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rs6000: Use parameterized names for tablejump 

We have too many tablejump patterns.  Using parameterized names
simplifies the code a bit.

2020-09-29  Segher Boessenkool  <segher@kernel.crashing.org>

	* config/rs6000/rs6000.md (tablejump): Simplify.
	(tablejumpsi): Merge this ...
	(tablejumpdi): ... and this ...
	(@tablejump<mode>_normal): ... into this.
	(tablejumpsi_nospec): Merge this ...
	(tablejumpdi_nospec): ... and this ...
	(@tablejump<mode>_nospec): ... into this.
	(*tablejump<mode>_internal1): Delete, rename to ...
	(@tablejump<mode>_insn_normal): ... this.
	(*tablejump<mode>_internal1_nospec): Delete, rename to ...
	(@tablejump<mode>_insn_nospec): ... this.
This commit is contained in:
Segher Boessenkool 2020-09-28 23:57:52 +00:00
parent 873f8c1e6d
commit 58614b10ed
1 changed files with 43 additions and 62 deletions
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105
gcc/config/rs6000/rs6000.md
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@ -12697,12 +12697,7 @@
""
{
if (rs6000_speculate_indirect_jumps)
{
if (TARGET_32BIT)
emit_jump_insn (gen_tablejumpsi (operands[0], operands[1]));
else
emit_jump_insn (gen_tablejumpdi (operands[0], operands[1]));
}
emit_jump_insn (gen_tablejump_normal (Pmode, operands[0], operands[1]));
else
{
rtx ccreg = gen_reg_rtx (CCmode);
@ -12716,69 +12711,55 @@
DONE;
})
(define_expand "tablejumpsi"
[(set (match_dup 3)
(plus:SI (match_operand:SI 0)
(match_dup 2)))
(parallel [(set (pc)
(match_dup 3))
(use (label_ref (match_operand 1)))])]
"TARGET_32BIT && rs6000_speculate_indirect_jumps"
(define_expand "@tablejump<mode>_normal"
[(use (match_operand:SI 0))
(use (match_operand:P 1))]
"rs6000_speculate_indirect_jumps"
{
operands[0] = force_reg (SImode, operands[0]);
operands[2] = force_reg (SImode, gen_rtx_LABEL_REF (SImode, operands[1]));
operands[3] = gen_reg_rtx (SImode);
if (<MODE>mode == SImode)
operands[4] = operands[0];
else
{
operands[4] = gen_reg_rtx (Pmode);
rtx src = gen_rtx_fmt_e (SIGN_EXTEND, Pmode, operands[0]);
emit_move_insn (operands[4], src);
}
operands[2] = force_reg (Pmode, gen_rtx_LABEL_REF (Pmode, operands[1]));
operands[3] = gen_reg_rtx (Pmode);
emit_insn (gen_add<mode>3 (operands[3], operands[4], operands[2]));
emit_jump_insn (gen_tablejump_insn_normal (Pmode, operands[3], operands[1]));
DONE;
})
(define_expand "tablejumpsi_nospec"
[(set (match_dup 4)
(plus:SI (match_operand:SI 0)
(match_dup 3)))
(parallel [(set (pc)
(match_dup 4))
(use (label_ref (match_operand 1)))
(clobber (match_operand 2))])]
"TARGET_32BIT && !rs6000_speculate_indirect_jumps"
(define_expand "@tablejump<mode>_nospec"
[(use (match_operand:SI 0))
(use (match_operand:P 1))
(use (match_operand:CC 2))]
"!rs6000_speculate_indirect_jumps"
{
operands[0] = force_reg (SImode, operands[0]);
operands[3] = force_reg (SImode, gen_rtx_LABEL_REF (SImode, operands[1]));
operands[4] = gen_reg_rtx (SImode);
if (<MODE>mode == SImode)
operands[4] = operands[0];
else
{
operands[4] = gen_reg_rtx (Pmode);
rtx src = gen_rtx_fmt_e (SIGN_EXTEND, Pmode, operands[0]);
emit_move_insn (operands[4], src);
}
operands[5] = force_reg (Pmode, gen_rtx_LABEL_REF (Pmode, operands[1]));
operands[3] = gen_reg_rtx (Pmode);
emit_insn (gen_add<mode>3 (operands[3], operands[4], operands[5]));
emit_jump_insn (gen_tablejump_insn_nospec (Pmode, operands[3], operands[1],
operands[2]));
DONE;
})
(define_expand "tablejumpdi"
[(set (match_dup 4)
(sign_extend:DI (match_operand:SI 0 "lwa_operand")))
(set (match_dup 3)
(plus:DI (match_dup 4)
(match_dup 2)))
(parallel [(set (pc)
(match_dup 3))
(use (label_ref (match_operand 1)))])]
"TARGET_64BIT && rs6000_speculate_indirect_jumps"
{
operands[2] = force_reg (DImode, gen_rtx_LABEL_REF (DImode, operands[1]));
operands[3] = gen_reg_rtx (DImode);
operands[4] = gen_reg_rtx (DImode);
})
(define_expand "tablejumpdi_nospec"
[(set (match_dup 5)
(sign_extend:DI (match_operand:SI 0 "lwa_operand")))
(set (match_dup 4)
(plus:DI (match_dup 5)
(match_dup 3)))
(parallel [(set (pc)
(match_dup 4))
(use (label_ref (match_operand 1)))
(clobber (match_operand 2))])]
"TARGET_64BIT && !rs6000_speculate_indirect_jumps"
{
operands[3] = force_reg (DImode, gen_rtx_LABEL_REF (DImode, operands[1]));
operands[4] = gen_reg_rtx (DImode);
operands[5] = gen_reg_rtx (DImode);
})
(define_insn "*tablejump<mode>_internal1"
(define_insn "@tablejump<mode>_insn_normal"
[(set (pc)
(match_operand:P 0 "register_operand" "c,*l"))
(use (label_ref (match_operand 1)))]
@ -12786,7 +12767,7 @@
"b%T0"
[(set_attr "type" "jmpreg")])
(define_insn "*tablejump<mode>_internal1_nospec"
(define_insn "@tablejump<mode>_insn_nospec"
[(set (pc)
(match_operand:P 0 "register_operand" "c,*l"))
(use (label_ref (match_operand 1)))