1# RUN: llc -run-pass=aarch64-ldst-opt -o - -mtriple=aarch64-- %s | FileCheck %s 2# Check that we merge the MIFlags from both the instructions in the final 3# instruction. 4--- 5name: case11 6# CHECK-LABEL: name: case11 7body: | 8 bb.0: 9 frame-setup STRWui $w1, $x0, 1 :: (store 4) 10 $w1 = frame-destroy LDRWui $x0, 1 :: (load 4) 11 12 ; CHECK: frame-setup STRWui 13 ; CHECK-NOT: frame-setup 14 ; CHECK-NEXT: frame-destroy ORRWrs 15 ; No merging happening here, make sure we keep the flags of the previous 16 ; instruction. 17 RET_ReallyLR 18 19... 20--- 21name: case12 22# CHECK-LABEL: name: case12 23body: | 24 bb.0: 25 frame-setup STRWui $w1, $x0, 1 :: (store 4) 26 $w2 = frame-destroy LDRHHui $x0, 2 :: (load 2) 27 28 ; CHECK: frame-setup STRWui 29 ; CHECK-NOT: frame-setup 30 ; CHECK-NEXT: frame-destroy ANDWri 31 ; No merging happening here, make sure we keep the flags of the previous 32 ; instruction. 33 RET_ReallyLR 34 35... 36--- 37name: case13 38# CHECK-LABEL: name: case13 39body: | 40 bb.0: 41 frame-setup STRWui $w1, $x0, 1 :: (store 4) 42 $w2 = frame-destroy LDRHHui $x0, 3 :: (load 2) 43 44 ; CHECK: frame-setup STRWui 45 ; CHECK-NOT: frame-setup 46 ; CHECK-NEXT: frame-destroy UBFMWri 47 ; No merging happening here, make sure we keep the flags of the previous 48 ; instruction. 49 RET_ReallyLR 50 51... 52--- 53name: case2 54# CHECK-LABEL: name: case2 55body: | 56 bb.0: 57 frame-setup STRHHui $wzr, $x0, 0 :: (store 4) 58 frame-destroy STRHHui $wzr, $x0, 1 :: (store 4) 59 60 ; CHECK: frame-setup frame-destroy STRWui 61 RET_ReallyLR 62 63... 64--- 65name: case3 66# CHECK-LABEL: name: case3 67body: | 68 bb.0: 69 70 $x0 = frame-setup LDRXui $x2, 0 :: (load 8) 71 $x1 = frame-destroy LDRXui $x2, 1 :: (load 8) 72 73 ; CHECK: frame-setup frame-destroy LDPXi 74 RET_ReallyLR 75... 76--- 77name: case4 78# CHECK-LABEL: name: case4 79body: | 80 bb.0: 81 $x26, $x25 = frame-setup LDPXi $sp, 0 82 $sp = frame-destroy ADDXri $sp, 64, 0 83 84 ; CHECK: = frame-setup frame-destroy LDPXpost 85 RET_ReallyLR 86 87... 88--- 89name: case41 90# CHECK-LABEL: name: case41 91body: | 92 bb.0: 93 $x26 = frame-setup LDRXui $sp, 0 94 $sp = frame-destroy ADDXri $sp, 64, 0 95 96 ; CHECK: = frame-setup frame-destroy LDRXpost 97 RET_ReallyLR 98 99... 100