| ; RUN: llc -verify-machineinstrs -mcpu=pwr7 < %s | FileCheck %s |
| target datalayout = "E-m:e-i64:64-n32:64" |
| target triple = "powerpc64-unknown-linux-gnu" |
| |
| %struct.inode.0.12.120 = type { ptr } |
| %struct.kstat2.1.13.121 = type { i32 } |
| %struct.task_struct.4.16.124 = type { ptr, %struct.atomic_t.2.14.122, ptr } |
| %struct.atomic_t.2.14.122 = type { i32 } |
| %struct.signal_struct.3.15.123 = type { i64 } |
| %struct.pid.5.17.125 = type { ptr } |
| |
| ; Function Attrs: nounwind |
| define signext i32 @proc_task_getattr(ptr nocapture readonly %inode, ptr nocapture %stat) #0 { |
| entry: |
| %call1.i = tail call ptr @get_pid_task(ptr undef, i32 zeroext 0) #0 |
| br i1 undef, label %if.end, label %if.then |
| |
| if.then: ; preds = %entry |
| %0 = load i64, ptr undef, align 8 |
| %conv.i = trunc i64 %0 to i32 |
| %1 = load i32, ptr null, align 4 |
| %add = add i32 %1, %conv.i |
| store i32 %add, ptr null, align 4 |
| %counter.i.i = getelementptr inbounds %struct.task_struct.4.16.124, ptr %call1.i, i64 0, i32 1, i32 0 |
| %2 = tail call i32 asm sideeffect "\09lwsync\0A1:\09lwarx\09$0,0,$1\09\09# atomic_dec_return\0A\09addic\09$0,$0,-1\0A\09stwcx.\09$0,0,$1\0A\09bne-\091b\0A\09sync\0A", "=&r,r,~{cr0},~{xer},~{memory}"(ptr %counter.i.i) #0 |
| %cmp.i = icmp eq i32 %2, 0 |
| br i1 %cmp.i, label %if.then.i, label %if.end |
| |
| ; CHECK-LABEL: @proc_task_getattr |
| ; CHECK-NOT: stwcx. [[REG:[0-9]+]],0,[[REG]] |
| ; CHECK: blr |
| |
| if.then.i: ; preds = %if.then |
| tail call void @foo(ptr %call1.i) #0 |
| unreachable |
| |
| if.end: ; preds = %if.then, %entry |
| ret i32 0 |
| } |
| |
| declare void @foo(ptr) |
| |
| declare ptr @get_pid_task(ptr, i32 zeroext) |
| |
| attributes #0 = { nounwind } |
| |
