| # RUN: llc -o - %s -mtriple=thumbv7-- -run-pass=stack-protector -run-pass=prologepilog | FileCheck %s |
| --- |
| # This should trigger an emergency spill in the register scavenger because the |
| # frame offset into the large argument is too large. |
| # CHECK-LABEL: name: func0 |
| # CHECK: t2STRi12 killed [[SPILLED:\$r[0-9]+]], $sp, 0, 14, $noreg :: (store 4 into %stack.0) |
| # CHECK: [[SPILLED]] = t2ADDri killed $sp, 4096, 14, $noreg, $noreg |
| # CHECK: $sp = t2LDRi12 killed [[SPILLED]], 40, 14, $noreg :: (load 4) |
| # CHECK: [[SPILLED]] = t2LDRi12 $sp, 0, 14, $noreg :: (load 4 from %stack.0) |
| name: func0 |
| tracksRegLiveness: true |
| fixedStack: |
| - { id: 0, offset: 4084, size: 4, alignment: 4, isImmutable: true, |
| isAliased: false } |
| - { id: 1, offset: -12, size: 4096, alignment: 4, isImmutable: false, |
| isAliased: false } |
| body: | |
| bb.0: |
| $r0 = IMPLICIT_DEF |
| $r1 = IMPLICIT_DEF |
| $r2 = IMPLICIT_DEF |
| $r3 = IMPLICIT_DEF |
| $r4 = IMPLICIT_DEF |
| $r5 = IMPLICIT_DEF |
| $r6 = IMPLICIT_DEF |
| $r7 = IMPLICIT_DEF |
| $r8 = IMPLICIT_DEF |
| $r9 = IMPLICIT_DEF |
| $r10 = IMPLICIT_DEF |
| $r11 = IMPLICIT_DEF |
| $r12 = IMPLICIT_DEF |
| $lr = IMPLICIT_DEF |
| |
| $sp = t2LDRi12 %fixed-stack.0, 0, 14, $noreg :: (load 4) |
| |
| KILL $r0 |
| KILL $r1 |
| KILL $r2 |
| KILL $r3 |
| KILL $r4 |
| KILL $r5 |
| KILL $r6 |
| KILL $r7 |
| KILL $r8 |
| KILL $r9 |
| KILL $r10 |
| KILL $r11 |
| KILL $r12 |
| KILL $lr |
| ... |
| --- |
| # This should not trigger an emergency spill yet. |
| # CHECK-LABEL: name: func1 |
| # CHECK-NOT: t2STRi12 |
| # CHECK-NOT: t2ADDri |
| # CHECK: $r11 = t2LDRi12 $sp, 4092, 14, $noreg :: (load 4) |
| # CHECK-NOT: t2LDRi12 |
| name: func1 |
| tracksRegLiveness: true |
| fixedStack: |
| - { id: 0, offset: 4044, size: 4, alignment: 4, isImmutable: true, |
| isAliased: false } |
| - { id: 1, offset: -12, size: 4056, alignment: 4, isImmutable: false, |
| isAliased: false } |
| body: | |
| bb.0: |
| $r0 = IMPLICIT_DEF |
| $r1 = IMPLICIT_DEF |
| $r2 = IMPLICIT_DEF |
| $r3 = IMPLICIT_DEF |
| $r4 = IMPLICIT_DEF |
| $r5 = IMPLICIT_DEF |
| $r6 = IMPLICIT_DEF |
| $r8 = IMPLICIT_DEF |
| $r9 = IMPLICIT_DEF |
| $r10 = IMPLICIT_DEF |
| $r11 = IMPLICIT_DEF |
| $r12 = IMPLICIT_DEF |
| $lr = IMPLICIT_DEF |
| |
| $r11 = t2LDRi12 %fixed-stack.0, 0, 14, $noreg :: (load 4) |
| |
| KILL $r0 |
| KILL $r1 |
| KILL $r2 |
| KILL $r3 |
| KILL $r4 |
| KILL $r5 |
| KILL $r6 |
| KILL $r8 |
| KILL $r9 |
| KILL $r10 |
| KILL $r11 |
| KILL $r12 |
| KILL $lr |
| ... |
