[Mlir-commits] [mlir] 338e76f - Lower complex.expm1 to standard dialect.
llvmlistbot at llvm.org
llvmlistbot at llvm.org
Wed May 25 16:11:39 PDT 2022
Author: bixia1
Date: 2022-05-25T16:11:28-07:00
New Revision: 338e76f8ee3857ef06eb13f062ad9df39f29d465
URL: https://github.com/llvm/llvm-project/commit/338e76f8ee3857ef06eb13f062ad9df39f29d465
DIFF: https://github.com/llvm/llvm-project/commit/338e76f8ee3857ef06eb13f062ad9df39f29d465.diff
LOG: Lower complex.expm1 to standard dialect.
Add a test.
Reviewed By: pifon2a
Differential Revision: https://reviews.llvm.org/D126409
Added:
Modified:
mlir/lib/Conversion/ComplexToStandard/ComplexToStandard.cpp
mlir/test/Conversion/ComplexToStandard/convert-to-standard.mlir
Removed:
################################################################################
diff --git a/mlir/lib/Conversion/ComplexToStandard/ComplexToStandard.cpp b/mlir/lib/Conversion/ComplexToStandard/ComplexToStandard.cpp
index a676e0afe9a88..e1eca6181dff9 100644
--- a/mlir/lib/Conversion/ComplexToStandard/ComplexToStandard.cpp
+++ b/mlir/lib/Conversion/ComplexToStandard/ComplexToStandard.cpp
@@ -413,6 +413,30 @@ struct ExpOpConversion : public OpConversionPattern<complex::ExpOp> {
}
};
+struct Expm1OpConversion : public OpConversionPattern<complex::Expm1Op> {
+ using OpConversionPattern<complex::Expm1Op>::OpConversionPattern;
+
+ LogicalResult
+ matchAndRewrite(complex::Expm1Op op, OpAdaptor adaptor,
+ ConversionPatternRewriter &rewriter) const override {
+ auto type = adaptor.getComplex().getType().cast<ComplexType>();
+ auto elementType = type.getElementType().cast<FloatType>();
+
+ mlir::ImplicitLocOpBuilder b(op.getLoc(), rewriter);
+ Value exp = b.create<complex::ExpOp>(adaptor.getComplex());
+
+ Value real = b.create<complex::ReOp>(elementType, exp);
+ Value one = b.create<arith::ConstantOp>(elementType,
+ b.getFloatAttr(elementType, 1));
+ Value realMinusOne = b.create<arith::SubFOp>(real, one);
+ Value imag = b.create<complex::ImOp>(elementType, exp);
+
+ rewriter.replaceOpWithNewOp<complex::CreateOp>(op, type, realMinusOne,
+ imag);
+ return success();
+ }
+};
+
struct LogOpConversion : public OpConversionPattern<complex::LogOp> {
using OpConversionPattern<complex::LogOp>::OpConversionPattern;
@@ -718,6 +742,7 @@ void mlir::populateComplexToStandardConversionPatterns(
CosOpConversion,
DivOpConversion,
ExpOpConversion,
+ Expm1OpConversion,
LogOpConversion,
Log1pOpConversion,
MulOpConversion,
diff --git a/mlir/test/Conversion/ComplexToStandard/convert-to-standard.mlir b/mlir/test/Conversion/ComplexToStandard/convert-to-standard.mlir
index 8e7098f832bb8..6f57e722b520e 100644
--- a/mlir/test/Conversion/ComplexToStandard/convert-to-standard.mlir
+++ b/mlir/test/Conversion/ComplexToStandard/convert-to-standard.mlir
@@ -190,6 +190,27 @@ func.func @complex_exp(%arg: complex<f32>) -> complex<f32> {
// CHECK: %[[RESULT:.*]] = complex.create %[[RESULT_REAL]], %[[RESULT_IMAG]] : complex<f32>
// CHECK: return %[[RESULT]] : complex<f32>
+// CHECK-LABEL: func.func @complex_expm1(
+// CHECK-SAME: %[[ARG:.*]]: complex<f32>) -> complex<f32> {
+func.func @complex_expm1(%arg: complex<f32>) -> complex<f32> {
+ %expm1 = complex.expm1 %arg: complex<f32>
+ return %expm1 : complex<f32>
+}
+// CHECK: %[[REAL_I:.*]] = complex.re %[[ARG]] : complex<f32>
+// CHECK: %[[IMAG_I:.*]] = complex.im %[[ARG]] : complex<f32>
+// CHECK: %[[EXP:.*]] = math.exp %[[REAL_I]] : f32
+// CHECK: %[[COS:.*]] = math.cos %[[IMAG_I]] : f32
+// CHECK: %[[RES_REAL:.*]] = arith.mulf %[[EXP]], %[[COS]] : f32
+// CHECK: %[[SIN:.*]] = math.sin %[[IMAG_I]] : f32
+// CHECK: %[[RES_IMAG:.*]] = arith.mulf %[[EXP]], %[[SIN]] : f32
+// CHECK: %[[RES_EXP:.*]] = complex.create %[[RES_REAL]], %[[RES_IMAG]] : complex<f32>
+// CHECK: %[[REAL:.*]] = complex.re %[[RES_EXP]] : complex<f32>
+// CHECK: %[[ONE:.*]] = arith.constant 1.000000e+00 : f32
+// CHECK: %[[REAL_M1:.*]] = arith.subf %[[REAL]], %[[ONE]] : f32
+// CHECK: %[[IMAG:.*]] = complex.im %[[RES_EXP]] : complex<f32>
+// CHECK: %[[RES:.*]] = complex.create %[[REAL_M1]], %[[IMAG]] : complex<f32>
+// CHECK: return %[[RES]] : complex<f32>
+
// CHECK-LABEL: func @complex_log
// CHECK-SAME: %[[ARG:.*]]: complex<f32>
func.func @complex_log(%arg: complex<f32>) -> complex<f32> {
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