60 lines
2.1 KiB
Plaintext
60 lines
2.1 KiB
Plaintext
|
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
|
||
|
|
# RUN: llc -mtriple aarch64 -run-pass=aarch64-postlegalizer-combiner -verify-machineinstrs %s -o - | FileCheck %s
|
||
|
|
---
|
||
|
|
name: test_combine_sext_trunc_of_sextload
|
||
|
|
legalized: true
|
||
|
|
tracksRegLiveness: true
|
||
|
|
body: |
|
||
|
|
bb.0.entry:
|
||
|
|
liveins: $x0
|
||
|
|
; CHECK-LABEL: name: test_combine_sext_trunc_of_sextload
|
||
|
|
; CHECK: liveins: $x0
|
||
|
|
; CHECK: [[COPY:%[0-9]+]]:_(p0) = COPY $x0
|
||
|
|
; CHECK: [[SEXTLOAD:%[0-9]+]]:_(s64) = G_SEXTLOAD [[COPY]](p0) :: (load 2)
|
||
|
|
; CHECK: [[TRUNC:%[0-9]+]]:_(s32) = G_TRUNC [[SEXTLOAD]](s64)
|
||
|
|
; CHECK: $w0 = COPY [[TRUNC]](s32)
|
||
|
|
%0:_(p0) = COPY $x0
|
||
|
|
%1:_(s64) = G_SEXTLOAD %0:_(p0) :: (load 2)
|
||
|
|
%2:_(s32) = G_TRUNC %1:_(s64)
|
||
|
|
%3:_(s32) = G_SEXT_INREG %2:_(s32), 16
|
||
|
|
$w0 = COPY %3(s32)
|
||
|
|
...
|
||
|
|
---
|
||
|
|
name: test_combine_sext_of_sextload
|
||
|
|
legalized: true
|
||
|
|
tracksRegLiveness: true
|
||
|
|
body: |
|
||
|
|
bb.0.entry:
|
||
|
|
liveins: $x0
|
||
|
|
; CHECK-LABEL: name: test_combine_sext_of_sextload
|
||
|
|
; CHECK: liveins: $x0
|
||
|
|
; CHECK: [[COPY:%[0-9]+]]:_(p0) = COPY $x0
|
||
|
|
; CHECK: [[SEXTLOAD:%[0-9]+]]:_(s32) = G_SEXTLOAD [[COPY]](p0) :: (load 2)
|
||
|
|
; CHECK: $w0 = COPY [[SEXTLOAD]](s32)
|
||
|
|
%0:_(p0) = COPY $x0
|
||
|
|
%1:_(s32) = G_SEXTLOAD %0:_(p0) :: (load 2)
|
||
|
|
%2:_(s32) = COPY %1:_(s32)
|
||
|
|
%3:_(s32) = G_SEXT_INREG %2:_(s32), 16
|
||
|
|
$w0 = COPY %3(s32)
|
||
|
|
...
|
||
|
|
---
|
||
|
|
name: test_combine_sext_of_sextload_not_matching
|
||
|
|
legalized: true
|
||
|
|
tracksRegLiveness: true
|
||
|
|
body: |
|
||
|
|
bb.0.entry:
|
||
|
|
liveins: $x0
|
||
|
|
; Here we're trying to extend from a smaller value than was extended in the load.
|
||
|
|
; CHECK-LABEL: name: test_combine_sext_of_sextload_not_matching
|
||
|
|
; CHECK: liveins: $x0
|
||
|
|
; CHECK: [[COPY:%[0-9]+]]:_(p0) = COPY $x0
|
||
|
|
; CHECK: [[SEXTLOAD:%[0-9]+]]:_(s32) = G_SEXTLOAD [[COPY]](p0) :: (load 2)
|
||
|
|
; CHECK: [[SEXT_INREG:%[0-9]+]]:_(s32) = G_SEXT_INREG [[SEXTLOAD]], 24
|
||
|
|
; CHECK: $w0 = COPY [[SEXT_INREG]](s32)
|
||
|
|
%0:_(p0) = COPY $x0
|
||
|
|
%1:_(s32) = G_SEXTLOAD %0:_(p0) :: (load 2)
|
||
|
|
%2:_(s32) = COPY %1:_(s32)
|
||
|
|
%3:_(s32) = G_SEXT_INREG %2:_(s32), 24
|
||
|
|
$w0 = COPY %3(s32)
|
||
|
|
...
|