[Mlir-commits] [mlir] [mlir][arith] Add truncation and extension regressions (PR #98182)

Jacob Yu llvmlistbot at llvm.org
Tue Jul 9 09:04:22 PDT 2024


https://github.com/pingshiyu created https://github.com/llvm/llvm-project/pull/98182

Trunc/ext operations regression tests, from the original larger PR that has been broken down: https://github.com/llvm/llvm-project/pull/92272

>From c8d0a95bb8b8d800d67e36ef14f13c1c3c0f6aea Mon Sep 17 00:00:00 2001
From: pingshiyu <pingshiyu at gmail.com>
Date: Tue, 9 Jul 2024 16:20:04 +0100
Subject: [PATCH 1/3] added truncation and extension tests in new format

---
 .../Dialect/Arith/CPU/trunc-ext.mlir          | 94 +++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 mlir/test/Integration/Dialect/Arith/CPU/trunc-ext.mlir

diff --git a/mlir/test/Integration/Dialect/Arith/CPU/trunc-ext.mlir b/mlir/test/Integration/Dialect/Arith/CPU/trunc-ext.mlir
new file mode 100644
index 0000000000000..ada6011c880ad
--- /dev/null
+++ b/mlir/test/Integration/Dialect/Arith/CPU/trunc-ext.mlir
@@ -0,0 +1,94 @@
+// Tests arith truncation and extension operations.
+// These tests are intended to be target agnostic: they should yield the same results 
+// regardless of the target platform.
+
+// 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 @extsi_i1_i16(%v1 : i1) {
+    vector.print str "@extsi_i1_i16\n"
+    %0 = arith.extsi %v1 : i1 to i16
+    vector.print %0 : i16
+    return
+}
+
+func.func @extui_i1_i64(%v1 : i1) {
+    vector.print str "@extui_i1_i64\n"
+    %0 = arith.extui %v1 : i1 to i64
+    vector.print %0 : i64
+    return
+}
+
+func.func @trunci_i16_i8(%v1 : i16) {
+    vector.print str "@trunci_i16_i8\n"
+    %0 = arith.trunci %v1 : i16 to i8
+    vector.print %0 : i8
+    return
+}
+
+func.func @extsi() {
+    // ------------------------------------------------
+    // Test i1
+    // ------------------------------------------------
+    %true = arith.constant -1 : i1
+
+    // extsi on 1 : i1
+    // extsi(1: i1) = -1 : i16
+    // CHECK-LABEL: @extsi_i1_i16
+    // CHECK-NEXT:  -1
+    func.call @extsi_i1_i16(%true) : (i1) -> ()
+
+    // ------------------------------------------------
+    // TODO: Test i8, i16 etc..
+    // ------------------------------------------------
+
+    return
+}
+
+func.func @extui() {
+    // ------------------------------------------------
+    // Test i1
+    // ------------------------------------------------
+    %true = arith.constant true
+
+    // extui should extend i1 with 0 bits not 1s
+    // extui(1 : i1) = 1 : i64
+    // CHECK-LABEL: @extui_i1_i64
+    // CHECK-NEXT:  1
+    func.call @extui_i1_i64(%true) : (i1) -> ()
+
+    // ------------------------------------------------
+    // TODO: Test i8, i16 etc..
+    // ------------------------------------------------
+
+    return
+}
+
+func.func @trunci() {
+    // ------------------------------------------------
+    // Test i16
+    // ------------------------------------------------
+
+    // trunci on 20194 : i16
+    // trunci(20194 : i16) = -30 : i8
+    // CHECK-LABEL: @trunci_i16_i8
+    // CHECK-NEXT:  -30
+    %c20194 = arith.constant 20194 : i16
+    func.call @trunci_i16_i8(%c20194) : (i16) -> ()
+
+    // ------------------------------------------------
+    // TODO: Test i1, i8 etc..
+    // ------------------------------------------------
+
+    return
+}
+
+func.func @entry() {
+    func.call @extsi() : () -> ()
+    func.call @extui() : () -> ()
+    func.call @trunci() : () -> ()
+    return
+}

>From 9d63572e6834e43d71d4e841eae9e4193357ec01 Mon Sep 17 00:00:00 2001
From: pingshiyu <pingshiyu at gmail.com>
Date: Tue, 9 Jul 2024 16:20:20 +0100
Subject: [PATCH 2/3] removed unneeded comment

---
 mlir/test/Integration/Dialect/Arith/CPU/trunc-ext.mlir | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/mlir/test/Integration/Dialect/Arith/CPU/trunc-ext.mlir b/mlir/test/Integration/Dialect/Arith/CPU/trunc-ext.mlir
index ada6011c880ad..5783a549c69d2 100644
--- a/mlir/test/Integration/Dialect/Arith/CPU/trunc-ext.mlir
+++ b/mlir/test/Integration/Dialect/Arith/CPU/trunc-ext.mlir
@@ -1,7 +1,3 @@
-// Tests arith truncation and extension operations.
-// These tests are intended to be target agnostic: they should yield the same results 
-// regardless of the target platform.
-
 // 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 \

>From 93d5478e8d1abbeab36da60b34c2d21cb08ab09c Mon Sep 17 00:00:00 2001
From: pingshiyu <pingshiyu at gmail.com>
Date: Tue, 9 Jul 2024 16:23:53 +0100
Subject: [PATCH 3/3] todos more descriptive

---
 .../Integration/Dialect/Arith/CPU/trunc-ext.mlir     | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/mlir/test/Integration/Dialect/Arith/CPU/trunc-ext.mlir b/mlir/test/Integration/Dialect/Arith/CPU/trunc-ext.mlir
index 5783a549c69d2..4c27f2bf7b318 100644
--- a/mlir/test/Integration/Dialect/Arith/CPU/trunc-ext.mlir
+++ b/mlir/test/Integration/Dialect/Arith/CPU/trunc-ext.mlir
@@ -27,7 +27,7 @@ func.func @trunci_i16_i8(%v1 : i16) {
 
 func.func @extsi() {
     // ------------------------------------------------
-    // Test i1
+    // Test extending from i1
     // ------------------------------------------------
     %true = arith.constant -1 : i1
 
@@ -38,7 +38,7 @@ func.func @extsi() {
     func.call @extsi_i1_i16(%true) : (i1) -> ()
 
     // ------------------------------------------------
-    // TODO: Test i8, i16 etc..
+    // TODO: Test extension from i8, i16 etc..
     // ------------------------------------------------
 
     return
@@ -46,7 +46,7 @@ func.func @extsi() {
 
 func.func @extui() {
     // ------------------------------------------------
-    // Test i1
+    // Test extending from i1
     // ------------------------------------------------
     %true = arith.constant true
 
@@ -57,7 +57,7 @@ func.func @extui() {
     func.call @extui_i1_i64(%true) : (i1) -> ()
 
     // ------------------------------------------------
-    // TODO: Test i8, i16 etc..
+    // TODO: Test extension from i8, i16 etc..
     // ------------------------------------------------
 
     return
@@ -65,7 +65,7 @@ func.func @extui() {
 
 func.func @trunci() {
     // ------------------------------------------------
-    // Test i16
+    // Test truncating from i16
     // ------------------------------------------------
 
     // trunci on 20194 : i16
@@ -76,7 +76,7 @@ func.func @trunci() {
     func.call @trunci_i16_i8(%c20194) : (i16) -> ()
 
     // ------------------------------------------------
-    // TODO: Test i1, i8 etc..
+    // TODO: Test truncation of i1, i8 etc..
     // ------------------------------------------------
 
     return



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