llvm-project/llvm/test/CodeGen/MIR/X86/successor-basic-blocks-weights.mir
Matthias Braun 538859cca3 llc: Add support for -run-pass none
This does not schedule any passes besides the ones necessary to
construct and print the machine function. This is useful to test .mir
file reading and printing.

Differential Revision: http://reviews.llvm.org/D22432

llvm-svn: 275664
2016-07-16 02:24:59 +00:00

43 lines
863 B
YAML

# RUN: llc -march=x86-64 -run-pass none -o - %s | FileCheck %s
# This test ensures that the MIR parser parses basic block successors and
# probabilities 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-LABEL: bb.0.entry:
; CHECK: successors: %bb.1.less({{[0-9a-fx/= ]+}}33.00%), %bb.2.exit({{[0-9a-fx/= ]+}}67.00%)
; CHECK-LABEL: bb.1.less:
bb.0.entry:
successors: %bb.1.less (33), %bb.2.exit(67)
liveins: %edi
CMP32ri8 %edi, 10, implicit-def %eflags
JG_1 %bb.2.exit, implicit killed %eflags
bb.1.less:
%eax = MOV32r0 implicit-def dead %eflags
RETQ killed %eax
bb.2.exit:
liveins: %edi
%eax = COPY killed %edi
RETQ killed %eax
...