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llvm-mirror/test/Analysis/Lint/noop-cast-expr-no-pointer.ll
Mikael Holmen 61a1a08d08 [Lint] Avoid failed assertion by fetching the proper pointer type
Summary:
When checking if a constant expression is a noop cast we fetched the
IntPtrType by doing DL->getIntPtrType(V->getType())). However, there can
be cases where V doesn't return a pointer, and then getIntPtrType()
triggers an assertion.

Now we pass DataLayout to isNoopCast so the method itself can determine
what the IntPtrType is.

Reviewers: arsenm

Reviewed By: arsenm

Subscribers: wdng, llvm-commits

Differential Revision: https://reviews.llvm.org/D37894

llvm-svn: 314763
2017-10-03 06:03:49 +00:00

24 lines
560 B
LLVM

; RUN: opt -lint < %s
; lint shouldn't crash on any of the below functions
@g_1 = external global [3 x i32]
@g_2 = external global [2 x i32]
define void @test1() {
entry:
tail call void @f1(i16 zext (i1 icmp eq (i32* getelementptr inbounds ([2 x i32], [2 x i32]* @g_2, i64 0, i64 0), i32* getelementptr inbounds ([3 x i32], [3 x i32]* @g_1, i64 0, i64 1)) to i16))
ret void
}
declare void @f1(i16)
define void @test2() {
tail call void inttoptr (i64 sext (i32 ptrtoint (void ()* @f2 to i32) to i64) to void ()*)()
ret void
}
declare void @f2()