next_nondeleted_insn): Remove.
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@ -26,6 +26,7 @@ Boston, MA 02111-1307, USA. */
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/* Declarations for functions used in insn-output.c. */
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/* Declarations for functions used in insn-output.c. */
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#ifdef RTX_CODE
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#ifdef RTX_CODE
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extern unsigned int compute_mov_length (rtx *);
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extern const char *output_plussi (rtx *);
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extern const char *output_plussi (rtx *);
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extern unsigned int compute_plussi_length (rtx *);
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extern unsigned int compute_plussi_length (rtx *);
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extern int compute_plussi_cc (rtx *);
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extern int compute_plussi_cc (rtx *);
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@ -1806,6 +1806,255 @@ bit_operator (rtx x, enum machine_mode mode ATTRIBUTE_UNUSED)
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|| code == IOR);
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|| code == IOR);
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}
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}
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/* Return the length of mov instruction. */
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unsigned int
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compute_mov_length (rtx *operands)
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{
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/* If the mov instruction involves a memory operand, we compute the
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length, assuming the largest addressing mode is used, and then
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adjust later in the function. Otherwise, we compute and return
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the exact length in one step. */
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enum machine_mode mode = GET_MODE (operands[0]);
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rtx dest = operands[0];
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rtx src = operands[1];
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rtx addr;
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if (GET_CODE (src) == MEM)
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addr = XEXP (src, 0);
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else if (GET_CODE (dest) == MEM)
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addr = XEXP (dest, 0);
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else
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addr = NULL_RTX;
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if (TARGET_H8300)
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{
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unsigned int base_length;
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switch (mode)
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{
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case QImode:
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if (addr == NULL_RTX)
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return 2;
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/* The eightbit addressing is available only in QImode, so
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go ahead and take care of it. */
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if (h8300_eightbit_constant_address_p (addr))
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return 2;
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base_length = 4;
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break;
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case HImode:
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if (addr == NULL_RTX)
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{
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if (REG_P (src))
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return 2;
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if (src == const0_rtx)
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return 2;
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return 4;
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}
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base_length = 4;
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break;
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case SImode:
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if (addr == NULL_RTX)
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{
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if (REG_P (src))
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return 4;
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if (GET_CODE (src) == CONST_INT)
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{
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if (src == const0_rtx)
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return 4;
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if ((INTVAL (src) & 0xffff) == 0)
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return 6;
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if ((INTVAL (src) & 0xffff) == 0)
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return 6;
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}
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return 8;
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}
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base_length = 8;
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break;
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case SFmode:
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if (addr == NULL_RTX)
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{
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if (REG_P (src))
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return 4;
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if (src == const0_rtx)
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return 2;
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return 6;
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}
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base_length = 8;
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break;
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default:
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abort ();
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}
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/* Adjust the length based on the addressing mode used.
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Specifically, we subtract the difference between the actual
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length and the longest one, which is @(d:16,Rs). For SImode
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and SFmode, we double the adjustment because two mov.w are
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used to do the job. */
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/* @Rs+ and @-Rd are 2 bytes shorter than the longest. */
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if (GET_CODE (addr) == PRE_DEC
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|| GET_CODE (addr) == POST_INC)
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{
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if (mode == QImode || mode == HImode)
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return base_length - 2;
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else
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/* In SImode and SFmode, we use two mov.w instructions, so
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double the adustment. */
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return base_length - 4;
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}
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/* @Rs and @Rd are 2 bytes shorter than the longest. Note that
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in SImode and SFmode, the second mov.w involves an address
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with displacement, namely @(2,Rs) or @(2,Rd), so we subtract
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only 2 bytes. */
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if (GET_CODE (addr) == REG)
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return base_length - 2;
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return base_length;
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}
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else
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{
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unsigned int base_length;
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switch (mode)
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{
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case QImode:
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if (addr == NULL_RTX)
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return 2;
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/* The eightbit addressing is available only in QImode, so
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go ahead and take care of it. */
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if (h8300_eightbit_constant_address_p (addr))
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return 2;
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base_length = 8;
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break;
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case HImode:
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if (addr == NULL_RTX)
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{
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if (REG_P (src))
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return 2;
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if (src == const0_rtx)
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return 2;
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return 4;
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}
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base_length = 8;
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break;
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case SImode:
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if (addr == NULL_RTX)
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{
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if (REG_P (src))
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{
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if (REGNO (src) == MAC_REG || REGNO (dest) == MAC_REG)
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return 4;
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else
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return 2;
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}
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if (GET_CODE (src) == CONST_INT)
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{
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int val = INTVAL (src);
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if (val == 0)
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return 2;
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if (val == (val & 0x00ff) || val == (val & 0xff00))
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return 4;
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switch (val & 0xffffffff)
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{
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case 0xffffffff:
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case 0xfffffffe:
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case 0xfffffffc:
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case 0x0000ffff:
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case 0x0000fffe:
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case 0xffff0000:
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case 0xfffe0000:
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case 0x00010000:
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case 0x00020000:
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return 4;
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}
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}
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return 6;
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}
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base_length = 10;
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break;
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case SFmode:
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if (addr == NULL_RTX)
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{
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if (REG_P (src))
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return 2;
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if (src == const0_rtx)
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return 2;
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return 6;
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}
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base_length = 10;
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break;
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default:
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abort ();
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}
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/* Adjust the length based on the addressing mode used.
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Specifically, we subtract the difference between the actual
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length and the longest one, which is @(d:24,ERs). */
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/* @ERs+ and @-ERd are 6 bytes shorter than the longest. */
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if (GET_CODE (addr) == PRE_DEC
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|| GET_CODE (addr) == POST_INC)
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return base_length - 6;
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/* @ERs and @ERd are 6 bytes shorter than the longest. */
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if (GET_CODE (addr) == REG)
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return base_length - 6;
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/* @(d:16,ERs) and @(d:16,ERd) are 4 bytes shorter than the
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longest. */
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if (GET_CODE (addr) == PLUS
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&& GET_CODE (XEXP (addr, 0)) == REG
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&& GET_CODE (XEXP (addr, 1)) == CONST_INT
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&& INTVAL (XEXP (addr, 1)) > -32768
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&& INTVAL (XEXP (addr, 1)) < 32767)
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return base_length - 4;
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/* @aa:16 is 4 bytes shorter than the longest. */
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if (h8300_tiny_constant_address_p (addr))
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return base_length - 4;
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/* @aa:24 is 2 bytes shorter than the longest. */
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if (CONSTANT_P (addr))
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return base_length - 2;
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return base_length;
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}
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}
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const char *
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const char *
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output_plussi (rtx *operands)
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output_plussi (rtx *operands)
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{
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{
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@ -4067,101 +4316,6 @@ h8300_adjust_insn_length (rtx insn, int length ATTRIBUTE_UNUSED)
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if (get_attr_adjust_length (insn) == ADJUST_LENGTH_NO)
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if (get_attr_adjust_length (insn) == ADJUST_LENGTH_NO)
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return 0;
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return 0;
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/* Adjust length for reg->mem and mem->reg copies. */
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if (GET_CODE (pat) == SET
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&& (GET_CODE (SET_SRC (pat)) == MEM
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|| GET_CODE (SET_DEST (pat)) == MEM))
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{
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/* This insn might need a length adjustment. */
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rtx addr;
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if (GET_CODE (SET_SRC (pat)) == MEM)
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addr = XEXP (SET_SRC (pat), 0);
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else
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addr = XEXP (SET_DEST (pat), 0);
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if (TARGET_H8300)
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{
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/* On the H8/300, we subtract the difference between the
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actual length and the longest one, which is @(d:16,ERs). */
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/* @Rs is 2 bytes shorter than the longest. */
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if (GET_CODE (addr) == REG)
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return -2;
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/* @aa:8 is 2 bytes shorter than the longest. */
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if (GET_MODE (SET_SRC (pat)) == QImode
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&& h8300_eightbit_constant_address_p (addr))
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return -2;
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}
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else
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{
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/* On the H8/300H and H8S, we subtract the difference
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between the actual length and the longest one, which is
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@(d:24,ERs). */
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/* @ERs is 6 bytes shorter than the longest. */
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if (GET_CODE (addr) == REG)
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return -6;
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/* @(d:16,ERs) is 6 bytes shorter than the longest. */
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if (GET_CODE (addr) == PLUS
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&& GET_CODE (XEXP (addr, 0)) == REG
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&& GET_CODE (XEXP (addr, 1)) == CONST_INT
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&& INTVAL (XEXP (addr, 1)) > -32768
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&& INTVAL (XEXP (addr, 1)) < 32767)
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return -4;
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/* @aa:8 is 6 bytes shorter than the longest. */
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if (GET_MODE (SET_SRC (pat)) == QImode
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&& h8300_eightbit_constant_address_p (addr))
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return -6;
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/* @aa:16 is 4 bytes shorter than the longest. */
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if (h8300_tiny_constant_address_p (addr))
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return -4;
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/* @aa:24 is 2 bytes shorter than the longest. */
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if (GET_CODE (addr) == CONST_INT)
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return -2;
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}
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}
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/* Loading some constants needs adjustment. */
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if (GET_CODE (pat) == SET
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&& GET_CODE (SET_SRC (pat)) == CONST_INT
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&& GET_MODE (SET_DEST (pat)) == SImode
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&& INTVAL (SET_SRC (pat)) != 0)
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{
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int val = INTVAL (SET_SRC (pat));
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if (TARGET_H8300
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&& ((val & 0xffff) == 0
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|| ((val >> 16) & 0xffff) == 0))
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return -2;
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if (TARGET_H8300H || TARGET_H8300S)
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{
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if (val == (val & 0xff)
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|| val == (val & 0xff00))
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return 4 - 6;
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switch (val & 0xffffffff)
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{
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case 0xffffffff:
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case 0xfffffffe:
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case 0xfffffffc:
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case 0x0000ffff:
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case 0x0000fffe:
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case 0xffff0000:
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case 0xfffe0000:
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case 0x00010000:
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case 0x00020000:
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return 4 - 6;
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}
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}
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}
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/* Rotations need various adjustments. */
|
/* Rotations need various adjustments. */
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if (GET_CODE (pat) == SET
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if (GET_CODE (pat) == SET
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&& (GET_CODE (SET_SRC (pat)) == ROTATE
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&& (GET_CODE (SET_SRC (pat)) == ROTATE
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@ -179,7 +179,8 @@
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mov.b %R1,%X0
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mov.b %R1,%X0
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mov.b %R1,%X0
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mov.b %R1,%X0
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mov.b %X1,%R0"
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mov.b %X1,%R0"
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[(set_attr "length" "2,2,2,2,8,8")
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[(set (attr "length")
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(symbol_ref "compute_mov_length (operands)"))
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(set_attr "cc" "set_zn,set_znv,set_znv,clobber,set_znv,set_znv")])
|
(set_attr "cc" "set_zn,set_znv,set_znv,clobber,set_znv,set_znv")])
|
||||||
|
|
||||||
(define_expand "movqi"
|
(define_expand "movqi"
|
||||||
@ -205,9 +206,8 @@
|
|||||||
mov.b %X1,%X0
|
mov.b %X1,%X0
|
||||||
mov.b %R1,%X0
|
mov.b %R1,%X0
|
||||||
mov.b %R1,%X0"
|
mov.b %R1,%X0"
|
||||||
[(set_attr_alternative "length"
|
[(set (attr "length")
|
||||||
[(const_int 2) (const_int 2) (const_int 2)
|
(symbol_ref "compute_mov_length (operands)"))
|
||||||
(if_then_else (eq_attr "cpu" "h8300") (const_int 4) (const_int 8))])
|
|
||||||
(set_attr "cc" "set_zn,set_znv,set_znv,set_znv")])
|
(set_attr "cc" "set_zn,set_znv,set_znv,set_znv")])
|
||||||
|
|
||||||
;; movhi
|
;; movhi
|
||||||
@ -260,7 +260,8 @@
|
|||||||
mov.w %T1,%T0
|
mov.w %T1,%T0
|
||||||
mov.w %T1,%T0
|
mov.w %T1,%T0
|
||||||
mov.w %T1,%T0"
|
mov.w %T1,%T0"
|
||||||
[(set_attr "length" "2,2,2,4,4,4")
|
[(set (attr "length")
|
||||||
|
(symbol_ref "compute_mov_length (operands)"))
|
||||||
(set_attr "cc" "set_zn,set_znv,set_znv,set_znv,set_znv,set_znv")])
|
(set_attr "cc" "set_zn,set_znv,set_znv,set_znv,set_znv,set_znv")])
|
||||||
|
|
||||||
(define_insn "*movhi_h8300hs"
|
(define_insn "*movhi_h8300hs"
|
||||||
@ -276,7 +277,8 @@
|
|||||||
mov.w %T1,%T0
|
mov.w %T1,%T0
|
||||||
mov.w %T1,%T0
|
mov.w %T1,%T0
|
||||||
mov.w %T1,%T0"
|
mov.w %T1,%T0"
|
||||||
[(set_attr "length" "2,2,2,4,8,8")
|
[(set (attr "length")
|
||||||
|
(symbol_ref "compute_mov_length (operands)"))
|
||||||
(set_attr "cc" "set_zn,set_znv,set_znv,set_znv,set_znv,set_znv")])
|
(set_attr "cc" "set_zn,set_znv,set_znv,set_znv,set_znv,set_znv")])
|
||||||
|
|
||||||
(define_expand "movhi"
|
(define_expand "movhi"
|
||||||
@ -302,9 +304,8 @@
|
|||||||
mov.w %T1,%T0
|
mov.w %T1,%T0
|
||||||
mov.w %T1,%T0
|
mov.w %T1,%T0
|
||||||
mov.w %T1,%T0"
|
mov.w %T1,%T0"
|
||||||
[(set_attr_alternative "length"
|
[(set (attr "length")
|
||||||
[(const_int 2) (const_int 2) (const_int 4)
|
(symbol_ref "compute_mov_length (operands)"))
|
||||||
(if_then_else (eq_attr "cpu" "h8300") (const_int 4) (const_int 8))])
|
|
||||||
(set_attr "cc" "set_zn,set_znv,set_znv,set_znv")])
|
(set_attr "cc" "set_zn,set_znv,set_znv,set_znv")])
|
||||||
|
|
||||||
;; movsi
|
;; movsi
|
||||||
@ -416,7 +417,8 @@
|
|||||||
abort ();
|
abort ();
|
||||||
}
|
}
|
||||||
}"
|
}"
|
||||||
[(set_attr "length" "4,4,8,8,4,4")
|
[(set (attr "length")
|
||||||
|
(symbol_ref "compute_mov_length (operands)"))
|
||||||
(set_attr "cc" "clobber")])
|
(set_attr "cc" "clobber")])
|
||||||
|
|
||||||
(define_insn "*movsf_h8300"
|
(define_insn "*movsf_h8300"
|
||||||
@ -472,7 +474,8 @@
|
|||||||
abort ();
|
abort ();
|
||||||
}
|
}
|
||||||
}"
|
}"
|
||||||
[(set_attr "length" "4,4,8,8,4,4")
|
[(set (attr "length")
|
||||||
|
(symbol_ref "compute_mov_length (operands)"))
|
||||||
(set_attr "cc" "clobber")])
|
(set_attr "cc" "clobber")])
|
||||||
|
|
||||||
(define_insn "*movsi_h8300hs"
|
(define_insn "*movsi_h8300hs"
|
||||||
@ -547,7 +550,8 @@
|
|||||||
}
|
}
|
||||||
return \"mov.l %S1,%S0\";
|
return \"mov.l %S1,%S0\";
|
||||||
}"
|
}"
|
||||||
[(set_attr "length" "2,2,6,4,4,10,10,2,6,4")
|
[(set (attr "length")
|
||||||
|
(symbol_ref "compute_mov_length (operands)"))
|
||||||
(set_attr "cc" "set_zn,set_znv,clobber,set_znv,set_znv,set_znv,set_znv,none_0hit,none_0hit,set_znv")])
|
(set_attr "cc" "set_zn,set_znv,clobber,set_znv,set_znv,set_znv,set_znv,none_0hit,none_0hit,set_znv")])
|
||||||
|
|
||||||
(define_insn "*movsf_h8300h"
|
(define_insn "*movsf_h8300h"
|
||||||
@ -563,7 +567,8 @@
|
|||||||
mov.l %S1,%S0
|
mov.l %S1,%S0
|
||||||
mov.l %S1,%S0
|
mov.l %S1,%S0
|
||||||
mov.l %S1,%S0"
|
mov.l %S1,%S0"
|
||||||
[(set_attr "length" "2,2,10,10,4,4")
|
[(set (attr "length")
|
||||||
|
(symbol_ref "compute_mov_length (operands)"))
|
||||||
(set_attr "cc" "set_zn,set_znv,set_znv,set_znv,set_znv,set_znv")])
|
(set_attr "cc" "set_zn,set_znv,set_znv,set_znv,set_znv,set_znv")])
|
||||||
|
|
||||||
;; ----------------------------------------------------------------------
|
;; ----------------------------------------------------------------------
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user