[PATCH] D45572: [X86] Replace action Promote with Custom for operation ISD::SINT_TO_FP

[Alexander Ivchenko via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL330711: [X86] Replace action Promote with Expand for operation ISD::SINT_TO_FP (authored by aivchenk, committed by ).

Repository:
  rL LLVM

https://reviews.llvm.org/D45572

Files:
  llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
  llvm/trunk/test/CodeGen/X86/sitofp.ll


Index: llvm/trunk/test/CodeGen/X86/sitofp.ll
===================================================================
--- llvm/trunk/test/CodeGen/X86/sitofp.ll
+++ llvm/trunk/test/CodeGen/X86/sitofp.ll
@@ -0,0 +1,21 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s | FileCheck %s
+
+target triple = "i386-unknown-linux-gnu"
+
+define double @foo(i16 %a) #0 {
+; CHECK-LABEL: foo:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    subl $12, %esp
+; CHECK-NEXT:    .cfi_def_cfa_offset 16
+; CHECK-NEXT:    movzwl {{[0-9]+}}(%esp), %eax
+; CHECK-NEXT:    movl %eax, (%esp)
+; CHECK-NEXT:    calll __floatsidf
+; CHECK-NEXT:    addl $12, %esp
+; CHECK-NEXT:    retl
+  %conv = zext i16 %a to i32
+  %conv1 = sitofp i32 %conv to double
+  ret double %conv1
+}
+
+attributes #0 = { "use-soft-float"="true" }
Index: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
===================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
@@ -216,6 +216,8 @@
     // We have an algorithm for SSE2, and we turn this into a 64-bit
     // FILD or VCVTUSI2SS/SD for other targets.
     setOperationAction(ISD::UINT_TO_FP     , MVT::i32  , Custom);
+  } else {
+    setOperationAction(ISD::UINT_TO_FP     , MVT::i32  , Expand);
   }
 
   // Promote i1/i8 SINT_TO_FP to larger SINT_TO_FP's, as X86 doesn't have
@@ -235,7 +237,7 @@
     }
   } else {
     setOperationAction(ISD::SINT_TO_FP     , MVT::i16  , Promote);
-    setOperationAction(ISD::SINT_TO_FP     , MVT::i32  , Promote);
+    setOperationAction(ISD::SINT_TO_FP     , MVT::i32  , Expand);
   }
 
   // Promote i1/i8 FP_TO_SINT to larger FP_TO_SINTS's, as X86 doesn't have


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