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llvm/trunk/test/CodeGen/Thumb/opt-phis.mir
| # RUN: llc -mtriple thumbv6m-none-eabi -run-pass=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 | |||||
| ... | |||||