# 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 ...