[llvm] [X86] Lower mathlib call ldexp into scalef when avx512 is enabled (PR #166839)

[Simon Pilgrim via llvm-commits]

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@@ -2101,6 +2101,11 @@ X86TargetLowering::X86TargetLowering(const X86TargetMachine &TM,
     // These operations are handled on non-VLX by artificially widening in
     // isel patterns.
 
+    for (MVT VT : {MVT::f16, MVT::f32, MVT::f64, MVT::v8f16, MVT::v4f32,
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RKSimon wrote:

All you need to do is move this about 3 lines up - above the " These operations are handled on non-VLX by artificially widening in isel patterns" comment - as we're not bothering with isel patterns - no need for a new comment.

https://github.com/llvm/llvm-project/pull/166839