| # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py |
| # RUN: llc -mtriple aarch64-unknown-unknown -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s |
| ... |
| --- |
| name: fold_trunc |
| alignment: 4 |
| legalized: true |
| regBankSelected: true |
| tracksRegLiveness: true |
| body: | |
| ; CHECK-LABEL: name: fold_trunc |
| ; CHECK: bb.0: |
| ; CHECK: successors: %bb.0(0x40000000), %bb.1(0x40000000) |
| ; CHECK: liveins: $x0 |
| ; CHECK: %copy:gpr64all = COPY $x0 |
| ; CHECK: [[COPY:%[0-9]+]]:gpr32all = COPY %copy.sub_32 |
| ; CHECK: [[COPY1:%[0-9]+]]:gpr32 = COPY [[COPY]] |
| ; CHECK: TBNZW [[COPY1]], 3, %bb.1 |
| ; CHECK: B %bb.0 |
| ; CHECK: bb.1: |
| ; CHECK: RET_ReallyLR |
| bb.0: |
| successors: %bb.0, %bb.1 |
| liveins: $x0 |
| %copy:gpr(s64) = COPY $x0 |
| %bit:gpr(s32) = G_CONSTANT i32 8 |
| %zero:gpr(s32) = G_CONSTANT i32 0 |
| %fold_me:gpr(s32) = G_TRUNC %copy(s64) |
| %and:gpr(s32) = G_AND %fold_me, %bit |
| %cmp:gpr(s32) = G_ICMP intpred(ne), %and(s32), %zero |
| %cmp_trunc:gpr(s1) = G_TRUNC %cmp(s32) |
| G_BRCOND %cmp_trunc(s1), %bb.1 |
| G_BR %bb.0 |
| bb.1: |
| RET_ReallyLR |
