| # RUN: llc -mcpu=future -mtriple=powerpc64le-unknown-unknown %s \ |
| # RUN: -start-before=ppc-branch-select -verify-machineinstrs \ |
| # RUN: -filetype=obj -o - | llvm-objdump --mcpu=future -d -r - | \ |
| # RUN: FileCheck --check-prefix=CHECK-LE %s |
| # RUN: llc -mcpu=future -mtriple=powerpc64-unknown-unknown %s \ |
| # RUN: -start-before=ppc-branch-select -verify-machineinstrs \ |
| # RUN: -filetype=obj -o - | llvm-objdump --mcpu=future -d -r - | \ |
| # RUN: FileCheck --check-prefix=CHECK-BE %s |
| |
| # The purpose of this test is to check that long branches are selected correctly |
| # when we have prefixed instructions that may require alignment. Prefixed |
| # instructions may require alignment and so an additional 4 bytes may be added. |
| # If those 4 bytes put the target of the branch past the range of a short branch |
| # then we should use a long branch like in this test. |
| |
| --- |
| name: longbranchtest |
| alignment: 16 |
| exposesReturnsTwice: false |
| legalized: false |
| regBankSelected: false |
| selected: false |
| failedISel: false |
| tracksRegLiveness: true |
| hasWinCFI: false |
| registers: [] |
| liveins: |
| - { reg: '$x3', virtual-reg: '' } |
| frameInfo: |
| isFrameAddressTaken: false |
| isReturnAddressTaken: false |
| hasStackMap: false |
| hasPatchPoint: false |
| stackSize: 0 |
| offsetAdjustment: 0 |
| maxAlignment: 1 |
| adjustsStack: false |
| hasCalls: false |
| stackProtector: '' |
| maxCallFrameSize: 0 |
| cvBytesOfCalleeSavedRegisters: 0 |
| hasOpaqueSPAdjustment: false |
| hasVAStart: false |
| hasMustTailInVarArgFunc: false |
| localFrameSize: 0 |
| savePoint: '' |
| restorePoint: '' |
| fixedStack: [] |
| stack: [] |
| callSites: [] |
| constants: [] |
| machineFunctionInfo: {} |
| body: | |
| bb.0.entry: |
| successors: %bb.1(0x30000000), %bb.2(0x50000000) |
| liveins: $x3 |
| renamable $cr0 = CMPLWI killed renamable $r3, 0, implicit $x3 |
| BCC 76, killed renamable $cr0, %bb.1 |
| bb.2: |
| renamable $x3 = LI8 2 |
| INLINEASM &".space 32744", 1 |
| renamable $x3 = PADDI8 $x3, 13 |
| BLR8 implicit $lr8, implicit $rm, implicit killed $x3 |
| bb.1: |
| renamable $x3 = LI8 1 |
| INLINEASM &".space 32744", 1 |
| renamable $x3 = PADDI8 $x3, 21 |
| BLR8 implicit $lr8, implicit $rm, implicit killed $x3 |
| |
| ... |
| |
| # Check for the long branch. |
| # CHECK-LE: 08 00 82 4{{[01]}} b{{[tf]}} 2, 0xc |
| # CHECK-LE-NEXT: fc 7f 00 48 b 0x8004 |
| # CHECK-LE-DAG: paddi 3, 3, 13, 0 |
| # CHECK-LE-DAG: paddi 3, 3, 21, 0 |
| # CHECK-LE: blr |
| # CHECK-BE: 4{{[01]}} 82 00 08 b{{[tf]}} 2, 0xc |
| # CHECK-BE-NEXT: 48 00 7f fc b 0x8004 |
| # CHECK-BE-DAG: paddi 3, 3, 13, 0 |
| # CHECK-BE-DAG: paddi 3, 3, 21, 0 |
| # CHECK-BE: blr |
| |
| |
