diff options
Diffstat (limited to 'test/CodeGen/AArch64/spill-stack-realignment.mir')
| -rw-r--r-- | test/CodeGen/AArch64/spill-stack-realignment.mir | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/test/CodeGen/AArch64/spill-stack-realignment.mir b/test/CodeGen/AArch64/spill-stack-realignment.mir new file mode 100644 index 000000000000..fe85f4b64027 --- /dev/null +++ b/test/CodeGen/AArch64/spill-stack-realignment.mir @@ -0,0 +1,35 @@ +# RUN: llc -mtriple=aarch64-none-linux-gnu -run-pass=prologepilog %s -o - | FileCheck %s + +# Ensure references to scavenged stack slots in the CSR area use the +# FP as a base when the stack pointer must be aligned to something +# larger than required by the target. This is necessary because the +# alignment padding area is between the CSR area and the SP, so the SP +# cannot be used to reference the CSR area. +name: test +tracksRegLiveness: true +frameInfo: + maxAlignment: 64 +# CHECK: stack: +# CHECK: id: 0, name: '', type: default, offset: -64, size: 4, alignment: 64 +# CHECK-NEXT: stack-id: 0 +# CHECK-NEXT: local-offset: -64 +# CHECK: id: 1, name: '', type: default, offset: -20, size: 4, alignment: 4 +# CHECK-NEXT: stack-id: 0 +# CHECK-NEXT: local-offset: -68 +stack: + - { id: 0, size: 4, alignment: 64, local-offset: -64 } + - { id: 1, size: 4, alignment: 4, local-offset: -68 } + +# CHECK: body: +# CHECK: %sp = ANDXri killed %{{x[0-9]+}}, 7865 +# CHECK: STRSui %s0, %sp, 0 +# CHECK: STURSi %s0, %fp, -4 +body: | + bb.0.entry: + liveins: %s0 + + STRSui %s0, %stack.0, 0 + STRSui %s0, %stack.1, 0 + ; Force preserve a CSR to create a hole in the CSR stack region. + %x28 = IMPLICIT_DEF + RET_ReallyLR |