expand-isel-9.mir
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# This file tests the scenario: ISEL RX, RY, RY, CR (X != 0 && Y != 0)
# It is folded into a copy (%RX = OR %RY, %RY)
# RUN: llc -ppc-gen-isel=true -run-pass ppc-expand-isel -o - %s | FileCheck %s
--- |
target datalayout = "E-m:e-i64:64-n32:64"
target triple = "powerpc64-unknown-linux-gnu"
define signext i32 @testExpandISEL(i32 signext %i, i32 signext %j) {
entry:
%cmp = icmp sgt i32 %i, 0
%add = add nsw i32 %i, 1
%cond = select i1 %cmp, i32 %add, i32 %j
ret i32 %cond
}
...
---
name: testExpandISEL
alignment: 4
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
tracksRegLiveness: true
liveins:
- { reg: '$x3' }
- { reg: '$x4' }
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, $x4
$r5 = ADDI $r3, 1
$cr0 = CMPWI $r3, 0
$r3 = ISEL $r4, $r4, $cr0gt
; Test fold ISEL to a copy
; CHECK: $r3 = OR $r4, $r4
$x3 = EXTSW_32_64 $r3
...