# RUN: llc -march=x86-64 -run-pass none -o - %s | FileCheck %s # This test ensures that the MIR parser parses the save and restore points in # the machine frame info correctly. --- | define i32 @foo(i32 %a, i32 %b) { entry: %tmp = alloca i32, align 4 %tmp2 = icmp slt i32 %a, %b br i1 %tmp2, label %true, label %false true: store i32 %a, i32* %tmp, align 4 %tmp4 = call i32 @doSomething(i32 0, i32* %tmp) br label %false false: %tmp.0 = phi i32 [ %tmp4, %true ], [ %a, %entry ] ret i32 %tmp.0 } declare i32 @doSomething(i32, i32*) ... --- name: foo tracksRegLiveness: true liveins: - { reg: '$edi' } - { reg: '$esi' } # CHECK: frameInfo: # CHECK: savePoint: '%bb.2' # CHECK-NEXT: restorePoint: '%bb.2' # CHECK: stack frameInfo: maxAlignment: 4 hasCalls: true savePoint: '%bb.2' restorePoint: '%bb.2' stack: - { id: 0, name: tmp, offset: 0, size: 4, alignment: 4 } body: | bb.0: successors: %bb.2, %bb.1 liveins: $edi, $esi $eax = COPY $edi CMP32rr $eax, killed $esi, implicit-def $eflags JCC_1 %bb.2, 12, implicit killed $eflags bb.1: successors: %bb.3 liveins: $eax JMP_1 %bb.3 bb.2.true: successors: %bb.3 liveins: $eax MOV32mr %stack.0.tmp, 1, _, 0, _, killed $eax ADJCALLSTACKDOWN64 0, 0, 0, implicit-def $rsp, implicit-def $ssp, implicit-def dead $eflags, implicit $rsp, implicit $ssp $rsi = LEA64r %stack.0.tmp, 1, _, 0, _ $edi = MOV32r0 implicit-def dead $eflags CALL64pcrel32 @doSomething, csr_64, implicit $rsp, implicit $ssp, implicit $edi, implicit $rsi, implicit-def $rsp, implicit-def $ssp, implicit-def $eax ADJCALLSTACKUP64 0, 0, implicit-def $rsp, implicit-def $ssp, implicit-def dead $eflags, implicit $rsp, implicit $ssp bb.3.false: liveins: $eax RETQ $eax ...