| Tony Jiang | 3b49dc5 | 2017-12-11 20:42:37 +0000 | [diff] [blame^] | 1 | # This file tests the scenario: ISEL RX, RY, RY, CR (X != 0 && Y != 0) |
| 2 | # It is folded into a copy (%RX = OR %RY, %RY) |
| 3 | # RUN: llc -ppc-gen-isel=true -run-pass ppc-expand-isel -o - %s | FileCheck %s |
| 4 | |
| 5 | --- | |
| 6 | target datalayout = "E-m:e-i64:64-n32:64" |
| 7 | target triple = "powerpc64-unknown-linux-gnu" |
| 8 | define signext i32 @testExpandISEL(i32 signext %i, i32 signext %j) { |
| 9 | entry: |
| 10 | %cmp = icmp sgt i32 %i, 0 |
| 11 | %add = add nsw i32 %i, 1 |
| 12 | %cond = select i1 %cmp, i32 %add, i32 %j |
| 13 | ret i32 %cond |
| 14 | } |
| 15 | |
| 16 | ... |
| 17 | --- |
| 18 | name: testExpandISEL |
| 19 | alignment: 2 |
| 20 | exposesReturnsTwice: false |
| 21 | legalized: false |
| 22 | regBankSelected: false |
| 23 | selected: false |
| 24 | tracksRegLiveness: true |
| 25 | liveins: |
| 26 | - { reg: '%x3' } |
| 27 | - { reg: '%x4' } |
| 28 | frameInfo: |
| 29 | isFrameAddressTaken: false |
| 30 | isReturnAddressTaken: false |
| 31 | hasStackMap: false |
| 32 | hasPatchPoint: false |
| 33 | stackSize: 0 |
| 34 | offsetAdjustment: 0 |
| 35 | maxAlignment: 0 |
| 36 | adjustsStack: false |
| 37 | hasCalls: false |
| 38 | maxCallFrameSize: 0 |
| 39 | hasOpaqueSPAdjustment: false |
| 40 | hasVAStart: false |
| 41 | hasMustTailInVarArgFunc: false |
| 42 | body: | |
| 43 | bb.0.entry: |
| 44 | liveins: %x3, %x4 |
| 45 | |
| 46 | %r5 = ADDI %r3, 1 |
| 47 | %cr0 = CMPWI %r3, 0 |
| 48 | %r3 = ISEL %r4, %r4, %cr0gt |
| 49 | ; Test fold ISEL to a copy |
| 50 | ; CHECK: %r3 = OR %r4, %r4 |
| 51 | |
| 52 | %x3 = EXTSW_32_64 %r3 |
| 53 | |
| 54 | ... |