The commutative attribute was once used by the SVE conditional binary
expanders, but it's now dead code.
Tested on aarch64-linux-gnu (with and without SVE) and aarch64_be-elf.
Applied as r274182.
Richard
2019-08-07 Richard Sandiford <richard.sandif...@arm.com>
gcc/
* config/aarch64/iterators.md (commutative): Remove.
Index: gcc/config/aarch64/iterators.md
===================================================================
--- gcc/config/aarch64/iterators.md 2019-08-07 19:27:50.000000000 +0100
+++ gcc/config/aarch64/iterators.md 2019-08-07 19:27:55.414720593 +0100
@@ -1925,10 +1925,3 @@ (define_int_attr sve_fmad_op [(UNSPEC_CO
(UNSPEC_COND_FMLS "fmsb")
(UNSPEC_COND_FNMLA "fnmad")
(UNSPEC_COND_FNMLS "fnmsb")])
-
-(define_int_attr commutative [(UNSPEC_COND_ADD "true")
- (UNSPEC_COND_SUB "false")
- (UNSPEC_COND_MUL "true")
- (UNSPEC_COND_DIV "false")
- (UNSPEC_COND_MIN "true")
- (UNSPEC_COND_MAX "true")])
