* [committed] hppa: Add clear_cache expander
@ 2023-05-17 20:39 John David Anglin
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From: John David Anglin @ 2023-05-17 20:39 UTC (permalink / raw)
To: GCC Patches
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Tested on hppa-unknown-linux-gnu and hppa64-hp-hpux11.11.
Committed to trunk.
Dave
---
Add clear_cache expander.
2023-05-17 John David Anglin <danglin@gcc.gnu.org>
gcc/ChangeLog:
* config/pa/pa.md (clear_cache): New.
diff --git a/gcc/config/pa/pa.md b/gcc/config/pa/pa.md
index 7b7d7f776c7..726e12768f8 100644
--- a/gcc/config/pa/pa.md
+++ b/gcc/config/pa/pa.md
@@ -9940,6 +9940,23 @@ add,l %2,%3,%3\;bv,n %%r0(%3)"
[(set_attr "type" "multi")
(set_attr "length" "52")])
+(define_expand "clear_cache"
+ [(match_operand 0 "pmode_register_operand")
+ (match_operand 1 "pmode_register_operand")]
+ ""
+{
+ rtx line_length = gen_reg_rtx (Pmode);
+
+ emit_move_insn (line_length, GEN_INT (MIN_CACHELINE_SIZE));
+ if (TARGET_64BIT)
+ emit_insn (gen_icacheflushdi (operands[0], operands[1], line_length,
+ gen_reg_rtx (Pmode), gen_reg_rtx (Pmode)));
+ else
+ emit_insn (gen_icacheflushsi (operands[0], operands[1], line_length,
+ gen_reg_rtx (Pmode), gen_reg_rtx (Pmode)));
+ DONE;
+})
+
;; An out-of-line prologue.
(define_insn "outline_prologue_call"
[(unspec_volatile [(const_int 0)] UNSPECV_OPC)
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2023-05-17 20:39 [committed] hppa: Add clear_cache expander John David Anglin
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