# RUN: llc -run-pass=aarch64-ldst-opt -o - -mtriple=aarch64-- %s | FileCheck %s # Check that we merge the MIFlags from both the instructions in the final # instruction. --- name: case11 # CHECK-LABEL: name: case11 body: | bb.0: frame-setup STRWui $w1, $x0, 1 :: (store 4) $w1 = frame-destroy LDRWui $x0, 1 :: (load 4) ; CHECK: frame-setup STRWui ; CHECK-NOT: frame-setup ; CHECK-NEXT: frame-destroy ORRWrs ; No merging happening here, make sure we keep the flags of the previous ; instruction. RET_ReallyLR ... --- name: case12 # CHECK-LABEL: name: case12 body: | bb.0: frame-setup STRWui $w1, $x0, 1 :: (store 4) $w2 = frame-destroy LDRHHui $x0, 2 :: (load 2) ; CHECK: frame-setup STRWui ; CHECK-NOT: frame-setup ; CHECK-NEXT: frame-destroy ANDWri ; No merging happening here, make sure we keep the flags of the previous ; instruction. RET_ReallyLR ... --- name: case13 # CHECK-LABEL: name: case13 body: | bb.0: frame-setup STRWui $w1, $x0, 1 :: (store 4) $w2 = frame-destroy LDRHHui $x0, 3 :: (load 2) ; CHECK: frame-setup STRWui ; CHECK-NOT: frame-setup ; CHECK-NEXT: frame-destroy UBFMWri ; No merging happening here, make sure we keep the flags of the previous ; instruction. RET_ReallyLR ... --- name: case2 # CHECK-LABEL: name: case2 body: | bb.0: frame-setup STRHHui $wzr, $x0, 0 :: (store 4) frame-destroy STRHHui $wzr, $x0, 1 :: (store 4) ; CHECK: frame-setup frame-destroy STRWui RET_ReallyLR ... --- name: case3 # CHECK-LABEL: name: case3 body: | bb.0: $x0 = frame-setup LDRXui $x2, 0 :: (load 8) $x1 = frame-destroy LDRXui $x2, 1 :: (load 8) ; CHECK: frame-setup frame-destroy LDPXi RET_ReallyLR ... --- name: case4 # CHECK-LABEL: name: case4 body: | bb.0: $x26, $x25 = frame-setup LDPXi $sp, 0 $sp = frame-destroy ADDXri $sp, 64, 0 ; CHECK: = frame-setup frame-destroy LDPXpost RET_ReallyLR ... --- name: case41 # CHECK-LABEL: name: case41 body: | bb.0: $x26 = frame-setup LDRXui $sp, 0 $sp = frame-destroy ADDXri $sp, 64, 0 ; CHECK: = frame-setup frame-destroy LDRXpost RET_ReallyLR ...