#RUN: llc -mtriple=aarch64-- -run-pass prologepilog %s -o - | FileCheck %s # Check that we use the frame pointer to address the emergency spill slot. # Using the base pointer will result in an assert with "Emergency spill slot is # out of reach". --- name: hugeStack # CHECK-LABEL: name: hugeStack tracksRegLiveness: true frameInfo: localFrameSize: 256 stack: - { id: 0, type: variable-sized, alignment: 1 } - { id: 1, name: '', size: 32761, alignment: 8 } body: | bb.0: liveins: $x19, $x20, $x21, $x22, $x23, $x24, $x25, $x26, $x27, $x28 STRXui undef $x8, %stack.0, 0 ; CHECK: STRXui undef $x8, $fp, 0 B %bb.1 bb.1: liveins: $x19, $x20, $x21, $x22, $x23, $x24, $x25, $x26, $x27, $x28 RET_ReallyLR implicit $x19, implicit $x20, implicit $x21, implicit $x22, implicit $x23, implicit $x24, implicit $x25, implicit $x26, implicit $x27, implicit $x28 ... --- name: fpDoesNotFit # CHECK-LABEL: name: fpDoesNotFit tracksRegLiveness: true frameInfo: hasStackMap: true # set to true to force hasFP to true. stack: - { id: 0, name: '', size: 4096, alignment: 8 } - { id: 1, name: '', size: 32761, alignment: 8 } body: | bb.0: STRXui undef $x8, %stack.0, -34 ; Pick SP here. Picking FP will require scavenging a register. ; CHECK: STRXui undef $x8, $sp, 4062 RET_ReallyLR