[llvm] X86: Support FCANONICALIZE on f64/f80 for i686 with SSE2 or AVX (PR #123917)

[Phoebe Wang via llvm-commits]

================
@@ -1,6 +1,8 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --default-march x86_64-unknown-linux-gnu --version 5
 ; RUN: llc -mtriple=i686-- < %s | FileCheck %s -check-prefixes=X87
-; RUN: llc -mattr=+sse2 -mtriple=x86_64 < %s | FileCheck %s -check-prefixes=SSE,SSE2
+; RUN: llc -mattr=+sse2 -mtriple=i686-- < %s | FileCheck %s -check-prefixes=SSE686
+; RUN: llc -mattr=+avx -mtriple=i686-- < %s | FileCheck %s -check-prefixes=AVX686
----------------
phoebewang wrote:

X86-SSE
X86-AVX

https://github.com/llvm/llvm-project/pull/123917