[llvm] [X86][GlobalIsel] Reland G_ISFPCLASS (PR #165848)

[via llvm-commits]

================
@@ -3,9 +3,9 @@
 ; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s -check-prefixes=X64,X64-SDAGISEL
 ; RUN: llc < %s -mtriple=i686-linux -fast-isel -fast-isel-abort=1  | FileCheck %s -check-prefixes=X86-FASTISEL
 ; RUN: llc < %s -mtriple=x86_64-linux -fast-isel -fast-isel-abort=1  | FileCheck %s -check-prefixes=X64,X64-FASTISEL
-; RUN: llc < %s -mtriple=i686-linux -global-isel -global-isel-abort=2  | FileCheck %s -check-prefixes=X86
-; RUN: llc < %s -mtriple=x86_64-linux -global-isel -global-isel-abort=2  | FileCheck %s -check-prefixes=X64,X64-GISEL
-
+; RUN: llc < %s -mtriple=x86_64-linux -global-isel -global-isel-abort=1  | FileCheck %s -check-prefixes=X64-GISEL
+; Disabling i686 global isel test due to sub_reg constraint issues.
+; llc < %s -mtriple=i686-linux -global-isel -global-isel-abort=1
----------------
mahesh-attarde wrote:

done.

https://github.com/llvm/llvm-project/pull/165848