llvm
diff --git a/‎llvm/lib/Target/X86/X86ISelLowering.cpp
Copy file name to clipboardExpand all lines: llvm/lib/Target/X86/X86ISelLowering.cpp
+7Lines changed: 7 additions & 0 deletions b/‎llvm/lib/Target/X86/X86ISelLowering.cpp
Copy file name to clipboardExpand all lines: llvm/lib/Target/X86/X86ISelLowering.cpp
+7Lines changed: 7 additions & 0 deletions
diff --git a/‎llvm/lib/Target/X86/X86ISelLowering.h
Copy file name to clipboardExpand all lines: llvm/lib/Target/X86/X86ISelLowering.h
+2Lines changed: 2 additions & 0 deletions b/‎llvm/lib/Target/X86/X86ISelLowering.h
Copy file name to clipboardExpand all lines: llvm/lib/Target/X86/X86ISelLowering.h
+2Lines changed: 2 additions & 0 deletions
diff --git a/‎llvm/lib/Target/X86/X86InstrCompiler.td
Copy file name to clipboardExpand all lines: llvm/lib/Target/X86/X86InstrCompiler.td
+7Lines changed: 7 additions & 0 deletions b/‎llvm/lib/Target/X86/X86InstrCompiler.td
Copy file name to clipboardExpand all lines: llvm/lib/Target/X86/X86InstrCompiler.td
+7Lines changed: 7 additions & 0 deletions
@@ -32070,6 +32070,13 @@ X86TargetLowering::shouldExpandAtomicRMWInIR(AtomicRMWInst *AI) const {
   }
 }
 
+TargetLowering::AtomicExpansionKind
+X86TargetLowering::shouldCastAtomicLoadInIR(LoadInst *LI) const {
+  if (LI->getType()->getScalarType()->isFloatingPointTy())
+    return AtomicExpansionKind::CastToInteger;
+  return AtomicExpansionKind::None;
+}
+
 LoadInst *
 X86TargetLowering::lowerIdempotentRMWIntoFencedLoad(AtomicRMWInst *AI) const {
   unsigned NativeWidth = Subtarget.is64Bit() ? 64 : 32;
 
@@ -1838,6 +1838,8 @@ namespace llvm {
     shouldExpandAtomicRMWInIR(AtomicRMWInst *AI) const override;
     TargetLoweringBase::AtomicExpansionKind
     shouldExpandLogicAtomicRMWInIR(AtomicRMWInst *AI) const;
+    TargetLoweringBase::AtomicExpansionKind
+    shouldCastAtomicLoadInIR(LoadInst *LI) const override;
     void emitBitTestAtomicRMWIntrinsic(AtomicRMWInst *AI) const override;
     void emitCmpArithAtomicRMWIntrinsic(AtomicRMWInst *AI) const override;
 
 
@@ -1204,6 +1204,13 @@ def : Pat<(i16 (atomic_load_nonext_16 addr:$src)), (MOV16rm addr:$src)>;
 def : Pat<(i32 (atomic_load_nonext_32 addr:$src)), (MOV32rm addr:$src)>;
 def : Pat<(i64 (atomic_load_nonext_64 addr:$src)), (MOV64rm addr:$src)>;
 
+def : Pat<(v4i32 (scalar_to_vector (i32 (zext (i16 (atomic_load_16 addr:$src)))))),
+           (MOVDI2PDIrm addr:$src)>;   // load atomic <2 x i8>
+def : Pat<(v4i32 (scalar_to_vector (i32 (atomic_load_32 addr:$src)))),
+           (MOVDI2PDIrm addr:$src)>;   // load atomic <2 x i16>
+def : Pat<(v2i64 (scalar_to_vector (i64 (atomic_load_64 addr:$src)))),
+           (MOV64toPQIrm  addr:$src)>; // load atomic <2 x i32,float>
+
 // Floating point loads/stores.
 def : Pat<(atomic_store_32 (i32 (bitconvert (f32 FR32:$src))), addr:$dst),
           (MOVSSmr addr:$dst, FR32:$src)>, Requires<[UseSSE1]>;
Original file line number	Diff line number	Diff line change
`@@ -32070,6 +32070,13 @@ X86TargetLowering::shouldExpandAtomicRMWInIR(AtomicRMWInst *AI) const {`
`32070`	`32070`	`}`
`32071`	`32071`	`}`
`32072`	`32072`
	`32073`	`+TargetLowering::AtomicExpansionKind`
	`32074`	`+X86TargetLowering::shouldCastAtomicLoadInIR(LoadInst *LI) const {`
	`32075`	`+ if (LI->getType()->getScalarType()->isFloatingPointTy())`
	`32076`	`+ return AtomicExpansionKind::CastToInteger;`
	`32077`	`+ return AtomicExpansionKind::None;`
	`32078`	`+}`
	`32079`	`+`
`32073`	`32080`	`LoadInst *`
`32074`	`32081`	`X86TargetLowering::lowerIdempotentRMWIntoFencedLoad(AtomicRMWInst *AI) const {`
`32075`	`32082`	`unsigned NativeWidth = Subtarget.is64Bit() ? 64 : 32;`