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|
# This file tests the scenario: ISEL R0, ZERO, RX, CR (X != 0)
# It also tests redundant liveins (%x7) and killed registers.
# RUN: llc -ppc-gen-isel=false -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: '%x0' }
- { reg: '%x3' }
- { reg: '%x7' }
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: %x0, %x3, %x7
%r5 = ADDI %r3, 1
%cr0 = CMPWI %r3, 0
%r0 = ISEL killed %zero, killed %r5, killed %cr0gt, implicit killed %cr0
; CHECK: BC killed %cr0gt, %[[TRUE:bb.[0-9]+]]
; CHECK: %[[FALSE:bb.[0-9]+]]
; CHECK: %r0 = ORI killed %r5, 0
; CHECK: B %[[SUCCESSOR:bb.[0-9]+]]
; CHECK: [[TRUE]]
; CHECK: %r0 = ADDI killed %zero, 0
%x0 = EXTSW_32_64 killed %r0
...
|
