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# RUN: llc -o - %s -mtriple=thumb-arm-none-eabi -mcpu=cortex-m0 -run-pass scavenger-test | FileCheck %s
---
# CHECK-LABEL: name: scavengebug0
# Make sure we are not spilling/using a physreg used in the very last
# instruction of the scavenging range.
# CHECK-NOT: tSTRi {{.*}}$r0,{{.*}}$r0
# CHECK-NOT: tSTRi {{.*}}$r1,{{.*}}$r1
# CHECK-NOT: tSTRi {{.*}}$r2,{{.*}}$r2
# CHECK-NOT: tSTRi {{.*}}$r3,{{.*}}$r3
# CHECK-NOT: tSTRi {{.*}}$r4,{{.*}}$r4
# CHECK-NOT: tSTRi {{.*}}$r5,{{.*}}$r5
# CHECK-NOT: tSTRi {{.*}}$r6,{{.*}}$r6
# CHECK-NOT: tSTRi {{.*}}$r7,{{.*}}$r7
name: scavengebug0
body: |
bb.0:
; Bring up register pressure to force emergency spilling
$r0 = IMPLICIT_DEF
$r1 = IMPLICIT_DEF
$r2 = IMPLICIT_DEF
$r3 = IMPLICIT_DEF
$r4 = IMPLICIT_DEF
$r5 = IMPLICIT_DEF
$r6 = IMPLICIT_DEF
$r7 = IMPLICIT_DEF
%0 : tgpr = IMPLICIT_DEF
%0 = tADDhirr %0, $sp, 14, $noreg
tSTRi $r0, %0, 0, 14, $noreg
%1 : tgpr = IMPLICIT_DEF
%1 = tADDhirr %1, $sp, 14, $noreg
tSTRi $r1, %1, 0, 14, $noreg
%2 : tgpr = IMPLICIT_DEF
%2 = tADDhirr %2, $sp, 14, $noreg
tSTRi $r2, %2, 0, 14, $noreg
%3 : tgpr = IMPLICIT_DEF
%3 = tADDhirr %3, $sp, 14, $noreg
tSTRi $r3, %3, 0, 14, $noreg
%4 : tgpr = IMPLICIT_DEF
%4 = tADDhirr %4, $sp, 14, $noreg
tSTRi $r4, %4, 0, 14, $noreg
%5 : tgpr = IMPLICIT_DEF
%5 = tADDhirr %5, $sp, 14, $noreg
tSTRi $r5, %5, 0, 14, $noreg
%6 : tgpr = IMPLICIT_DEF
%6 = tADDhirr %6, $sp, 14, $noreg
tSTRi $r6, %6, 0, 14, $noreg
%7 : tgpr = IMPLICIT_DEF
%7 = tADDhirr %7, $sp, 14, $noreg
tSTRi $r7, %7, 0, 14, $noreg
KILL $r0
KILL $r1
KILL $r2
KILL $r3
KILL $r4
KILL $r5
KILL $r6
KILL $r7
|
