1 # RUN: not llc -mtriple=aarch64-- -run-pass=legalizer %s -o - 2>&1 | FileCheck %s
4 # This is to demonstrate what kind of bugs we're missing w/o some kind
5 # of validation for LegalizerInfo: G_INTTOPTR could only be legal /
6 # could be legalized if its destination operand has a pointer type and
7 # its source - a scalar type. This is reversed in this test and the
8 # legalizer is expected to fail on it with an appropriate error
9 # message. Prior to LegalizerInfo::verify AArch64 legalizer had a
10 # subtle bug in its definition that caused it to accept the following
11 # MIR as legal. Namely, it checked that type index 0 is either s64 or
12 # p0 (in that order) and implicitly declared any type for type index 1
13 # as legal. As LegalizerInfo::verify asserts on such a definition due
14 # to type index 1 not being covered it forces to review the definition
15 # and fix the mistake: check that type index 0 is p0 and type index 1
16 # is s64 (in that order).
18 # CHECK: Bad machine code: inttoptr result type must be a pointer
19 # CHECK: Bad machine code: inttoptr source type must not be a pointer
20 # CHECK: LLVM ERROR: Found 2 machine code errors.
25 tracksRegLiveness: true
34 %1:_(s64) = G_INTTOPTR %0(p0)
36 RET_ReallyLR implicit $x0