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# RUN: llc -mtriple=x86_64-linux -run-pass=block-placement -o - %s | FileCheck %s
---
# check loop bb.7 is not merged with bb.10, bb.13
# check loop bb.9 is not merged with bb.12
# CHECK: bb.2:
# CHECK-NEXT: successors: %bb.3(0x30000000), %bb.4(0x50000000)
# CHECK: %rax = MOV64rm %r14, 1, %noreg, 0, %noreg
# CHECK-NEXT: TEST64rr %rax, %rax
# CHECK-NEXT: JE_1 %bb.3
# CHECK: bb.4:
# CHECK-NEXT: successors: %bb.5(0x30000000), %bb.10(0x50000000)
# CHECK: CMP64mi8 killed %rax, 1, %noreg, 8, %noreg, 0
# CHECK-NEXT: JNE_1 %bb.10
# CHECK: bb.5:
# CHECK-NEXT: successors: %bb.6(0x30000000), %bb.7(0x50000000)
# CHECK: %rax = MOV64rm %r14, 1, %noreg, 0, %noreg
# CHECK-NEXT: TEST64rr %rax, %rax
# CHECK-NEXT: JE_1 %bb.6
# CHECK: bb.7
# CHECK-NEXT: successors: %bb.8(0x71555555), %bb.10(0x0eaaaaab)
# CHECK: CMP64mi8 killed %rax, 1, %noreg, 8, %noreg, 0
# CHECK-NEXT: JNE_1 %bb.10
# CHECK: bb.8:
# CHECK-NEXT: successors: %bb.9(0x04000000), %bb.7(0x7c000000)
# CHECK: %rax = MOV64rm %r14, 1, %noreg, 0, %noreg
# CHECK-NEXT: TEST64rr %rax, %rax
# CHECK-NEXT: JNE_1 %bb.7
name: foo
body: |
bb.0:
successors: %bb.1(0x40000000), %bb.7(0x40000000)
TEST8ri %dl, 1, implicit-def %eflags, implicit killed %edx
JE_1 %bb.7, implicit %eflags
bb.1:
successors: %bb.16(0x80000000)
%ebp = XOR32rr undef %ebp, undef %ebp, implicit-def dead %eflags
JMP_1 %bb.16
bb.7:
successors: %bb.8(0x30000000), %bb.9(0x50000000)
%rax = MOV64rm %r14, 1, %noreg, 0, %noreg :: (load 8)
TEST64rr %rax, %rax, implicit-def %eflags
JNE_1 %bb.9, implicit killed %eflags
bb.8:
successors: %bb.16(0x80000000)
%ebp = XOR32rr undef %ebp, undef %ebp, implicit-def dead %eflags
JMP_1 %bb.16
bb.9:
successors: %bb.10(0x30000000), %bb.15(0x50000000)
CMP64mi8 killed %rax, 1, %noreg, 8, %noreg, 0, implicit-def %eflags :: (load 8)
JNE_1 %bb.15, implicit %eflags
bb.10:
successors: %bb.11(0x30000000), %bb.12(0x50000000)
%rax = MOV64rm %r14, 1, %noreg, 0, %noreg :: (load 8)
TEST64rr %rax, %rax, implicit-def %eflags
JNE_1 %bb.12, implicit %eflags
bb.11:
successors: %bb.16(0x80000000)
%ebp = XOR32rr undef %ebp, undef %ebp, implicit-def dead %eflags
JMP_1 %bb.16
bb.12:
successors: %bb.13(0x71555555), %bb.15(0x0eaaaaab)
CMP64mi8 killed %rax, 1, %noreg, 8, %noreg, 0, implicit-def %eflags :: (load 8), (load 8)
JNE_1 %bb.15, implicit %eflags
bb.13:
successors: %bb.14(0x04000000), %bb.12(0x7c000000)
%rax = MOV64rm %r14, 1, %noreg, 0, %noreg :: (load 8)
TEST64rr %rax, %rax, implicit-def %eflags
JNE_1 %bb.12, implicit %eflags
bb.14:
successors: %bb.16(0x80000000)
%ebp = XOR32rr undef %ebp, undef %ebp, implicit-def dead %eflags
JMP_1 %bb.16
bb.15:
successors: %bb.16(0x80000000)
%ebp = XOR32rr undef %ebp, undef %ebp, implicit-def dead %eflags
dead %eax = XOR32rr undef %eax, undef %eax, implicit-def dead %eflags, implicit-def %al
bb.16:
RETQ %eax
...
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