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llvm-mirror/test/Verifier/test_copy.mir
Aditya Nandakumar dbed654493 [GISel]: Verify COPIES involving generic registers.
Add verification for copies involving generic registers if they are
compatible - ie if it is a generic copy, then the types are the
same, and if a COPY b/w generic and target virtual register, then
the sizes should be the same. Only checks if there are no sub registers
involved for now.

https://reviews.llvm.org/D37775

llvm-svn: 324696
2018-02-09 01:27:23 +00:00

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#RUN: not llc -o - -global-isel -run-pass=none -verify-machineinstrs %s 2>&1 | FileCheck %s
# REQUIRES: global-isel, aarch64-registered-target
--- |
; ModuleID = 'test.ll'
source_filename = "test.ll"
target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
target triple = "aarch64-unknown-unknown"
define i32 @test_copy(i32 %argc) {
ret i32 0
}
define i32 @test_copy_type_mismatch(i32 %argc) {
ret i32 0
}
...
---
name: test_copy
legalized: true
regBankSelected: false
selected: false
tracksRegLiveness: true
registers:
- { id: 0, class: _, preferred-register: '' }
liveins:
body: |
bb.0:
liveins: $w0
; This test is used to catch verifier errors with copys having mismatching sizes
; CHECK: Bad machine code: Copy Instruction is illegal with mismatching sizes
%0(s8) = COPY $w0
...