diff options
| author | jcmvbkbc <jcmvbkbc@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-10-15 04:17:30 +0000 |
|---|---|---|
| committer | jcmvbkbc <jcmvbkbc@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-10-15 04:17:30 +0000 |
| commit | c090033b71b5b7e4c6499a2ae6f8b511c0a92e81 (patch) | |
| tree | 02e6a8322a340ad402e350f0290d99df547e8139 /gcc/config/xtensa | |
| parent | 2e7fb8881099f1464d886566504e0477cdf20ba5 (diff) | |
| download | gcc-c090033b71b5b7e4c6499a2ae6f8b511c0a92e81.tar.gz | |
xtensa: drop unimplemented floating point operations
xtensa ISA never implemented FP division, reciprocal, square root and
inverse square root as single opcode. Remove patterns that can emit
them.
2014-10-09 Max Filippov <jcmvbkbc@gmail.com>
gcc/
* config/xtensa/xtensa.md (divsf3, *recipsf2, sqrtsf2, *rsqrtsf2):
remove.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@216233 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/config/xtensa')
| -rw-r--r-- | gcc/config/xtensa/xtensa.md | 44 |
1 files changed, 1 insertions, 43 deletions
diff --git a/gcc/config/xtensa/xtensa.md b/gcc/config/xtensa/xtensa.md index dddc6ab792c..0e3f0338767 100644 --- a/gcc/config/xtensa/xtensa.md +++ b/gcc/config/xtensa/xtensa.md @@ -82,7 +82,7 @@ ;; Attributes. (define_attr "type" - "unknown,jump,call,load,store,move,arith,multi,nop,farith,fmadd,fdiv,fsqrt,fconv,fload,fstore,mul16,mul32,div32,mac16,rsr,wsr,entry" + "unknown,jump,call,load,store,move,arith,multi,nop,farith,fmadd,fconv,fload,fstore,mul16,mul32,div32,mac16,rsr,wsr,entry" (const_string "unknown")) (define_attr "mode" @@ -360,26 +360,6 @@ (set_attr "mode" "SI") (set_attr "length" "3")]) -(define_insn "divsf3" - [(set (match_operand:SF 0 "register_operand" "=f") - (div:SF (match_operand:SF 1 "register_operand" "f") - (match_operand:SF 2 "register_operand" "f")))] - "TARGET_HARD_FLOAT_DIV" - "div.s\t%0, %1, %2" - [(set_attr "type" "fdiv") - (set_attr "mode" "SF") - (set_attr "length" "3")]) - -(define_insn "*recipsf2" - [(set (match_operand:SF 0 "register_operand" "=f") - (div:SF (match_operand:SF 1 "const_float_1_operand" "") - (match_operand:SF 2 "register_operand" "f")))] - "TARGET_HARD_FLOAT_RECIP && flag_unsafe_math_optimizations" - "recip.s\t%0, %2" - [(set_attr "type" "fdiv") - (set_attr "mode" "SF") - (set_attr "length" "3")]) - ;; Remainders. @@ -404,28 +384,6 @@ (set_attr "length" "3")]) -;; Square roots. - -(define_insn "sqrtsf2" - [(set (match_operand:SF 0 "register_operand" "=f") - (sqrt:SF (match_operand:SF 1 "register_operand" "f")))] - "TARGET_HARD_FLOAT_SQRT" - "sqrt.s\t%0, %1" - [(set_attr "type" "fsqrt") - (set_attr "mode" "SF") - (set_attr "length" "3")]) - -(define_insn "*rsqrtsf2" - [(set (match_operand:SF 0 "register_operand" "=f") - (div:SF (match_operand:SF 1 "const_float_1_operand" "") - (sqrt:SF (match_operand:SF 2 "register_operand" "f"))))] - "TARGET_HARD_FLOAT_RSQRT && flag_unsafe_math_optimizations" - "rsqrt.s\t%0, %2" - [(set_attr "type" "fsqrt") - (set_attr "mode" "SF") - (set_attr "length" "3")]) - - ;; Absolute value. (define_insn "abssi2" |