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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple aarch64 -run-pass=aarch64-prelegalizer-combiner -global-isel -verify-machineinstrs %s -o - | FileCheck %s
---
name: test
alignment: 4
tracksRegLiveness: true
body: |
bb.1:
; CHECK-LABEL: name: test
; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1
; CHECK-NEXT: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 -2147483647
; CHECK-NEXT: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 31
; CHECK-NEXT: [[UMULH:%[0-9]+]]:_(s32) = G_UMULH [[C]], [[C1]]
; CHECK-NEXT: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UMULH]], [[C2]](s32)
; CHECK-NEXT: [[UREM:%[0-9]+]]:_(s32) = G_UREM [[C]], [[C]]
; CHECK-NEXT: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[UREM]](s32)
; CHECK-NEXT: [[ZEXT:%[0-9]+]]:_(s64) = G_ZEXT [[LSHR]](s32)
; CHECK-NEXT: [[SEXT:%[0-9]+]]:_(s64) = G_SEXT [[TRUNC]](s8)
; CHECK-NEXT: [[OR:%[0-9]+]]:_(s64) = G_OR [[ZEXT]], [[SEXT]]
; CHECK-NEXT: [[TRUNC1:%[0-9]+]]:_(s32) = G_TRUNC [[OR]](s64)
; CHECK-NEXT: $w0 = COPY [[TRUNC1]](s32)
; CHECK-NEXT: RET_ReallyLR implicit $w0
%0:_(s16) = G_CONSTANT i16 0
%2:_(s1) = G_CONSTANT i1 true
%1:_(s1) = G_ICMP intpred(sge), %0(s16), %0
%3:_(s8) = G_SEXT %2(s1)
%4:_(s32) = G_SEXT %3(s8)
%5:_(s32) = G_SEXT %1(s1)
%6:_(s32) = G_UDIV %4, %5
%7:_(s32) = COPY %5(s32)
%8:_(s32) = G_SEXT %2(s1)
%9:_(s32) = G_UREM %7, %8
%10:_(s8) = G_TRUNC %9(s32)
%11:_(s64) = G_ZEXT %6(s32)
%12:_(s64) = G_SEXT %10(s8)
%13:_(s64) = G_OR %11, %12
%14:_(s32) = G_TRUNC %13(s64)
$w0 = COPY %14(s32)
RET_ReallyLR implicit $w0
...
# Check with the div and rem the other way around
---
name: test_inverted_div_rem
alignment: 4
tracksRegLiveness: true
body: |
bb.1:
; CHECK-LABEL: name: test_inverted_div_rem
; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1
; CHECK-NEXT: [[UDIVREM:%[0-9]+]]:_(s32), [[UDIVREM1:%[0-9]+]]:_ = G_UDIVREM [[C]], [[C]]
; CHECK-NEXT: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[UDIVREM]](s32)
; CHECK-NEXT: [[ZEXT:%[0-9]+]]:_(s64) = G_ZEXT [[UDIVREM1]](s32)
; CHECK-NEXT: [[SEXT:%[0-9]+]]:_(s64) = G_SEXT [[TRUNC]](s8)
; CHECK-NEXT: [[OR:%[0-9]+]]:_(s64) = G_OR [[ZEXT]], [[SEXT]]
; CHECK-NEXT: [[TRUNC1:%[0-9]+]]:_(s32) = G_TRUNC [[OR]](s64)
; CHECK-NEXT: $w0 = COPY [[TRUNC1]](s32)
; CHECK-NEXT: RET_ReallyLR implicit $w0
%0:_(s16) = G_CONSTANT i16 0
%2:_(s1) = G_CONSTANT i1 true
%1:_(s1) = G_ICMP intpred(sge), %0(s16), %0
%3:_(s8) = G_SEXT %2(s1)
%4:_(s32) = G_SEXT %3(s8)
%5:_(s32) = G_SEXT %1(s1)
%6:_(s32) = G_UREM %4, %5
%7:_(s32) = COPY %5(s32)
%8:_(s32) = G_SEXT %2(s1)
%9:_(s32) = G_UDIV %7, %8
%10:_(s8) = G_TRUNC %9(s32)
%11:_(s64) = G_ZEXT %6(s32)
%12:_(s64) = G_SEXT %10(s8)
%13:_(s64) = G_OR %11, %12
%14:_(s32) = G_TRUNC %13(s64)
$w0 = COPY %14(s32)
RET_ReallyLR implicit $w0
...
|
