Files
clang-p2996/llvm/test/CodeGen/MIR/X86/unknown-named-machine-basic-block.mir
Puyan Lotfi 43e94b15ea Followup on Proposal to move MIR physical register namespace to '$' sigil.
Discussed here:

http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html

In preparation for adding support for named vregs we are changing the sigil for
physical registers in MIR to '$' from '%'. This will prevent name clashes of
named physical register with named vregs.

llvm-svn: 323922
2018-01-31 22:04:26 +00:00

36 lines
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# RUN: not llc -march=x86-64 -run-pass none -o /dev/null %s 2>&1 | FileCheck %s
# This test ensures that an error is reported when an unknown named machine
# basic block is encountered.
--- |
define i32 @foo(i32* %p) {
entry:
%a = load i32, i32* %p
%0 = icmp sle i32 %a, 10
br i1 %0, label %less, label %exit
less:
ret i32 0
exit:
ret i32 %a
}
...
---
name: foo
body: |
bb.0.entry:
$eax = MOV32rm $rdi, 1, _, 0, _
CMP32ri8 $eax, 10, implicit-def $eflags
; CHECK: [[@LINE+1]]:10: the name of machine basic block #2 isn't 'hit'
JG_1 %bb.2.hit, implicit $eflags
bb.1.less:
$eax = MOV32r0 implicit-def $eflags
bb.2.exit:
RETQ $eax
...