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Don't crash printing the asm for a ConstantExpr PtrToInt just because the int

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is narrower than the pointer. This testcase emits:

  .byte (((17) - 16) & 255)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54517 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky
2008-08-08 06:34:07 +00:00
parent 65ad452536
commit d6227385fc
2 changed files with 12 additions and 4 deletions
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7
lib/CodeGen/AsmPrinter.cpp
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@@ -821,12 +821,13 @@ void AsmPrinter::EmitConstantValueOnly(const Constant *CV) {
// We can emit the pointer value into this slot if the slot is an
// integer slot greater or equal to the size of the pointer.
if (Ty->isInteger() &&
TD->getABITypeSize(Ty) >= TD->getABITypeSize(Op->getType()))
if (TD->getABITypeSize(Ty) >= TD->getABITypeSize(Op->getType()))
return EmitConstantValueOnly(Op);
assert(0 && "FIXME: Don't yet support this kind of constant cast expr");
O << "((";
EmitConstantValueOnly(Op);
APInt ptrMask = APInt::getAllOnesValue(TD->getABITypeSizeInBits(Ty));
O << ") & " << ptrMask.toStringUnsigned() << ')';
break;
}
case Instruction::Add:

7
test/CodeGen/Generic/2008-08-07-PtrToInt-SmallerInt.ll Normal file
View File

@@ -0,0 +1,7 @@
; RUN: llvm-as < %s | llc
; PR2603
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32"
target triple = "i386-pc-linux-gnu"
%struct.A = type { i8 }
%struct.B = type { i8, [1 x i8] }
@Foo = constant %struct.A { i8 ptrtoint (i8* getelementptr ([1 x i8]* inttoptr (i32 17 to [1 x i8]*), i32 0, i32 -16) to i8) } ; <%struct.A*> [#uses=0]