| # RUN: llc -mtriple aarch64 -run-pass=early-tailduplication -verify-machineinstrs %s -o - 2>&1 | FileCheck %s |
| --- |
| name: pluto |
| tracksRegLiveness: true |
| body: | |
| ; This test checks that the COPY3 and COPY4 copies are correctly placed in the bb.5 block, |
| ; instead of crashing. |
| |
| ; CHECK-LABEL: name: pluto |
| ; CHECK: bb.0: |
| ; CHECK: successors: %bb.1(0x40000000), %bb.2(0x40000000) |
| ; CHECK: liveins: $x0 |
| ; CHECK: [[DEF:%[0-9]+]]:gpr32 = IMPLICIT_DEF |
| ; CHECK: [[DEF1:%[0-9]+]]:gpr32common = IMPLICIT_DEF |
| ; CHECK: [[DEF2:%[0-9]+]]:gpr64 = IMPLICIT_DEF |
| ; CHECK: [[DEF3:%[0-9]+]]:gpr64common = IMPLICIT_DEF |
| ; CHECK: [[MOVi32imm:%[0-9]+]]:gpr32 = MOVi32imm 1 |
| ; CHECK: [[FMOVD0_:%[0-9]+]]:fpr64 = FMOVD0 |
| ; CHECK: TBNZW [[DEF]], 0, %bb.1 |
| ; CHECK: B %bb.2 |
| ; CHECK: bb.1: |
| ; CHECK: successors: %bb.9(0x80000000) |
| ; CHECK: [[LDRXui:%[0-9]+]]:gpr64 = LDRXui [[DEF3]], 0 :: (load (s64) from `ptr undef`) |
| ; CHECK: B %bb.9 |
| ; CHECK: bb.2: |
| ; CHECK: successors: %bb.3(0x40000000), %bb.4(0x40000000) |
| ; CHECK: $wzr = SUBSWri [[DEF1]], 19, 0, implicit-def $nzcv |
| ; CHECK: [[CSINCWr:%[0-9]+]]:gpr32 = CSINCWr $wzr, $wzr, 1, implicit $nzcv |
| ; CHECK: TBNZW [[CSINCWr]], 0, %bb.3 |
| ; CHECK: B %bb.4 |
| ; CHECK: bb.3: |
| ; CHECK: successors: %bb.9(0x80000000) |
| ; CHECK: [[SCVTFUXDri:%[0-9]+]]:fpr64 = SCVTFUXDri [[DEF2]], implicit $fpcr |
| ; CHECK: [[COPY:%[0-9]+]]:gpr64 = COPY [[SCVTFUXDri]] |
| ; CHECK: [[COPY1:%[0-9]+]]:fpr64 = COPY [[SCVTFUXDri]] |
| ; CHECK: B %bb.9 |
| ; CHECK: bb.4: |
| ; CHECK: successors: %bb.5(0x40000000), %bb.8(0x40000000) |
| ; CHECK: TBNZW [[DEF]], 0, %bb.5 |
| ; CHECK: B %bb.8 |
| ; CHECK: bb.5: |
| ; CHECK: successors: %bb.9(0x80000000) |
| ; CHECK: [[COPY2:%[0-9]+]]:fpr64 = COPY [[DEF2]] |
| ; CHECK: [[COPY3:%[0-9]+]]:gpr64 = COPY [[COPY2]] |
| ; CHECK: [[COPY4:%[0-9]+]]:fpr64 = COPY [[DEF2]] |
| ; CHECK: B %bb.9 |
| ; CHECK: bb.8: |
| ; CHECK: successors: %bb.9(0x80000000) |
| ; CHECK: bb.9: |
| ; CHECK: [[PHI:%[0-9]+]]:gpr64 = PHI [[LDRXui]], %bb.1, [[FMOVD0_]], %bb.8, [[COPY]], %bb.3, [[COPY3]], %bb.5 |
| ; CHECK: ADJCALLSTACKDOWN 0, 0, implicit-def $sp, implicit $sp |
| ; CHECK: $d0 = COPY [[PHI]] |
| ; CHECK: BL @pluto, csr_aarch64_aapcs, implicit-def $lr, implicit $sp, implicit $d0, implicit-def $d0 |
| ; CHECK: ADJCALLSTACKUP 0, 0, implicit-def $sp, implicit $sp |
| ; CHECK: $w0 = COPY [[MOVi32imm]] |
| ; CHECK: RET_ReallyLR implicit $w0 |
| |
| bb.1: |
| successors: %bb.2(0x40000000), %bb.3(0x40000000) |
| liveins: $x0 |
| |
| %1:gpr32 = IMPLICIT_DEF |
| %2:gpr32common = IMPLICIT_DEF |
| %5:gpr64 = IMPLICIT_DEF |
| %9:gpr64common = IMPLICIT_DEF |
| %13:gpr32 = MOVi32imm 1 |
| %14:fpr64 = FMOVD0 |
| TBNZW %1, 0, %bb.2 |
| B %bb.3 |
| |
| bb.2: |
| successors: %bb.8(0x80000000) |
| |
| %8:gpr64 = LDRXui %9, 0 :: (load (s64) from `ptr undef`) |
| B %bb.8 |
| |
| bb.3: |
| successors: %bb.4(0x40000000), %bb.5(0x40000000) |
| |
| $wzr = SUBSWri %2, 19, 0, implicit-def $nzcv |
| %15:gpr32 = CSINCWr $wzr, $wzr, 1, implicit $nzcv |
| TBNZW %15, 0, %bb.4 |
| B %bb.5 |
| |
| bb.4: |
| successors: %bb.7(0x80000000) |
| |
| %6:fpr64 = SCVTFUXDri %5, implicit $fpcr |
| B %bb.7 |
| |
| bb.5: |
| successors: %bb.6(0x40000000), %bb.9(0x40000000) |
| |
| TBNZW %1, 0, %bb.6 |
| B %bb.9 |
| |
| bb.6: |
| successors: %bb.7(0x80000000) |
| |
| |
| bb.7: |
| successors: %bb.8(0x80000000) |
| |
| %7:fpr64 = PHI %6, %bb.4, %5, %bb.6 |
| |
| bb.8: |
| successors: %bb.10(0x80000000) |
| |
| %10:gpr64 = PHI %8, %bb.2, %7, %bb.7 |
| B %bb.10 |
| |
| bb.9: |
| successors: %bb.10(0x80000000) |
| |
| |
| bb.10: |
| %11:gpr64 = PHI %10, %bb.8, %14, %bb.9 |
| ADJCALLSTACKDOWN 0, 0, implicit-def $sp, implicit $sp |
| $d0 = COPY %11 |
| BL @pluto, csr_aarch64_aapcs, implicit-def $lr, implicit $sp, implicit $d0, implicit-def $d0 |
| ADJCALLSTACKUP 0, 0, implicit-def $sp, implicit $sp |
| $w0 = COPY %13 |
| RET_ReallyLR implicit $w0 |
| |
| ... |