1 # RUN: not --crash llc -mtriple=aarch64-- -run-pass=legalizer %s -o - 2>&1 | FileCheck %s
3 # This is to demonstrate what kind of bugs we're missing w/o some kind
4 # of validation for LegalizerInfo: G_INTTOPTR could only be legal /
5 # could be legalized if its destination operand has a pointer type and
6 # its source - a scalar type. This is reversed in this test and the
7 # legalizer is expected to fail on it with an appropriate error
8 # message. Prior to LegalizerInfo::verify AArch64 legalizer had a
9 # subtle bug in its definition that caused it to accept the following
10 # MIR as legal. Namely, it checked that type index 0 is either s64 or
11 # p0 (in that order) and implicitly declared any type for type index 1
12 # as legal. As LegalizerInfo::verify asserts on such a definition due
13 # to type index 1 not being covered it forces to review the definition
14 # and fix the mistake: check that type index 0 is p0 and type index 1
15 # is s64 (in that order).
17 # CHECK: Bad machine code: inttoptr result type must be a pointer
18 # CHECK: Bad machine code: inttoptr source type must not be a pointer
19 # CHECK: LLVM ERROR: Found 2 machine code errors.
24 tracksRegLiveness: true
33 %1:_(s64) = G_INTTOPTR %0(p0)
35 RET_ReallyLR implicit $x0