1 # RUN: llc -mtriple=i686-unknown-unknown -run-pass=x86-flags-copy-lowering \
2 # RUN: -print-after=x86-flags-copy-lowering %s -o - | FileCheck %s
4 # Check that $eflags is removed from live-in lists of successor blocks.
6 # CHECK-NOT: liveins: $eflags
9 define void @fun(i16 %arg, i64 %arg1, i8 %arg2, ptr %arg3, i32 %arg4) { ret void}
14 tracksRegLiveness: true
16 - { id: 0, class: gr16 }
17 - { id: 1, class: gr16 }
18 - { id: 2, class: gr16 }
19 - { id: 3, class: gr32 }
20 - { id: 4, class: gr32 }
21 - { id: 5, class: gr8 }
22 - { id: 6, class: gr32 }
23 - { id: 7, class: gr32 }
24 - { id: 8, class: gr32 }
25 - { id: 9, class: gr32 }
26 - { id: 10, class: gr32 }
27 - { id: 11, class: gr32 }
28 - { id: 12, class: gr32 }
29 - { id: 13, class: gr8 }
30 - { id: 14, class: gr32 }
31 - { id: 15, class: gr32 }
32 - { id: 16, class: gr32_abcd }
33 - { id: 17, class: gr8 }
34 - { id: 18, class: gr8 }
35 - { id: 19, class: gr32 }
36 - { id: 20, class: gr32 }
40 - { id: 0, offset: 20, size: 4, alignment: 4, isImmutable: true }
41 - { id: 1, offset: 16, size: 4, alignment: 4, isImmutable: true }
42 - { id: 2, offset: 12, size: 1, alignment: 4, isImmutable: true }
43 - { id: 3, offset: 8, size: 4, alignment: 4, isImmutable: true }
44 - { id: 4, offset: 4, size: 4, alignment: 4, isImmutable: true }
45 - { id: 5, size: 2, alignment: 4, isImmutable: true }
46 machineFunctionInfo: {}
49 %4:gr32 = MOV32rm %fixed-stack.3, 1, $noreg, 0, $noreg :: (load (s32) from %fixed-stack.3)
50 %3:gr32 = MOV32rm %fixed-stack.4, 1, $noreg, 0, $noreg :: (load (s32) from %fixed-stack.4)
51 %7:gr32 = MOV32rm %fixed-stack.0, 1, $noreg, 0, $noreg :: (load (s32) from %fixed-stack.0)
52 %6:gr32 = MOV32rm %fixed-stack.1, 1, $noreg, 0, $noreg :: (load (s32) from %fixed-stack.1)
53 %5:gr8 = MOV8rm %fixed-stack.2, 1, $noreg, 0, $noreg :: (load (s8) from %fixed-stack.2, align 4)
54 %9:gr32 = IMPLICIT_DEF
55 %11:gr32 = IMPLICIT_DEF
58 successors: %bb.2, %bb.3
60 CMP32rr %3, %9, implicit-def $eflags
61 %10:gr32 = SBB32rr %4, %11, implicit-def $eflags, implicit $eflags
62 %12:gr32 = COPY $eflags
63 %13:gr8 = SETCCr 12, implicit $eflags
64 %14:gr32 = MOVZX32rr8 killed %13
65 %15:gr32 = NEG32r %14, implicit-def dead $eflags
66 %16:gr32_abcd = MOV32r0 implicit-def dead $eflags
68 %17:gr8 = COPY %16.sub_8bit
69 JCC_1 %bb.3, 12, implicit $eflags
76 successors: %bb.4, %bb.5
79 %18:gr8 = PHI %5, %bb.2, %17, %bb.1
80 MOV8mr %6, 1, $noreg, 0, $noreg, killed %18 :: (volatile store (s8) into %ir.arg3)
81 JCC_1 %bb.5, 12, implicit $eflags
86 %19:gr32 = PHI %16, %bb.4, %15, %bb.3
88 CDQ implicit-def $eax, implicit-def $edx, implicit $eax
89 IDIV32r killed %19, implicit-def dead $eax, implicit-def $edx, implicit-def dead $eflags, implicit $eax, implicit $edx