`Dialect/Math/canonicalize.mlir` is failing on macOS

[AlexDenisov]

Not sure if this is macOS specific, but the test fails due to floating point representation.
The test case around @sin_fold

func.func @sin_fold() -> f32 {
  %c = arith.constant 1.0 : f32
  %r = math.sin %c : f32
  return %r : f32
}

expects 0.84{{[0-9]+}} but canonicalizer produces 8.414710e-01.

The following diff fixes the test for me, but I'm not sure if it breaks something on other platforms:

diff --git a/mlir/test/Dialect/Math/canonicalize.mlir b/mlir/test/Dialect/Math/canonicalize.mlir
index d7c4bb712992..1b9eac808f0b 100644
--- a/mlir/test/Dialect/Math/canonicalize.mlir
+++ b/mlir/test/Dialect/Math/canonicalize.mlir
@@ -449,7 +449,7 @@ func.func @trunc_fold_vec() -> (vector<4xf32>) {
 }

 // CHECK-LABEL: @sin_fold
-// CHECK-NEXT: %[[cst:.+]] = arith.constant 0.84{{[0-9]+}} : f32
+// CHECK-NEXT: %[[cst:.+]] = arith.constant 8.4{{[0-9]+}}e-01 : f32
 // CHECK-NEXT:   return %[[cst]]
 func.func @sin_fold() -> f32 {
   %c = arith.constant 1.0 : f32
@@ -458,7 +458,7 @@ func.func @sin_fold() -> f32 {
 }

 // CHECK-LABEL: @sin_fold_vec
-// CHECK-NEXT: %[[cst:.+]] = arith.constant dense<[0.000000e+00, 0.84{{[0-9]+}}, 0.000000e+00, 0.84{{[0-9]+}}]> : vector<4xf32>
+// CHECK-NEXT: %[[cst:.+]] = arith.constant dense<[0.000000e+00, 8.4{{[0-9]+}}e-01, 0.000000e+00, 8.4{{[0-9]+}}e-01]> : vector<4xf32>
 // CHECK-NEXT:   return %[[cst]]
 func.func @sin_fold_vec() -> (vector<4xf32>) {
   %v1 = arith.constant dense<[0.0, 1.0, 0.0, 1.0]> : vector<4xf32>

[AlexDenisov]

Not directly related to CIR, so closing this one.