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- ; RUN: llc -O0 -debug %s -o /dev/null 2>&1 | FileCheck %s --check-prefix=LLC-O0
- ; RUN: llc -O1 -debug %s -o /dev/null 2>&1 | FileCheck %s --check-prefix=LLC-Ox
- ; RUN: llc -O2 -debug %s -o /dev/null 2>&1 | FileCheck %s --check-prefix=LLC-Ox
- ; RUN: llc -O3 -debug %s -o /dev/null 2>&1 | FileCheck %s --check-prefix=LLC-Ox
- ; RUN: llc -misched-postra -debug %s -o /dev/null 2>&1 | FileCheck %s --check-prefix=LLC-MORE
- ; REQUIRES: asserts
- ; This test verifies that we don't run Machine Function optimizations
- ; on optnone functions.
- ; Function Attrs: noinline optnone
- define i32 @_Z3fooi(i32 %x) #0 {
- entry:
- %x.addr = alloca i32, align 4
- store i32 %x, i32* %x.addr, align 4
- br label %while.cond
- while.cond: ; preds = %while.body, %entry
- %0 = load i32, i32* %x.addr, align 4
- %dec = add nsw i32 %0, -1
- store i32 %dec, i32* %x.addr, align 4
- %tobool = icmp ne i32 %0, 0
- br i1 %tobool, label %while.body, label %while.end
- while.body: ; preds = %while.cond
- br label %while.cond
- while.end: ; preds = %while.cond
- ret i32 0
- }
- attributes #0 = { optnone noinline }
- ; Nothing that runs at -O0 gets skipped.
- ; LLC-O0-NOT: Skipping pass
- ; Machine Function passes run at -O1 and higher.
- ; LLC-Ox-DAG: Skipping pass 'Branch Probability Basic Block Placement'
- ; LLC-Ox-DAG: Skipping pass 'CodeGen Prepare'
- ; LLC-Ox-DAG: Skipping pass 'Control Flow Optimizer'
- ; LLC-Ox-DAG: Skipping pass 'Machine code sinking'
- ; LLC-Ox-DAG: Skipping pass 'Machine Common Subexpression Elimination'
- ; LLC-Ox-DAG: Skipping pass 'Machine Copy Propagation Pass'
- ; LLC-Ox-DAG: Skipping pass 'Machine Loop Invariant Code Motion'
- ; LLC-Ox-DAG: Skipping pass 'Merge disjoint stack slots'
- ; LLC-Ox-DAG: Skipping pass 'Optimize machine instruction PHIs'
- ; LLC-Ox-DAG: Skipping pass 'Peephole Optimizations'
- ; LLC-Ox-DAG: Skipping pass 'Post{{.*}}RA{{.*}}{{[Ss]}}cheduler'
- ; LLC-Ox-DAG: Skipping pass 'Remove dead machine instructions'
- ; LLC-Ox-DAG: Skipping pass 'Tail Duplication'
- ; Alternate post-RA scheduler.
- ; LLC-MORE: Skipping pass 'PostRA Machine Instruction Scheduler'
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