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riscv-gcc-1
Commit b6b12107 by Richard Kenner
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(divsi3): Fix divide by 2^N with compare RTL. 

From-SVN: r7498
parent f63184ac
Showing with 6 additions and 4 deletions
gcc/config/rs6000/rs6000.md
...@@ -1254,8 +1254,9 @@ ...@@ -1254,8 +1254,9 @@
(define_insn "" (define_insn ""
[(set (match_operand:CC 0 "cc_reg_operand" "=x") [(set (match_operand:CC 0 "cc_reg_operand" "=x")
(div:SI (match_operand:SI 1 "gpc_reg_operand" "r") (compare:CC (div:SI (match_operand:SI 1 "gpc_reg_operand" "r")
(match_operand:SI 2 "const_int_operand" "N"))) (match_operand:SI 2 "const_int_operand" "N"))
(const_int 0)))
(clobber (match_scratch:SI 3 "=r"))] (clobber (match_scratch:SI 3 "=r"))]
"exact_log2 (INTVAL (operands[2])) >= 0" "exact_log2 (INTVAL (operands[2])) >= 0"
"{srai|srawi} %3,%1,%p2\;{aze.|addze.} %3,%3" "{srai|srawi} %3,%1,%p2\;{aze.|addze.} %3,%3"
...@@ -1264,8 +1265,9 @@ ...@@ -1264,8 +1265,9 @@
(define_insn "" (define_insn ""
[(set (match_operand:CC 3 "cc_reg_operand" "=x") [(set (match_operand:CC 3 "cc_reg_operand" "=x")
(div:SI (match_operand:SI 1 "gpc_reg_operand" "r") (compare:CC (div:SI (match_operand:SI 1 "gpc_reg_operand" "r")
(match_operand:SI 2 "const_int_operand" "N"))) (match_operand:SI 2 "const_int_operand" "N"))
(const_int 0)))
(set (match_operand:SI 0 "gpc_reg_operand" "=r") (set (match_operand:SI 0 "gpc_reg_operand" "=r")
(div:SI (match_dup 1) (match_dup 2)))] (div:SI (match_dup 1) (match_dup 2)))]
"exact_log2 (INTVAL (operands[2])) >= 0" "exact_log2 (INTVAL (operands[2])) >= 0"
......
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