| Paul Robinson | 7c99ec5 | 2014-03-31 17:43:35 +0000 | [diff] [blame] | 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 |
| 6 | |
| 7 | ; REQUIRES: asserts |
| 8 | |
| 9 | ; This test verifies that we don't run Machine Function optimizations |
| 10 | ; on optnone functions. |
| 11 | |
| 12 | ; Function Attrs: noinline optnone |
| 13 | define i32 @_Z3fooi(i32 %x) #0 { |
| 14 | entry: |
| 15 | %x.addr = alloca i32, align 4 |
| 16 | store i32 %x, i32* %x.addr, align 4 |
| 17 | br label %while.cond |
| 18 | |
| 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 |
| 25 | |
| 26 | while.body: ; preds = %while.cond |
| 27 | br label %while.cond |
| 28 | |
| 29 | while.end: ; preds = %while.cond |
| 30 | ret i32 0 |
| 31 | } |
| 32 | |
| 33 | attributes #0 = { optnone noinline } |
| 34 | |
| 35 | ; Nothing that runs at -O0 gets skipped. |
| 36 | ; LLC-O0-NOT: Skipping pass |
| 37 | |
| 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' |
| Chad Rosier | ce65c06 | 2014-09-13 03:23:23 +0000 | [diff] [blame] | 49 | ; LLC-Ox-DAG: Skipping pass 'Post{{.*}}RA{{.*}}{{[Ss]}}cheduler' |
| Paul Robinson | 7c99ec5 | 2014-03-31 17:43:35 +0000 | [diff] [blame] | 50 | ; LLC-Ox-DAG: Skipping pass 'Remove dead machine instructions' |
| 51 | ; LLC-Ox-DAG: Skipping pass 'Tail Duplication' |
| 52 | |
| 53 | ; Alternate post-RA scheduler. |
| 54 | ; LLC-MORE: Skipping pass 'PostRA Machine Instruction Scheduler' |