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[PowerPC] Add tests for select patterns. NFC.

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This commit is contained in:
Kai Luo 2020-09-28 06:11:40 +00:00
parent 546a7d793e
commit e87c3b7d7a
1 changed files with 66 additions and 0 deletions
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test/CodeGen/PowerPC/select.ll Normal file
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -ppc-asm-full-reg-names -verify-machineinstrs \
; RUN: -mtriple=powerpc64le-linux-gnu < %s | FileCheck \
; RUN: -check-prefix=CHECK-LE %s
define i64 @f0(i64 %x) {
; CHECK-LE-LABEL: f0:
; CHECK-LE: # %bb.0:
; CHECK-LE-NEXT: li r4, 125
; CHECK-LE-NEXT: cmpdi r3, 0
; CHECK-LE-NEXT: li r3, -3
; CHECK-LE-NEXT: isellt r3, r3, r4
; CHECK-LE-NEXT: blr
%c = icmp slt i64 %x, 0
%r = select i1 %c, i64 -3, i64 125
ret i64 %r
}
define i64 @f1(i64 %x) {
; CHECK-LE-LABEL: f1:
; CHECK-LE: # %bb.0:
; CHECK-LE-NEXT: li r4, 512
; CHECK-LE-NEXT: cmpdi r3, 0
; CHECK-LE-NEXT: li r3, 64
; CHECK-LE-NEXT: isellt r3, r3, r4
; CHECK-LE-NEXT: blr
%c = icmp slt i64 %x, 0
%r = select i1 %c, i64 64, i64 512
ret i64 %r
}
define i64 @f2(i64 %x) {
; CHECK-LE-LABEL: f2:
; CHECK-LE: # %bb.0:
; CHECK-LE-NEXT: li r4, 1024
; CHECK-LE-NEXT: cmpdi r3, 0
; CHECK-LE-NEXT: iseleq r3, 0, r4
; CHECK-LE-NEXT: blr
%c = icmp eq i64 %x, 0
%r = select i1 %c, i64 0, i64 1024
ret i64 %r
}
define i64 @f3(i64 %x, i64 %y) {
; CHECK-LE-LABEL: f3:
; CHECK-LE: # %bb.0:
; CHECK-LE-NEXT: cmpldi r3, 0
; CHECK-LE-NEXT: iseleq r3, 0, r4
; CHECK-LE-NEXT: blr
%c = icmp eq i64 %x, 0
%r = select i1 %c, i64 0, i64 %y
ret i64 %r
}
define i64 @f4(i64 %x) {
; CHECK-LE-LABEL: f4:
; CHECK-LE: # %bb.0:
; CHECK-LE-NEXT: neg r4, r3
; CHECK-LE-NEXT: cmpdi r3, 0
; CHECK-LE-NEXT: iselgt r3, r4, r3
; CHECK-LE-NEXT: blr
%c = icmp sgt i64 %x, 0
%x.neg = sub i64 0, %x
%r = select i1 %c, i64 %x.neg, i64 %x
ret i64 %r
}