[clang] [llvm] [DXIL] `exp`, `any`, `lerp`, & `rcp` Intrinsic Lowering (PR #84526)

[Justin Bogner via cfe-commits]

================
@@ -0,0 +1,133 @@
+; RUN: opt -S -dxil-op-lower < %s | FileCheck %s
+
+; Make sure dxil operation function calls for any are generated for float and half.
+
+
+target datalayout = "e-m:e-p:32:32-i1:32-i8:8-i16:16-i32:32-i64:64-f16:16-f32:32-f64:64-n8:16:32:64"
+target triple = "dxil-pc-shadermodel6.7-library"
+
+
+; CHECK:icmp ne i1 %{{.*}}, false
+; Function Attrs: noinline nounwind optnone
+define noundef i1 @any_bool(i1 noundef %p0) #0 {
+entry:
+  %p0.addr = alloca i8, align 1
+  %frombool = zext i1 %p0 to i8
+  store i8 %frombool, ptr %p0.addr, align 1
+  %0 = load i8, ptr %p0.addr, align 1
+  %tobool = trunc i8 %0 to i1
+  %dx.any = call i1 @llvm.dx.any.i1(i1 %tobool)
+  ret i1 %dx.any
+}
+
+; Function Attrs: nocallback nofree nosync nounwind willreturn
+declare i1 @llvm.dx.any.i1(i1) #1
----------------
bogner wrote:

It doesn't really matter, but I find it a bit tidier to put all of these function declarations together at the end.

https://github.com/llvm/llvm-project/pull/84526