if (DL && LHSCI->getOpcode() == Instruction::PtrToInt &&
DL->getPointerTypeSizeInBits(SrcTy) == DestTy->getIntegerBitWidth()) {
Value *RHSOp = nullptr;
- if (Constant *RHSC = dyn_cast<Constant>(ICI.getOperand(1))) {
+ if (PtrToIntOperator *RHSC = dyn_cast<PtrToIntOperator>(ICI.getOperand(1))) {
+ Value *RHSCIOp = RHSC->getOperand(0);
+ if (RHSCIOp->getType()->getPointerAddressSpace() ==
+ LHSCIOp->getType()->getPointerAddressSpace()) {
+ RHSOp = RHSC->getOperand(0);
+ // If the pointer types don't match, insert a bitcast.
+ if (LHSCIOp->getType() != RHSOp->getType())
+ RHSOp = Builder->CreateBitCast(RHSOp, LHSCIOp->getType());
+ }
+ } else if (Constant *RHSC = dyn_cast<Constant>(ICI.getOperand(1)))
RHSOp = ConstantExpr::getIntToPtr(RHSC, SrcTy);
- } else if (PtrToIntInst *RHSC = dyn_cast<PtrToIntInst>(ICI.getOperand(1))) {
- RHSOp = RHSC->getOperand(0);
- // If the pointer types don't match, insert a bitcast.
- if (LHSCIOp->getType() != RHSOp->getType())
- RHSOp = Builder->CreateBitCast(RHSOp, LHSCIOp->getType());
- }
if (RHSOp)
return new ICmpInst(ICI.getPredicate(), LHSCIOp, RHSOp);
target datalayout = "p:32:32-p1:32:32-p2:16:16"
+@global = global i8 0
+
; This shouldn't convert to getelementptr because the relationship
; between the arithmetic and the layout of allocated memory is
; entirely unknown.
ret i1 %r
}
+; These casts should not be folded away.
+; CHECK-LABEL: @test2_diff_as
+; CHECK: icmp sge i32 %i0, %i1
+define i1 @test2_diff_as(i8* %p, i8 addrspace(1)* %q) {
+ %i0 = ptrtoint i8* %p to i32
+ %i1 = ptrtoint i8 addrspace(1)* %q to i32
+ %r0 = icmp sge i32 %i0, %i1
+ ret i1 %r0
+}
+
+; These casts should not be folded away.
+; CHECK-LABEL: @test2_diff_as_global
+; CHECK: icmp sge i32 %i1
+define i1 @test2_diff_as_global(i8 addrspace(1)* %q) {
+ %i0 = ptrtoint i8* @global to i32
+ %i1 = ptrtoint i8 addrspace(1)* %q to i32
+ %r0 = icmp sge i32 %i1, %i0
+ ret i1 %r0
+}
+
; These casts should also be folded away.
; CHECK-LABEL: @test3(
; CHECK: icmp eq i8* %a, @global
-@global = global i8 0
define i1 @test3(i8* %a) {
%tmpa = ptrtoint i8* %a to i32
%r = icmp eq i32 %tmpa, ptrtoint (i8* @global to i32)