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* [PATCH] mips: simplify longjmp
@ 2019-09-11 10:05 info
  0 siblings, 0 replies; only message in thread
From: info @ 2019-09-11 10:05 UTC (permalink / raw)
  To: musl

borrowed from the risc-v code.

OR (not ADDU) is intentional to please 74K* pipeline.
---
 src/setjmp/mips/longjmp.S | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/src/setjmp/mips/longjmp.S b/src/setjmp/mips/longjmp.S
index fdb6c95d..c3dd54ea 100644
--- a/src/setjmp/mips/longjmp.S
+++ b/src/setjmp/mips/longjmp.S
@@ -6,11 +6,6 @@
 .type   longjmp,@function
 _longjmp:
 longjmp:
-	move    $2, $5
-	bne     $2, $0, 1f
-	nop
-	addu    $2, $2, 1
-1:
 #ifndef __mips_soft_float
 	lwc1    $20, 56($4)
 	lwc1    $21, 60($4)
@@ -36,5 +31,7 @@ longjmp:
 	lw      $22, 32($4)
 	lw      $23, 36($4)
 	lw      $30, 40($4)
-	jr      $ra
 	lw      $28, 44($4)
+	sltiu	$2, $5, 1
+	jr      $ra
+	 or	$2, $5, $2
\ No newline at end of file
-- 
2.23.0.windows.1




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