[Mlir-commits] [mlir] [mlir][arith] Add more canonicalization and integration tests coverage (PR #92272)

[Jakub Kuderski]

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@@ -0,0 +1,43 @@
+// tests arith operations on i1 type.
+
+// RUN: mlir-opt %s --convert-scf-to-cf --convert-cf-to-llvm --convert-vector-to-llvm \
+// RUN:             --convert-func-to-llvm --convert-arith-to-llvm | \
+// RUN:   mlir-cpu-runner -e entry -entry-point-result=void \
+// RUN:                   --shared-libs=%mlir_c_runner_utils | \
+// RUN:   FileCheck %s --match-full-lines
+
+func.func @mulsiExtendedOnI1() {
+    // mulsi_extended on i1, tests for overflow bit
+    // mulsi_extended 1, 1 : i1 = (1, 0)
+    // CHECK-NEXT: 1
+    // CHECK-NEXT: 0
+    %true = arith.constant true
+    %low, %high = arith.mulsi_extended %true, %true : i1
+    vector.print %low : i1
+    vector.print %high : i1
+    return
+}
+
+func.func @mulsimuluiExtendedOverflows() {
+    // mulsi and mului extended versions, with overflow
+    // mulsi_extended -100, -100 : i8 = (16, 39); mului_extended -100, -100 : i8 = (16, 95)
+    // CHECK-NEXT:  16
+    // CHECK-NEXT:  39
+    // CHECK-NEXT:  16
+    // CHECK-NEXT:  95
+    %c-100_i8 = arith.constant -100 : i8
+    %low, %high = arith.mulsi_extended %c-100_i8, %c-100_i8 : i8
+    vector.print %low : i8
+    vector.print %high : i8
+    %low_0, %high_1 = arith.mului_extended %c-100_i8, %c-100_i8 : i8
+    vector.print %low_0 : i8
+    vector.print %high_1 : i8
+    return
+}
+
+func.func @entry() {
+    func.call @mulsiExtendedOnI1() : () -> ()
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kuhar wrote:

Shouldn't the file be called `extended_multiplication.milr` if this is the only op tested?

https://github.com/llvm/llvm-project/pull/92272