[llvm] [DXIL] Add lowerings for cosine and floor (PR #86173)

[S. Bharadwaj Yadavalli via llvm-commits]

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@@ -0,0 +1,20 @@
+; RUN: opt -S -dxil-op-lower < %s | FileCheck %s
+
+; Make sure dxil operation function calls for floor are generated for float and half.
+
+define noundef float @floor_float(float noundef %a) #0 {
+entry:
+; CHECK:call float @dx.op.unary.f32(i32 27, float %{{.*}})
+  %elt.floor = call float @llvm.floor.f32(float %a)
+  ret float %elt.floor
+}
+
+define noundef half @floor_half(half noundef %a) #0 {
+entry:
+; CHECK:call half @dx.op.unary.f16(i32 27, half %{{.*}})
+  %elt.floor = call half @llvm.floor.f16(half %a)
+  ret half %elt.floor
+}
+
+declare half @llvm.floor.f16(half)
+declare float @llvm.floor.f32(float)
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bharadwajy wrote:

Consider deleting.

https://github.com/llvm/llvm-project/pull/86173