[X86][GlobalIsel] Support G_INTRINSIC_TRUNC/G_FCEIL/G_FFLOOR

[mahesh-attarde]

This PR adds support for C/CPP Lib Intrinsic from LangRef in GlobalIsel.
Test is added #156281

[llvmbot]

@llvm/pr-subscribers-backend-x86

Author: Mahesh-Attarde (mahesh-attarde)

Changes

This PR adds support for C/CPP Lib Intrinsic from LangRef in GlobalIsel.
Test is added #156281

---

Full diff: https://github.com/llvm/llvm-project/pull/156317.diff

1 Files Affected:

• (modified) llvm/lib/Target/X86/GISel/X86LegalizerInfo.cpp (+2-1)

diff --git a/llvm/lib/Target/X86/GISel/X86LegalizerInfo.cpp b/llvm/lib/Target/X86/GISel/X86LegalizerInfo.cpp
index 7fe58539cd4ec..c27e6075c779f 100644
--- a/llvm/lib/Target/X86/GISel/X86LegalizerInfo.cpp
+++ b/llvm/lib/Target/X86/GISel/X86LegalizerInfo.cpp
@@ -580,7 +580,8 @@ X86LegalizerInfo::X86LegalizerInfo(const X86Subtarget &STI,
       .lower();
 
   // fp intrinsics
-  getActionDefinitionsBuilder(G_INTRINSIC_ROUNDEVEN)
+  getActionDefinitionsBuilder(
+      {G_INTRINSIC_ROUNDEVEN, G_INTRINSIC_TRUNC, G_FCEIL, G_FFLOOR})
       .scalarize(0)
       .minScalar(0, LLT::scalar(32))
       .libcall();

[arsenm]

Should be tested

[e-kud]

@abhishek-kaushik22 @mahesh-attarde any difference from #156633?

[mahesh-attarde]

@abhishek-kaushik22 @mahesh-attarde any difference from #156633?

This is not rebased to test added for same use case.
I used different sandbox to fix #156633