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Imported Upstream version 5.18.0.207
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; This file verifies the behavior of the OptBisect class, which is used to
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; diagnose optimization related failures. The tests check various
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; invocations that result in different sets of optimization passes that
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; are run in different ways.
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;
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; This set of tests exercises the legacy pass manager interface to the OptBisect
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; class. Because the exact set of optimizations that will be run may
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; change over time, these tests are written in a more general manner than the
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; corresponding tests for the new pass manager.
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;
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; Don't use NEXT checks or hard-code pass numbering so that this won't fail if
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; new passes are inserted.
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; Verify that the file can be compiled to an object file at -O3 with all
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; skippable passes skipped.
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; REQUIRES: default_triple
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; RUN: opt -O3 -opt-bisect-limit=0 < %s | llc -O3 -opt-bisect-limit=0
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; Verify that no skippable passes are run with -opt-bisect-limit=0.
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; RUN: opt -disable-output -disable-verify -O3 -opt-bisect-limit=0 %s 2>&1 \
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; RUN: | FileCheck %s --check-prefix=CHECK-SKIP-ALL
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; CHECK-SKIP-ALL: BISECT: NOT running pass ({{[0-9]+}})
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; CHECK-SKIP-ALL-NOT: BISECT: running pass ({{[0-9]+}})
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; Verify that no passes run at -O0 are skipped
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; RUN: opt -opt-bisect-limit=0 < %s 2>&1 | FileCheck %s --check-prefix=OPTBISECT-O0
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; OPTBISECT-O0-NOT: BISECT: NOT running
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; FIXME: There are still some AMDGPU passes being skipped that run at -O0.
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; XFAIL: r600, amdgcn
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; Verify that we can use the opt-bisect-helper.py script (derived from
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; utils/bisect) to locate the optimization that inlines the call to
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; f2() in f3().
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; RUN: %python %S/opt-bisect-helper.py --start=0 --end=256 --optcmd=opt \
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; RUN: --filecheckcmd=FileCheck --test=%s \
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; RUN: --prefix=CHECK-BISECT-INLINE-HELPER \
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; RUN: | FileCheck %s --check-prefix=CHECK-BISECT-INLINE-RESULT
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; The helper script uses this to find the optimization that inlines the call.
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; CHECK-BISECT-INLINE-HELPER: call i32 @f2()
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; These checks verifies that the optimization was found.
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; CHECK-BISECT-INLINE-RESULT-NOT: Last good count: 0
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; CHECK-BISECT-INLINE-RESULT: Last good count: {{[0-9]+}}
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; Test a module pass.
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; RUN: opt -disable-output -disable-verify -deadargelim -opt-bisect-limit=-1 %s \
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; RUN: 2>&1 | FileCheck %s --check-prefix=CHECK-DEADARG
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; CHECK-DEADARG: BISECT: running pass ({{[0-9]+}}) Dead Argument Elimination on module
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; RUN: opt -disable-output -disable-verify -deadargelim -opt-bisect-limit=0 %s \
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; RUN: 2>&1 | FileCheck %s --check-prefix=CHECK-NOT-DEADARG
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; CHECK-NOT-DEADARG: BISECT: NOT running pass ({{[0-9]+}}) Dead Argument Elimination on module
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; Test an SCC pass.
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; RUN: opt -disable-output -disable-verify -inline -opt-bisect-limit=-1 %s \
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; RUN: 2>&1 | FileCheck %s --check-prefix=CHECK-INLINE
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; CHECK-INLINE: BISECT: running pass ({{[0-9]+}}) Function Integration/Inlining on SCC (<<null function>>)
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; CHECK-INLINE: BISECT: running pass ({{[0-9]+}}) Function Integration/Inlining on SCC (g)
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; CHECK-INLINE: BISECT: running pass ({{[0-9]+}}) Function Integration/Inlining on SCC (f1)
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; CHECK-INLINE: BISECT: running pass ({{[0-9]+}}) Function Integration/Inlining on SCC (f2)
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; CHECK-INLINE: BISECT: running pass ({{[0-9]+}}) Function Integration/Inlining on SCC (f3)
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; CHECK-INLINE: BISECT: running pass ({{[0-9]+}}) Function Integration/Inlining on SCC (<<null function>>)
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; RUN: opt -disable-output -disable-verify -inline -opt-bisect-limit=0 %s \
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; RUN: 2>&1 | FileCheck %s --check-prefix=CHECK-NOT-INLINE
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; CHECK-NOT-INLINE: BISECT: NOT running pass ({{[0-9]+}}) Function Integration/Inlining on SCC (<<null function>>)
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; CHECK-NOT-INLINE: BISECT: NOT running pass ({{[0-9]+}}) Function Integration/Inlining on SCC (g)
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; CHECK-NOT-INLINE: BISECT: NOT running pass ({{[0-9]+}}) Function Integration/Inlining on SCC (f1)
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; CHECK-NOT-INLINE: BISECT: NOT running pass ({{[0-9]+}}) Function Integration/Inlining on SCC (f2)
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; CHECK-NOT-INLINE: BISECT: NOT running pass ({{[0-9]+}}) Function Integration/Inlining on SCC (f3)
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; CHECK-NOT-INLINE: BISECT: NOT running pass ({{[0-9]+}}) Function Integration/Inlining on SCC (<<null function>>)
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; Test a function pass.
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; RUN: opt -disable-output -disable-verify -early-cse -opt-bisect-limit=-1 \
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; RUN: %s 2>&1 | FileCheck %s --check-prefix=CHECK-EARLY-CSE
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; CHECK-EARLY-CSE: BISECT: running pass ({{[0-9]+}}) Early CSE on function (f1)
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; CHECK-EARLY-CSE: BISECT: running pass ({{[0-9]+}}) Early CSE on function (f2)
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; CHECK-EARLY-CSE: BISECT: running pass ({{[0-9]+}}) Early CSE on function (f3)
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; RUN: opt -disable-output -disable-verify -early-cse -opt-bisect-limit=0 %s \
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; RUN: 2>&1 | FileCheck %s --check-prefix=CHECK-NOT-EARLY-CSE
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; CHECK-NOT-EARLY-CSE: BISECT: NOT running pass ({{[0-9]+}}) Early CSE on function (f1)
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; CHECK-NOT-EARLY-CSE: BISECT: NOT running pass ({{[0-9]+}}) Early CSE on function (f2)
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; CHECK-NOT-EARLY-CSE: BISECT: NOT running pass ({{[0-9]+}}) Early CSE on function (f3)
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; Test a loop pass.
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; RUN: opt -disable-output -disable-verify -loop-reduce -opt-bisect-limit=-1 \
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; RUN: %s 2>&1 | FileCheck %s --check-prefix=CHECK-LOOP-REDUCE
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; CHECK-LOOP-REDUCE: BISECT: running pass ({{[0-9]+}}) Loop Strength Reduction on loop
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; CHECK-LOOP-REDUCE: BISECT: running pass ({{[0-9]+}}) Loop Strength Reduction on loop
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; CHECK-LOOP-REDUCE: BISECT: running pass ({{[0-9]+}}) Loop Strength Reduction on loop
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; CHECK-LOOP-REDUCE: BISECT: running pass ({{[0-9]+}}) Loop Strength Reduction on loop
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; CHECK-LOOP-REDUCE: BISECT: running pass ({{[0-9]+}}) Loop Strength Reduction on loop
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; RUN: opt -disable-output -disable-verify -loop-reduce -opt-bisect-limit=0 \
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; RUN: %s 2>&1 | FileCheck %s --check-prefix=CHECK-NOT-LOOP-REDUCE
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; CHECK-NOT-LOOP-REDUCE: BISECT: NOT running pass ({{[0-9]+}}) Loop Strength Reduction on loop
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; CHECK-NOT-LOOP-REDUCE: BISECT: NOT running pass ({{[0-9]+}}) Loop Strength Reduction on loop
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; CHECK-NOT-LOOP-REDUCE: BISECT: NOT running pass ({{[0-9]+}}) Loop Strength Reduction on loop
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; CHECK-NOT-LOOP-REDUCE: BISECT: NOT running pass ({{[0-9]+}}) Loop Strength Reduction on loop
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; CHECK-NOT-LOOP-REDUCE: BISECT: NOT running pass ({{[0-9]+}}) Loop Strength Reduction on loop
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declare i32 @g()
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define void @f1() {
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entry:
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br label %loop.0
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loop.0:
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br i1 undef, label %loop.0.0, label %loop.1
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loop.0.0:
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br i1 undef, label %loop.0.0, label %loop.0.1
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loop.0.1:
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br i1 undef, label %loop.0.1, label %loop.0
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loop.1:
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br i1 undef, label %loop.1, label %loop.1.bb1
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loop.1.bb1:
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br i1 undef, label %loop.1, label %loop.1.bb2
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loop.1.bb2:
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br i1 undef, label %end, label %loop.1.0
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loop.1.0:
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br i1 undef, label %loop.1.0, label %loop.1
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end:
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ret void
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}
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define i32 @f2() {
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entry:
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ret i32 0
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}
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define i32 @f3() {
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entry:
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%temp = call i32 @g()
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%icmp = icmp ugt i32 %temp, 2
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br i1 %icmp, label %bb.true, label %bb.false
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bb.true:
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%temp2 = call i32 @f2()
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ret i32 %temp2
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bb.false:
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ret i32 0
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}
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; This function is here to verify that opt-bisect can skip all passes for
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; functions that contain lifetime intrinsics.
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define void @f4() {
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entry:
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%i = alloca i32, align 4
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%tmp = bitcast i32* %i to i8*
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call void @llvm.lifetime.start(i64 4, i8* %tmp)
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br label %for.cond
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for.cond:
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br i1 undef, label %for.body, label %for.end
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for.body:
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br label %for.cond
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for.end:
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ret void
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}
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declare void @llvm.lifetime.start(i64, i8* nocapture)
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