[llvm] cbf931e - [TableGen][GlobalISel] Add GINodeEquiv for sdivrem/udivrem (#120819)

[via llvm-commits]

Author: Sergei Barannikov
Date: 2024-12-21T08:06:29+03:00
New Revision: cbf931e16f6d1ebe4c8a2f32315f21615a934f32

URL: https://github.com/llvm/llvm-project/commit/cbf931e16f6d1ebe4c8a2f32315f21615a934f32
DIFF: https://github.com/llvm/llvm-project/commit/cbf931e16f6d1ebe4c8a2f32315f21615a934f32.diff

LOG: [TableGen][GlobalISel] Add GINodeEquiv for sdivrem/udivrem (#120819)

These nodes are not currently used in DAG patterns. Their GlobalISel
equivalents are primarily useful for testing TableGen backend, as they
produce two results. (There doesn't seem to be other such nodes.)

Added: 
    

Modified: 
    llvm/include/llvm/Target/GlobalISel/SelectionDAGCompat.td
    llvm/include/llvm/Target/TargetSelectionDAG.td

Removed: 
    


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diff  --git a/llvm/include/llvm/Target/GlobalISel/SelectionDAGCompat.td b/llvm/include/llvm/Target/GlobalISel/SelectionDAGCompat.td
index 2148f5be4c41aa..c8c0eeb57099a2 100644
--- a/llvm/include/llvm/Target/GlobalISel/SelectionDAGCompat.td
+++ b/llvm/include/llvm/Target/GlobalISel/SelectionDAGCompat.td
@@ -70,6 +70,8 @@ def : GINodeEquiv<G_SDIV, sdiv>;
 def : GINodeEquiv<G_UDIV, udiv>;
 def : GINodeEquiv<G_SREM, srem>;
 def : GINodeEquiv<G_UREM, urem>;
+def : GINodeEquiv<G_SDIVREM, sdivrem>;
+def : GINodeEquiv<G_UDIVREM, udivrem>;
 def : GINodeEquiv<G_AND, and>;
 def : GINodeEquiv<G_OR, or>;
 def : GINodeEquiv<G_XOR, xor>;

diff  --git a/llvm/include/llvm/Target/TargetSelectionDAG.td b/llvm/include/llvm/Target/TargetSelectionDAG.td
index 2c58eedce1de0b..bee0a4298c786f 100644
--- a/llvm/include/llvm/Target/TargetSelectionDAG.td
+++ b/llvm/include/llvm/Target/TargetSelectionDAG.td
@@ -128,8 +128,8 @@ def SDTIntShiftDOp: SDTypeProfile<1, 3, [   // fshl, fshr
 def SDTIntSatNoShOp : SDTypeProfile<1, 2, [   // ssat with no shift
   SDTCisSameAs<0, 1>, SDTCisInt<2>
 ]>;
-def SDTIntBinHiLoOp : SDTypeProfile<2, 2, [ // mulhi, mullo, sdivrem, udivrem
-  SDTCisSameAs<0, 1>, SDTCisSameAs<0, 2>, SDTCisSameAs<0, 3>,SDTCisInt<0>
+def SDTIntBinHiLoOp : SDTypeProfile<2, 2, [ // smullohi, umullohi, sdivrem, udivrem
+  SDTCisSameAs<0, 1>, SDTCisSameAs<0, 2>, SDTCisSameAs<0, 3>, SDTCisInt<0>
 ]>;
 def SDTIntScaledBinOp : SDTypeProfile<1, 3, [  // smulfix, sdivfix, etc
   SDTCisSameAs<0, 1>, SDTCisSameAs<0, 2>, SDTCisInt<0>, SDTCisInt<3>