| # 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, _ |
| tSTRi %r0, %0, 0, 14, _ |
| |
| %1 : tgpr = IMPLICIT_DEF |
| %1 = tADDhirr %1, %sp, 14, _ |
| tSTRi %r1, %1, 0, 14, _ |
| |
| %2 : tgpr = IMPLICIT_DEF |
| %2 = tADDhirr %2, %sp, 14, _ |
| tSTRi %r2, %2, 0, 14, _ |
| |
| %3 : tgpr = IMPLICIT_DEF |
| %3 = tADDhirr %3, %sp, 14, _ |
| tSTRi %r3, %3, 0, 14, _ |
| |
| %4 : tgpr = IMPLICIT_DEF |
| %4 = tADDhirr %4, %sp, 14, _ |
| tSTRi %r4, %4, 0, 14, _ |
| |
| %5 : tgpr = IMPLICIT_DEF |
| %5 = tADDhirr %5, %sp, 14, _ |
| tSTRi %r5, %5, 0, 14, _ |
| |
| %6 : tgpr = IMPLICIT_DEF |
| %6 = tADDhirr %6, %sp, 14, _ |
| tSTRi %r6, %6, 0, 14, _ |
| |
| %7 : tgpr = IMPLICIT_DEF |
| %7 = tADDhirr %7, %sp, 14, _ |
| tSTRi %r7, %7, 0, 14, _ |
| |
| KILL %r0 |
| KILL %r1 |
| KILL %r2 |
| KILL %r3 |
| KILL %r4 |
| KILL %r5 |
| KILL %r6 |
| KILL %r7 |