[Mlir-commits] [mlir] [mlir][arith] doc updates for ub semantics, and int representations (PR #72932)
Jakub Kuderski
llvmlistbot at llvm.org
Mon Nov 20 21:34:16 PST 2023
================
@@ -723,10 +735,13 @@ def Arith_ShRUIOp : Arith_TotalIntBinaryOp<"shrui"> {
def Arith_ShRSIOp : Arith_TotalIntBinaryOp<"shrsi"> {
let summary = "signed integer right-shift";
let description = [{
- The `shrsi` operation shifts an integer value to the right by a variable
- amount. The integer is interpreted as signed. The high order bits in the
- output are filled with copies of the most-significant bit of the shifted
- value (which means that the sign of the value is preserved).
+ The `shrsi` operation shifts an integer value of the first operand to the right
+ by the value of the second operand. The first operand is interpreted as signed,
+ and the second operand is interpreter as unsigned. The high order bits in the
+ output are filled with copies of the most-significant bit of the shifted value
+ (which means that the sign of the value is preserved). If the value of the second
+ operand is greater than the number of bits in the first operand, then the
----------------
kuhar wrote:
Same here
https://github.com/llvm/llvm-project/pull/72932
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