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llvm-mirror/test/Other/opt-bisect-legacy-pass-manager.ll
Stella Stamenova f5a62c8af5 [lit, python] Always add quotes around the python path in lit
Summary:
The issue with the python path is that the path to python on Windows can contain spaces. To make the tests always work, the path to python needs to be surrounded by quotes.

This change updates several configuration files which specify the path to python as a substitution and also remove quotes from existing tests.

Reviewers: asmith, zturner, alexshap, jakehehrlich

Reviewed By: zturner, alexshap, jakehehrlich

Subscribers: mehdi_amini, nemanjai, eraman, kbarton, jakehehrlich, steven_wu, dexonsmith, stella.stamenova, delcypher, llvm-commits

Differential Revision: https://reviews.llvm.org/D50206

llvm-svn: 339073
2018-08-06 22:37:44 +00:00

179 lines
7.2 KiB
LLVM

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