46 lines · plain
1# RUN: llc -mtriple=x86_64-- -run-pass=regallocfast -o - %s | FileCheck %s2# RUN: llc -mtriple=x86_64-- -passes=regallocfast -o - %s | FileCheck %s3 4# Check that fastregalloc does not displace register assigned to tied def when5# RegMask operand is present. STATEPOINT is an example of such instruction.6# Tied def/use must be assigned to the same register.7---8name: test_relocate9tracksRegLiveness: true10frameInfo:11 adjustsStack: true12body: |13 bb.0.entry:14 liveins: $rdi15 16 ; CHECK: renamable [[REG:\$[a-z0-9]+]] = STATEPOINT 0, 0, 0, target-flags(x86-plt) 0, 2, 0, 2, 0, 2, 0, 2, 1, renamable [[REG]](tied-def 0)17 18 %1:gr64 = COPY $rdi19 ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp20 %1:gr64 = STATEPOINT 0, 0, 0, target-flags(x86-plt) 0, 2, 0, 2, 0, 2, 0, 2, 1, %1(tied-def 0), 2, 0, 2, 1, 0, 0, csr_64, implicit-def $rsp, implicit-def $ssp21 ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp22 $rax = COPY %123 RET 0, killed $rax24...25 26# Same as above but with multiple RegMask operands per instruction.27# These regmasks have no real meaning and chosen to allow only single register to be assignable ($rbp)28---29name: test_relocate_multi_regmasks30tracksRegLiveness: true31frameInfo:32 adjustsStack: true33body: |34 bb.0.entry:35 liveins: $rdi36 37 ; CHECK: renamable $rbp = STATEPOINT 0, 0, 0, target-flags(x86-plt) 0, 2, 0, 2, 0, 2, 0, 2, 1, renamable $rbp(tied-def 0)38 39 %1:gr64 = COPY $rdi40 ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp41 %1:gr64 = STATEPOINT 0, 0, 0, target-flags(x86-plt) 0, 2, 0, 2, 0, 2, 0, 2, 1, %1(tied-def 0), 2, 0, 2, 1, 0, 0, csr_64_rt_allregs, csr_64_cxx_tls_darwin_pe, implicit-def $rsp, implicit-def $ssp42 ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp43 $rax = COPY %144 RET 0, killed $rax45...46