[llvm] [CodeGen] Enhance inline asm constraint diagnostics (PR #101354)

[Eli Friedman via llvm-commits]

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@@ -2,7 +2,7 @@
 ; RUN: not llc -o /dev/null %s 2>&1 | FileCheck %s
 target triple = "x86_64-unknown-linux-gnu"
 
-; CHECK: error: couldn't allocate input reg for constraint 'r'
+; CHECK: error: couldn't allocate input reg for constraint 'r': couldn't allocate for type v8i16
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efriedma-quic wrote:

Maybe we can be more specific?  Something like "expected an integer, found v8i16"?

https://github.com/llvm/llvm-project/pull/101354