diff options
Diffstat (limited to 'test/codegen/arithmetic.go')
| -rw-r--r-- | test/codegen/arithmetic.go | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/test/codegen/arithmetic.go b/test/codegen/arithmetic.go index 16158b2f4b..dcbc6d3f97 100644 --- a/test/codegen/arithmetic.go +++ b/test/codegen/arithmetic.go @@ -216,14 +216,14 @@ func ConstMods(n1 uint, n2 int) (uint, int) { } // Check that divisibility checks x%c==0 are converted to MULs and rotates -func Divisible(n uint) (even, odd bool) { +func Divisible(n1 uint, n2 int) (bool, bool, bool, bool) { // amd64:"MOVQ\t[$]-6148914691236517205","IMULQ","ROLQ\t[$]63",-"DIVQ" // 386:"IMUL3L\t[$]-1431655765","ROLL\t[$]31",-"DIVQ" // arm64:"MOVD\t[$]-6148914691236517205","MUL","ROR",-"DIV" // arm:"MUL","CMP\t[$]715827882",-".*udiv" // ppc64:"MULLD","ROTL\t[$]63" // ppc64le:"MULLD","ROTL\t[$]63" - even = n%6 == 0 + evenU := n1%6 == 0 // amd64:"MOVQ\t[$]-8737931403336103397","IMULQ",-"ROLQ",-"DIVQ" // 386:"IMUL3L\t[$]678152731",-"ROLL",-"DIVQ" @@ -231,8 +231,25 @@ func Divisible(n uint) (even, odd bool) { // arm:"MUL","CMP\t[$]226050910",-".*udiv" // ppc64:"MULLD",-"ROTL" // ppc64le:"MULLD",-"ROTL" - odd = n%19 == 0 - return + oddU := n1%19 == 0 + + // amd64:"IMULQ","ADD","ROLQ\t[$]63",-"DIVQ" + // 386:"IMUL3L\t[$]-1431655765","ADDL\t[$]715827882","ROLL\t[$]31",-"DIVQ" + // arm64:"MUL","ADD\t[$]3074457345618258602","ROR",-"DIV" + // arm:"MUL","ADD\t[$]715827882",-".*udiv" + // ppc64:"MULLD","ADD","ROTL\t[$]63" + // ppc64le:"MULLD","ADD","ROTL\t[$]63" + evenS := n2%6 == 0 + + // amd64:"IMULQ","ADD",-"ROLQ",-"DIVQ" + // 386:"IMUL3L\t[$]678152731","ADDL\t[$]113025455",-"ROLL",-"DIVQ" + // arm64:"MUL","ADD\t[$]485440633518672410",-"ROR",-"DIV" + // arm:"MUL","ADD\t[$]113025455",-".*udiv" + // ppc64:"MULLD","ADD",-"ROTL" + // ppc64le:"MULLD","ADD",-"ROTL" + oddS := n2%19 == 0 + + return evenU, oddU, evenS, oddS } // Check that fix-up code is not generated for divisions where it has been proven that |