| # RUN: llc -mtriple=thumbv6m--eabi -verify-machineinstrs -run-pass=arm-ldst-opt %s -o - | FileCheck %s |
| |
| # Make sure bb.0 isn't transformed: it would incorrectly clobber CPSR. |
| # |
| # Make sure bb.1 is transformed, so the test doesn't accidentally break. |
| |
| # CHECK-LABEL: bb.0: |
| # CHECK: renamable $r0 = tLDRi renamable $r4, 0, 14, $noreg :: (load 4) |
| # CHECK: renamable $r1 = tLDRi renamable $r4, 1, 14, $noreg :: (load 4) |
| |
| # CHECK-LABEL: bb.1: |
| # CHECK: $r4 = tLDMIA_UPD $r4, 14, $noreg, def $r0, def $r1 |
| # CHECK: $r4, dead $cpsr = tSUBi8 $r4, 8, 14, $noreg |
| |
| name: foo |
| tracksRegLiveness: true |
| body: | |
| bb.0: |
| liveins: $r2, $r4 |
| renamable $r0 = tLDRi renamable $r2, 4, 14, $noreg :: (load 4) |
| dead renamable $r0, $cpsr = tADDi3 killed renamable $r0, 1, 14, $noreg |
| renamable $r0 = tLDRi renamable $r4, 0, 14, $noreg :: (load 4) |
| renamable $r1 = tLDRi renamable $r4, 1, 14, $noreg :: (load 4) |
| tBcc %bb.1, 0, killed $cpsr |
| bb.1: |
| liveins: $r2, $r4 |
| renamable $r0 = tLDRi renamable $r2, 4, 14, $noreg :: (load 4) |
| dead renamable $r0, $cpsr = tADDi3 killed renamable $r0, 1, 14, $noreg |
| renamable $r0 = tLDRi renamable $r4, 0, 14, $noreg :: (load 4) |
| renamable $r1 = tLDRi renamable $r4, 1, 14, $noreg :: (load 4) |
| bb.2: |
| liveins: $r4 |
| TRAP |
