llvm-project/llvm/test/CodeGen/MIR/X86/successor-basic-blocks-weig...

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# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s | FileCheck %s
# This test ensures that the MIR parser parses basic block successors and
# weights correctly.
--- |
define i32 @foo(i32 %a) {
entry:
%0 = icmp sle i32 %a, 10
br i1 %0, label %less, label %exit
less:
ret i32 0
exit:
ret i32 %a
}
...
---
name: foo
body:
# CHECK: name: entry
# CHECK: successors: [ '%bb.1.less', '%bb.2.exit' ]
# CHECK-NEXT: weights: [ 16, 32 ]
# CHECK: name: less
- id: 0
name: entry
successors: [ '%bb.1.less', '%bb.2.exit' ]
weights: [ 16, 32 ]
liveins: [ '%edi' ]
instructions:
- 'CMP32ri8 %edi, 10, implicit-def %eflags'
- 'JG_1 %bb.2.exit, implicit killed %eflags'
- id: 1
name: less
instructions:
- '%eax = MOV32r0 implicit-def dead %eflags'
- 'RETQ killed %eax'
- id: 2
name: exit
liveins: [ '%edi' ]
instructions:
- '%eax = COPY killed %edi'
- 'RETQ killed %eax'
...