| # RUN: llc -run-pass ppc-mi-peepholes -ppc-eliminate-signext -ppc-eliminate-zeroext -verify-machineinstrs -o - %s | FileCheck %s |
| |
| --- | |
| target datalayout = "E-m:e-i64:64-n32:64" |
| target triple = "powerpc64le-unknown-linux-gnu" |
| define ptr @func(ptr %a) { |
| entry: |
| ret ptr %a |
| } |
| |
| ... |
| --- |
| name: func |
| alignment: 4 |
| exposesReturnsTwice: false |
| legalized: false |
| regBankSelected: false |
| selected: false |
| tracksRegLiveness: true |
| liveins: |
| - { reg: '$x3', virtual-reg: '%0' } |
| frameInfo: |
| isFrameAddressTaken: false |
| isReturnAddressTaken: false |
| hasStackMap: false |
| hasPatchPoint: false |
| stackSize: 0 |
| offsetAdjustment: 0 |
| maxAlignment: 0 |
| adjustsStack: false |
| hasCalls: false |
| maxCallFrameSize: 0 |
| hasOpaqueSPAdjustment: false |
| hasVAStart: false |
| hasMustTailInVarArgFunc: false |
| body: | |
| bb.0.entry: |
| liveins: $x3 |
| |
| ; CHECK-LABEL: bb.0.entry: |
| ; CHECK: %4:g8rc = EXTSW_32_64 %3 |
| ; CHECK: %5:g8rc = INSERT_SUBREG %15, %1, %subreg.sub_32 |
| ; CHECK: %7:g8rc = EXTSW_32_64 %6 |
| ; CHECK: %9:g8rc = INSERT_SUBREG %16, %8, %subreg.sub_32 |
| ; CHECK: %11:g8rc = INSERT_SUBREG %17, %10, %subreg.sub_32 |
| ; CHECK: %14:g8rc = COPY %1 |
| |
| %0:g8rc_nox0 = COPY $x3 |
| %1:gprc, %2:g8rc_nox0 = LBZU 0, %0:g8rc_nox0 |
| %3:gprc = COPY %2:g8rc_nox0 |
| %4:g8rc = EXTSW_32_64 %3:gprc ; should not be eliminated |
| %5:g8rc = EXTSW_32_64 %1:gprc |
| |
| %6:gprc = ORIS %1:gprc, 32768 ; should not be eliminated |
| %7:g8rc = EXTSW_32_64 %6:gprc |
| |
| %8:gprc = ORIS %1:gprc, 32767 |
| %9:g8rc = EXTSW_32_64 %8:gprc |
| |
| %10:gprc = ORI %1:gprc, 32768 |
| %11:g8rc = EXTSW_32_64 %10:gprc |
| |
| %12:g8rc = IMPLICIT_DEF |
| %13:g8rc = INSERT_SUBREG %12:g8rc, %1:gprc, %subreg.sub_32 |
| %14:g8rc = RLDICL %13:g8rc, 0, 32 |
| |
| ... |
