1 ; RUN: llc -O0 -debug %s -o /dev/null 2>&1 | FileCheck %s --check-prefix=LLC-O0
2 ; RUN: llc -O1 -debug %s -o /dev/null 2>&1 | FileCheck %s --check-prefix=LLC-Ox
3 ; RUN: llc -O2 -debug %s -o /dev/null 2>&1 | FileCheck %s --check-prefix=LLC-Ox
4 ; RUN: llc -O3 -debug %s -o /dev/null 2>&1 | FileCheck %s --check-prefix=LLC-Ox
5 ; RUN: llc -misched-postra -debug %s -o /dev/null 2>&1 | FileCheck %s --check-prefix=LLC-MORE
9 ; This test verifies that we don't run Machine Function optimizations
10 ; on optnone functions.
12 ; Function Attrs: noinline optnone
13 define i32 @_Z3fooi(i32 %x) #0 {
15 %x.addr = alloca i32, align 4
16 store i32 %x, i32* %x.addr, align 4
19 while.cond: ; preds = %while.body, %entry
20 %0 = load i32* %x.addr, align 4
21 %dec = add nsw i32 %0, -1
22 store i32 %dec, i32* %x.addr, align 4
23 %tobool = icmp ne i32 %0, 0
24 br i1 %tobool, label %while.body, label %while.end
26 while.body: ; preds = %while.cond
29 while.end: ; preds = %while.cond
33 attributes #0 = { optnone noinline }
35 ; Nothing that runs at -O0 gets skipped.
36 ; LLC-O0-NOT: Skipping pass
38 ; Machine Function passes run at -O1 and higher.
39 ; LLC-Ox-DAG: Skipping pass 'Branch Probability Basic Block Placement'
40 ; LLC-Ox-DAG: Skipping pass 'CodeGen Prepare'
41 ; LLC-Ox-DAG: Skipping pass 'Control Flow Optimizer'
42 ; LLC-Ox-DAG: Skipping pass 'Machine code sinking'
43 ; LLC-Ox-DAG: Skipping pass 'Machine Common Subexpression Elimination'
44 ; LLC-Ox-DAG: Skipping pass 'Machine Copy Propagation Pass'
45 ; LLC-Ox-DAG: Skipping pass 'Machine Loop Invariant Code Motion'
46 ; LLC-Ox-DAG: Skipping pass 'Merge disjoint stack slots'
47 ; LLC-Ox-DAG: Skipping pass 'Optimize machine instruction PHIs'
48 ; LLC-Ox-DAG: Skipping pass 'Peephole Optimizations'
49 ; LLC-Ox-DAG: Skipping pass 'Post{{.*}}RA{{.*}}{{[Ss]}}cheduler'
50 ; LLC-Ox-DAG: Skipping pass 'Remove dead machine instructions'
51 ; LLC-Ox-DAG: Skipping pass 'Tail Duplication'
53 ; Alternate post-RA scheduler.
54 ; LLC-MORE: Skipping pass 'PostRA Machine Instruction Scheduler'