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# This file tests the scenario: ISEL RX, RX, RX, CR (X != 0),
# which is redudant and removed.
# 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: 2
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
tracksRegLiveness: true
liveins:
- { reg: '%x3' }
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
%r5 = ADDI %r3, 1
%cr0 = CMPWI %r3, 0
%r3 = ISEL %r3, %r3, %cr0gt
%x3 = EXTSW_32_64 %r3
; CHECK: %r5 = ADDI %r3, 1
; CHECK: %cr0 = CMPWI %r3, 0
; CHECK-NOT: %r3 = ISEL %r3, %r3, %cr0gt
; CHECK: %x3 = EXTSW_32_64 %r3
...
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