| # RUN: llc -mtriple thumbv6m-none-eabi -run-pass=opt-phis -verify-machineinstrs -o - %s | FileCheck %s |
| # RUN: llc -mtriple thumbv6m-none-eabi -passes=opt-phis -verify-machineinstrs -o - %s | FileCheck %s |
| --- | |
| target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64" |
| target triple = "thumbv6m-arm-none-eabi" |
| |
| define i32 @funca() { unreachable } |
| |
| ... |
| --- |
| name: funca |
| tracksRegLiveness: true |
| body: | |
| bb.0: |
| successors: %bb.2(0x40000000), %bb.3(0x40000000) |
| |
| %0:tgpr, dead $cpsr = tMOVi8 255, 14, $noreg |
| %1:tgpr, dead $cpsr = tMOVi8 128, 14, $noreg |
| tCMPi8 %0, 0, 14, $noreg, implicit-def $cpsr |
| tBcc %bb.3, 1, $cpsr |
| |
| bb.2: |
| successors: %bb.3(0x80000000) |
| |
| bb.3: |
| successors: %bb.0(0x80000000) |
| |
| %2:tgpr = PHI %0, %bb.2, %0, %bb.0 |
| %3:tgpr, $cpsr = tSUBrr %1, killed %2, 14, $noreg |
| %4:tgpr, $cpsr = tADDrr killed %3, killed %0, 14, $noreg |
| tB %bb.0, 14, $noreg |
| |
| # Make sure the kill flags are not incorrect |
| # CHECK-LABEL: name: funca |
| # CHECK-NOT: PHI |
| # CHECK: tSUBrr %1, %0 |
| # CHECK: tADDrr killed %3, %0 |
| |
| ... |
