1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109
|
# RUN: llc -march=x86-64 -run-pass none -o - %s | FileCheck %s
--- |
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
}
define i32 @bar(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
tracksRegLiveness: true
liveins:
- { reg: '$edi' }
# CHECK-LABEL: name: foo
# CHECK: body: |
# CHECK-NEXT: bb.0.entry:
# CHECK-NEXT: successors: %bb.1(0x40000000), %bb.2(0x40000000)
# CHECK-NEXT: liveins: $edi
# CHECK: CMP32ri8 $edi, 10, implicit-def $eflags
# CHECK-NEXT: JCC_1 %bb.2, 15, implicit killed $eflags
# CHECK: bb.1.less:
# CHECK-NEXT: $eax = MOV32r0 implicit-def dead $eflags
# CHECK-NEXT: RET64 killed $eax
# CHECK: bb.2.exit:
# CHECK-NEXT: liveins: $edi
# CHECK: $eax = COPY killed $edi
# CHECK-NEXT: RET64 killed $eax
body: |
bb.0.entry:
successors: %bb.1, %bb.2
liveins: $edi
CMP32ri8 $edi, 10, implicit-def $eflags
JCC_1 %bb.2, 15, implicit killed $eflags
bb.1.less:
$eax = MOV32r0 implicit-def dead $eflags
RET64 killed $eax
bb.2.exit:
liveins: $edi
$eax = COPY killed $edi
RET64 killed $eax
...
---
name: bar
tracksRegLiveness: true
liveins:
- { reg: '$edi' }
# CHECK-LABEL: name: bar
# CHECK: body: |
# CHECK-NEXT: bb.0.entry:
# CHECK-NEXT: successors: %bb.1(0x40000000), %bb.2(0x40000000)
# CHECK-NEXT: liveins: $edi
# CHECK: CMP32ri8 $edi, 10, implicit-def $eflags
# CHECK-NEXT: JCC_1 %bb.2, 15, implicit killed $eflags
# CHECK: bb.1.less:
# CHECK-NEXT: $eax = MOV32r0 implicit-def dead $eflags
# CHECK-NEXT: RET64 killed $eax
# CHECK: bb.2.exit:
# CHECK-NEXT: liveins: $edi
# CHECK: $eax = COPY killed $edi
# CHECK-NEXT: RET64 killed $eax
body: |
bb.0.entry:
successors: %bb.1, %bb.2
liveins: $edi
CMP32ri8 $edi, 10, implicit-def $eflags
JCC_1 %bb.2, 15, implicit killed $eflags
bb.1.less: $eax = MOV32r0 implicit-def dead $eflags
RET64 killed $eax
bb.2.exit: liveins: $edi
$eax = COPY killed $edi
RET64 killed $eax
...
|