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1; RUN: opt     -S -debug %s 2>&1 | FileCheck %s --check-prefix=OPT-O0
2; RUN: opt -O1 -S -debug %s 2>&1 | FileCheck %s --check-prefix=OPT-O1
3; RUN: opt -O2 -S -debug %s 2>&1 | FileCheck %s --check-prefix=OPT-O1 --check-prefix=OPT-O2O3
4; RUN: opt -O3 -S -debug %s 2>&1 | FileCheck %s --check-prefix=OPT-O1 --check-prefix=OPT-O2O3
5; RUN: opt -bb-vectorize -dce -die -loweratomic -S -debug %s 2>&1 | FileCheck %s --check-prefix=OPT-MORE
6; RUN: opt -indvars -licm -loop-deletion -loop-extract -loop-idiom -loop-instsimplify -loop-reduce -loop-reroll -loop-rotate -loop-unroll -loop-unswitch -S -debug %s 2>&1 | FileCheck %s --check-prefix=OPT-LOOP
7
8; REQUIRES: asserts
9
10; This test verifies that we don't run target independent IR-level
11; optimizations on optnone functions.
12
13; Function Attrs: noinline optnone
14define i32 @_Z3fooi(i32 %x) #0 {
15entry:
16  %x.addr = alloca i32, align 4
17  store i32 %x, i32* %x.addr, align 4
18  br label %while.cond
19
20while.cond:                                       ; preds = %while.body, %entry
21  %0 = load i32, i32* %x.addr, align 4
22  %dec = add nsw i32 %0, -1
23  store i32 %dec, i32* %x.addr, align 4
24  %tobool = icmp ne i32 %0, 0
25  br i1 %tobool, label %while.body, label %while.end
26
27while.body:                                       ; preds = %while.cond
28  br label %while.cond
29
30while.end:                                        ; preds = %while.cond
31  ret i32 0
32}
33
34attributes #0 = { optnone noinline }
35
36; Nothing that runs at -O0 gets skipped.
37; OPT-O0-NOT: Skipping pass
38
39; IR passes run at -O1 and higher.
40; OPT-O1-DAG: Skipping pass 'Aggressive Dead Code Elimination'
41; OPT-O1-DAG: Skipping pass 'Combine redundant instructions'
42; OPT-O1-DAG: Skipping pass 'Dead Store Elimination'
43; OPT-O1-DAG: Skipping pass 'Early CSE'
44; OPT-O1-DAG: Skipping pass 'Jump Threading'
45; OPT-O1-DAG: Skipping pass 'MemCpy Optimization'
46; OPT-O1-DAG: Skipping pass 'Reassociate expressions'
47; OPT-O1-DAG: Skipping pass 'Simplify the CFG'
48; OPT-O1-DAG: Skipping pass 'Sparse Conditional Constant Propagation'
49; OPT-O1-DAG: Skipping pass 'SROA'
50; OPT-O1-DAG: Skipping pass 'Tail Call Elimination'
51; OPT-O1-DAG: Skipping pass 'Value Propagation'
52
53; Additional IR passes run at -O2 and higher.
54; OPT-O2O3-DAG: Skipping pass 'Global Value Numbering'
55; OPT-O2O3-DAG: Skipping pass 'SLP Vectorizer'
56
57; Additional IR passes that opt doesn't turn on by default.
58; OPT-MORE-DAG: Skipping pass 'Basic-Block Vectorization'
59; OPT-MORE-DAG: Skipping pass 'Dead Code Elimination'
60; OPT-MORE-DAG: Skipping pass 'Dead Instruction Elimination'
61; OPT-MORE-DAG: Skipping pass 'Lower atomic intrinsics
62
63; Loop IR passes that opt doesn't turn on by default.
64; OPT-LOOP-DAG: Skipping pass 'Delete dead loops'
65; OPT-LOOP-DAG: Skipping pass 'Extract loops into new functions'
66; OPT-LOOP-DAG: Skipping pass 'Induction Variable Simplification'
67; OPT-LOOP-DAG: Skipping pass 'Loop Invariant Code Motion'
68; OPT-LOOP-DAG: Skipping pass 'Loop Strength Reduction'
69; OPT-LOOP-DAG: Skipping pass 'Recognize loop idioms'
70; OPT-LOOP-DAG: Skipping pass 'Reroll loops'
71; OPT-LOOP-DAG: Skipping pass 'Rotate Loops'
72; OPT-LOOP-DAG: Skipping pass 'Simplify instructions in loops'
73; OPT-LOOP-DAG: Skipping pass 'Unroll loops'
74; OPT-LOOP-DAG: Skipping pass 'Unswitch loops'
75