bundled-instructions.mir
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# RUN: llc -mtriple thumbv7-apple-ios -run-pass none -o - %s | FileCheck %s
# This test ensures that the MIR parser parses the bundled machine instructions
# and 'internal' register flags correctly.
--- |
define i32 @test1(i32 %a) {
entry:
%cmp = icmp sgt i32 %a, -78
%. = zext i1 %cmp to i32
ret i32 %.
}
define i32 @test2(i32 %a) {
entry:
%cmp = icmp sgt i32 %a, -78
%. = zext i1 %cmp to i32
ret i32 %.
}
...
---
name: test1
tracksRegLiveness: true
liveins:
- { reg: '$r0' }
body: |
bb.0.entry:
liveins: $r0
; CHECK-LABEL: name: test1
; CHECK: $r1 = t2MOVi 0, 14, $noreg, $noreg
; CHECK-NEXT: t2CMNri killed $r0, 78, 14, $noreg, implicit-def $cpsr
; CHECK-NEXT: BUNDLE implicit-def dead $itstate, implicit-def $r1, implicit killed $cpsr {
; CHECK-NEXT: t2IT 12, 8, implicit-def $itstate
; CHECK-NEXT: $r1 = t2MOVi 1, 12, killed $cpsr, $noreg, implicit internal killed $itstate
; CHECK-NEXT: }
; CHECK-NEXT: $r0 = tMOVr killed $r1, 14, $noreg
; CHECK-NEXT: tBX_RET 14, $noreg, implicit killed $r0
$r1 = t2MOVi 0, 14, _, _
t2CMNri killed $r0, 78, 14, _, implicit-def $cpsr
BUNDLE implicit-def dead $itstate, implicit-def $r1, implicit killed $cpsr {
t2IT 12, 8, implicit-def $itstate
$r1 = t2MOVi 1, 12, killed $cpsr, _, implicit internal killed $itstate
}
$r0 = tMOVr killed $r1, 14, _
tBX_RET 14, _, implicit killed $r0
...
---
name: test2
tracksRegLiveness: true
liveins:
- { reg: '$r0' }
body: |
bb.0.entry:
liveins: $r0
; Verify that the next machine instruction can be on the same line as
; '{' or '}'.
; CHECK-LABEL: name: test2
; CHECK: $r1 = t2MOVi 0, 14, $noreg, $noreg
; CHECK-NEXT: t2CMNri killed $r0, 78, 14, $noreg, implicit-def $cpsr
; CHECK-NEXT: BUNDLE implicit-def dead $itstate, implicit-def $r1, implicit killed $cpsr {
; CHECK-NEXT: t2IT 12, 8, implicit-def $itstate
; CHECK-NEXT: $r1 = t2MOVi 1, 12, killed $cpsr, $noreg, implicit internal killed $itstate
; CHECK-NEXT: }
; CHECK-NEXT: $r0 = tMOVr killed $r1, 14, $noreg
; CHECK-NEXT: tBX_RET 14, $noreg, implicit killed $r0
$r1 = t2MOVi 0, 14, _, _
t2CMNri killed $r0, 78, 14, _, implicit-def $cpsr
BUNDLE implicit-def dead $itstate, implicit-def $r1, implicit killed $cpsr { t2IT 12, 8, implicit-def $itstate
$r1 = t2MOVi 1, 12, killed $cpsr, _, internal implicit killed $itstate
} $r0 = tMOVr killed $r1, 14, _
tBX_RET 14, _, implicit killed $r0
...