verify-regops.mir
1.63 KB
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# RUN: not --crash llc -march=x86 -o - %s -run-pass=none -verify-machineinstrs \
# RUN: 2>&1 | FileCheck %s
# REQUIRES: x86-registered-target
#
# Check that MachineVerifier catches corrupt operands where MO->isReg()
# returns true, but the descriptor says it should be an OPERAND_IMMEDIATE or
# OPERAND_PCREL. Conversely, if MO->isReg() (and MO->isFI()) returns false,
# check that not an OPERAND_REGISTER is expected.
# CHECK-LABEL: fun
# CHECK: *** Bad machine code: Expected a register operand. ***
# CHECK: - instruction: %1:gr32 = XOR32rm -1, %fixed-stack.1, 1, $noreg, 0, $noreg, implicit-def dead $eflags :: (load 4 from %fixed-stack.1, align 8)
# CHECK: - operand 1: -1
# CHECK: *** Bad machine code: Expected a non-register operand. ***
# CHECK: - instruction: %2:gr32 = OR32ri %1:gr32(tied-def 0), %0:gr32, implicit-def dead $eflags
# CHECK: - operand 2: %0:gr32
name: fun
tracksRegLiveness: true
fixedStack:
- { id: 1, offset: 8, size: 4, alignment: 8, isImmutable: true }
- { id: 3, size: 4, alignment: 16, isImmutable: true }
body: |
bb.0:
%0:gr32 = MOV32rm %fixed-stack.3, 1, $noreg, 0, $noreg :: (load 4 from %fixed-stack.3, align 16)
; Was: %1:gr32 = XOR32rm %0, %fixed-stack.1, 1, $noreg, 0, $noreg, implicit-def dead $eflags :: (load 4 from %fixed-stack.1, align 8)
%1:gr32 = XOR32rm -1, %fixed-stack.1, 1, $noreg, 0, $noreg, implicit-def dead $eflags :: (load 4 from %fixed-stack.1, align 8)
; Was: %2:gr32 = OR32ri %1, -256, implicit-def dead $eflags
%2:gr32 = OR32ri %1, %0, implicit-def dead $eflags
%3:gr32 = MOV32ri -1
$eax = COPY %2
$edx = COPY %3
RET 0, $eax, $edx
...