Merge pull request #1371 from csyonghe/loop_attrib

Emit [loop] attribute to output HLSL.

2 files changed, 74 insertions, 0 deletions

diff --git a/tests/cross-compile/loop-attribs.slang b/tests/cross-compile/loop-attribs.slang
new file mode 100644
index 000000000..4336698c0
--- /dev/null
+++ b/tests/cross-compile/loop-attribs.slang
@@ -0,0 +1,19 @@
+// loop-attribs.slang
+// Test that loop attributes are correctly emitted to the resulting HLSL.
+
+//TEST:CROSS_COMPILE:-target dxil-assembly  -entry main -stage fragment -profile sm_6_0 
+
+float4 main() : SV_Target
+{
+    float sum = 0.0f;
+    
+    [loop]
+    for (int i = 0; i < 100; i++)
+        sum += float(i);
+
+    [unroll(10)]
+    for (int j = 0; j < 100; j++)
+        sum += float(j);
+
+    return float4(sum, 0, 0, 0);
+}
\ No newline at end of file
diff --git a/tests/cross-compile/loop-attribs.slang.hlsl b/tests/cross-compile/loop-attribs.slang.hlsl
new file mode 100644
index 000000000..5d53f51e0
--- /dev/null
+++ b/tests/cross-compile/loop-attribs.slang.hlsl
@@ -0,0 +1,55 @@
+#pragma pack_matrix(column_major)
+
+#line 6 "tests/cross-compile/loop-attribs.slang"
+vector<float,4> main() : SV_TARGET
+{
+    int i_0;
+    float sum_0;
+    int j_0;
+    float sum_1;
+    i_0 = int(0);
+    sum_0 = 0.00000000000000000000;
+    [loop]
+    for(;;)
+    {
+
+#line 11
+        if(i_0 < int(100))
+        {
+        }
+        else
+        {
+            break;
+        }
+        float _S1 = sum_0 + (float) i_0;
+
+#line 11
+        int _S2 = i_0 + (int) int(1);
+        i_0 = _S2;
+        sum_0 = _S1;
+    }
+    j_0 = int(0);
+    sum_1 = sum_0;
+    [unroll]
+    for(;;)
+    {
+
+#line 15
+        if(j_0 < int(100))
+        {
+        }
+        else
+        {
+            break;
+        }
+        float _S3 = sum_1 + (float) j_0;
+
+#line 15
+        int _S4 = j_0 + (int) int(1);
+        j_0 = _S4;
+        sum_1 = _S3;
+    }
+
+#line 18
+    return vector<float,4>(sum_1, (float) int(0), (float) int(0), (float) int(0));
+}
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