[mlir][Math] Change regex to match fp value on different target.

Link: #58048

Reviewed By: ftynse, Mogball

Differential Revision: https://reviews.llvm.org/D134850

Author: jacquesguan

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 {{0.84[0-9]+|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, {{0.84[0-9]+|8.4[0-9]+e-01}}, 0.000000e+00, {{0.84[0-9]+|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>
@@ -467,7 +467,7 @@ func.func @sin_fold_vec() -> (vector<4xf32>) {
 }
 
 // CHECK-LABEL: @erf_fold
-// CHECK-NEXT: %[[cst:.+]] = arith.constant 0.84{{[0-9]+}} : f32
+// CHECK-NEXT: %[[cst:.+]] = arith.constant {{0.84[0-9]+|8.4[0-9]+e-01}} : f32
 // CHECK-NEXT:   return %[[cst]]
 func.func @erf_fold() -> f32 {
   %c = arith.constant 1.0 : f32
@@ -476,7 +476,7 @@ func.func @erf_fold() -> f32 {
 }
 
 // CHECK-LABEL: @erf_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, {{0.84[0-9]+|8.4[0-9]+e-01}}, 0.000000e+00, {{0.84[0-9]+|8.4[0-9]+e-01}}]> : vector<4xf32>
 // CHECK-NEXT:   return %[[cst]]
 func.func @erf_fold_vec() -> (vector<4xf32>) {
   %v1 = arith.constant dense<[0.0, 1.0, 0.0, 1.0]> : vector<4xf32>