# RUN: llc -mtriple=aarch64--- -run-pass=machine-outliner \ # RUN: -verify-machineinstrs %s -o - | FileCheck %s --- | define void @no-save1() #0 { ret void } define void @no-save2() #0 { ret void } define void @reg-save() #0 { ret void } define void @stack-save() #0 { ret void } attributes #0 = { minsize noinline noredzone "frame-pointer"="all" } ... --- name: no-save1 tracksRegLiveness: true body: | bb.0: liveins: $lr $lr = ORRXri $xzr, 1 bb.1: ; CHECK-LABEL: name: no-save1 ; CHECK: BL [[FN:@OUTLINED_FUNCTION_[0-9]+]] ; CHECK-NOT: STRXpre ; CHECK-NOT: $lr = ; CHECK-NOT: ORRXrs $x12 = ADDXri $sp, 48, 0; $x12 = ADDXri $sp, 48, 0; $x12 = ADDXri $sp, 48, 0; $x12 = ADDXri $sp, 48, 0; $x12 = ADDXri $sp, 48, 0; bb.2: RET undef $lr ... --- name: no-save2 tracksRegLiveness: true body: | bb.0: liveins: $lr $lr = ORRXri $xzr, 1 bb.1: ; CHECK-LABEL: name: no-save2 ; CHECK: BL [[FN]] ; CHECK-NOT: STRXpre ; CHECK-NOT: $lr = ; CHECK-NOT: ORRXrs $x12 = ADDXri $sp, 48, 0; $x12 = ADDXri $sp, 48, 0; $x12 = ADDXri $sp, 48, 0; $x12 = ADDXri $sp, 48, 0; $x12 = ADDXri $sp, 48, 0; bb.2: RET undef $lr ... --- name: reg-save tracksRegLiveness: true body: | bb.0: liveins: $lr $lr = ORRXri $xzr, 1 bb.1: liveins: $lr ; CHECK-LABEL: name: reg-save ; CHECK: $[[REG:x[0-9]+]] = ORRXrs $xzr, $lr, 0 ; CHECK-NEXT: BL [[FN]] ; CHECK-NEXT: $lr = ORRXrs $xzr, $[[REG]], 0 $x12 = ADDXri $sp, 48, 0; $x12 = ADDXri $sp, 48, 0; $x12 = ADDXri $sp, 48, 0; $x12 = ADDXri $sp, 48, 0; $x12 = ADDXri $sp, 48, 0; bb.2: liveins: $lr RET undef $lr ... --- name: stack-save tracksRegLiveness: true body: | bb.0: liveins: $lr, $x0, $x1, $x2, $x3, $x4, $x5, $x6, $x7, $x8, $x9, $x10, $x11, $x12, $x13, $x14, $x15, $x18, $x19, $x20, $x21, $x22, $x23, $x20, $x21, $x22, $x23, $x24, $x25, $x26, $x27, $x28, $fp $lr = ORRXri $xzr, 1 bb.1: liveins: $lr, $x0, $x1, $x2, $x3, $x4, $x5, $x6, $x7, $x8, $x9, $x10, $x11, $x12, $x13, $x14, $x15, $x18, $x19, $x20, $x21, $x22, $x23, $x20, $x21, $x22, $x23, $x24, $x25, $x26, $x27, $x28, $fp ; CHECK-LABEL: name: stack-save ; CHECK-NOT: BL $x12 = ADDXri $sp, 48, 0; $x12 = ADDXri $sp, 48, 0; $x12 = ADDXri $sp, 48, 0; $x12 = ADDXri $sp, 48, 0; $x12 = ADDXri $sp, 48, 0; bb.2: liveins: $lr, $x0, $x1, $x2, $x3, $x4, $x5, $x6, $x7, $x8, $x9, $x10, $x11, $x12, $x13, $x14, $x15, $x18, $x19, $x20, $x21, $x22, $x23, $x20, $x21, $x22, $x23, $x24, $x25, $x26, $x27, $x28, $fp RET undef $lr