derek.holloway
7502bf64a4
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173 lines
7.1 KiB
LLVM
173 lines
7.1 KiB
LLVM
; 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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; Because the exact set of optimizations that will be run is expected to
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; change over time, the checks for disabling passes are written in a
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; conservative way that avoids assumptions about which specific passes
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; will be disabled.
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; RUN: opt -disable-output -disable-verify \
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; RUN: -passes=inferattrs -opt-bisect-limit=-1 %s 2>&1 \
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; RUN: | FileCheck %s --check-prefix=CHECK-MODULE-PASS
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; CHECK-MODULE-PASS: BISECT: running pass (1) inferattrs on [module]
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; RUN: opt -disable-output -disable-verify \
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; RUN: -passes=inferattrs -opt-bisect-limit=0 %s 2>&1 \
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; RUN: | FileCheck %s --check-prefix=CHECK-LIMIT-MODULE-PASS
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; CHECK-LIMIT-MODULE-PASS: BISECT: NOT running pass (1) inferattrs on [module]
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; RUN: opt -disable-output -debug-pass-manager \
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; RUN: -passes=inferattrs -opt-bisect-limit=-1 %s 2>&1 \
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; RUN: | FileCheck %s --check-prefix=CHECK-REQUIRED-PASS
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; CHECK-REQUIRED-PASS: BISECT: running pass (1) inferattrs on [module]
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; CHECK-REQUIRED-PASS-NOT: BISECT: {{.*}}VerifierPass
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; CHECK-REQUIRED-PASS: Running pass: VerifierPass
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; RUN: opt -disable-output -debug-pass-manager \
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; RUN: -passes=inferattrs -opt-bisect-limit=0 %s 2>&1 \
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; RUN: | FileCheck %s --check-prefix=CHECK-LIMIT-REQUIRED-PASS
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; CHECK-LIMIT-REQUIRED-PASS: BISECT: NOT running pass (1) inferattrs on [module]
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; CHECK-LIMIT-REQUIRED-PASS-NOT: BISECT: {{.*}}VerifierPass
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; CHECK-LIMIT-REQUIRED-PASS: Running pass: VerifierPass
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; RUN: opt -disable-output -disable-verify \
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; RUN: -passes=early-cse -opt-bisect-limit=-1 %s 2>&1 \
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; RUN: | FileCheck %s --check-prefix=CHECK-FUNCTION-PASS
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; CHECK-FUNCTION-PASS: BISECT: running pass (1) early-cse on f1
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; CHECK-FUNCTION-PASS: BISECT: running pass (2) early-cse on f2
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; CHECK-FUNCTION-PASS: BISECT: running pass (3) early-cse on f3
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; CHECK-FUNCTION-PASS: BISECT: running pass (4) early-cse on f4
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; RUN: opt -disable-output -disable-verify \
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; RUN: -passes=early-cse -opt-bisect-limit=2 %s 2>&1 \
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; RUN: | FileCheck %s --check-prefix=CHECK-LIMIT-FUNCTION-PASS
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; CHECK-LIMIT-FUNCTION-PASS: BISECT: running pass (1) early-cse on f1
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; CHECK-LIMIT-FUNCTION-PASS: BISECT: running pass (2) early-cse on f2
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; CHECK-LIMIT-FUNCTION-PASS: BISECT: NOT running pass (3) early-cse on f3
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; CHECK-LIMIT-FUNCTION-PASS: BISECT: NOT running pass (4) early-cse on f4
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; RUN: opt -disable-output -disable-verify \
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; RUN: -passes=function-attrs -opt-bisect-limit=-1 %s 2>&1 \
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; RUN: | FileCheck %s --check-prefix=CHECK-CGSCC-PASS
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; CHECK-CGSCC-PASS: BISECT: running pass (1) function-attrs on (f1)
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; CHECK-CGSCC-PASS: BISECT: running pass (2) function-attrs on (f2)
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; CHECK-CGSCC-PASS: BISECT: running pass (3) function-attrs on (f3)
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; CHECK-CGSCC-PASS: BISECT: running pass (4) function-attrs on (f4)
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; RUN: opt -disable-output -disable-verify \
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; RUN: -passes=function-attrs -opt-bisect-limit=3 %s 2>&1 \
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; RUN: | FileCheck %s --check-prefix=CHECK-LIMIT-CGSCC-PASS
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; CHECK-LIMIT-CGSCC-PASS: BISECT: running pass (1) function-attrs on (f1)
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; CHECK-LIMIT-CGSCC-PASS: BISECT: running pass (2) function-attrs on (f2)
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; CHECK-LIMIT-CGSCC-PASS: BISECT: running pass (3) function-attrs on (f3)
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; CHECK-LIMIT-CGSCC-PASS: BISECT: NOT running pass (4) function-attrs on (f4)
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; RUN: opt -disable-output -disable-verify -opt-bisect-limit=-1 \
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; RUN: -passes='inferattrs,cgscc(function-attrs,function(early-cse))' %s 2>&1 \
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; RUN: | FileCheck %s --check-prefix=CHECK-MULTI-PASS
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; CHECK-MULTI-PASS: BISECT: running pass (1) inferattrs on [module]
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; CHECK-MULTI-PASS: BISECT: running pass (2) function-attrs on (f1)
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; CHECK-MULTI-PASS: BISECT: running pass (3) early-cse on f1
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; CHECK-MULTI-PASS: BISECT: running pass (4) function-attrs on (f2)
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; CHECK-MULTI-PASS: BISECT: running pass (5) early-cse on f2
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; CHECK-MULTI-PASS: BISECT: running pass (6) function-attrs on (f3)
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; CHECK-MULTI-PASS: BISECT: running pass (7) early-cse on f3
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; CHECK-MULTI-PASS: BISECT: running pass (8) function-attrs on (f4)
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; CHECK-MULTI-PASS: BISECT: running pass (9) early-cse on f4
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; RUN: opt -disable-output -disable-verify -opt-bisect-limit=7 \
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; RUN: -passes='inferattrs,cgscc(function-attrs,function(early-cse))' %s 2>&1 \
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; RUN: | FileCheck %s --check-prefix=CHECK-LIMIT-MULTI-PASS
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; CHECK-LIMIT-MULTI-PASS: BISECT: running pass (1) inferattrs on [module]
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; CHECK-LIMIT-MULTI-PASS: BISECT: running pass (2) function-attrs on (f1)
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; CHECK-LIMIT-MULTI-PASS: BISECT: running pass (3) early-cse on f1
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; CHECK-LIMIT-MULTI-PASS: BISECT: running pass (4) function-attrs on (f2)
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; CHECK-LIMIT-MULTI-PASS: BISECT: running pass (5) early-cse on f2
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; CHECK-LIMIT-MULTI-PASS: BISECT: running pass (6) function-attrs on (f3)
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; CHECK-LIMIT-MULTI-PASS: BISECT: running pass (7) early-cse on f3
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; CHECK-LIMIT-MULTI-PASS: BISECT: NOT running pass (8) function-attrs on (f4)
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; CHECK-LIMIT-MULTI-PASS: BISECT: NOT running pass (9) early-cse on f4
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; RUN: opt -disable-output -debug-pass-manager \
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; RUN: -passes=lowertypetests -opt-bisect-limit=-1 %s 2>&1 \
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; RUN: | FileCheck %s --check-prefix=LTT-ALL
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; LTT-ALL-NOT: BISECT: {{.*}}LowerTypeTestsPass
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; LTT-ALL: Running pass: LowerTypeTestsPass
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; RUN: opt -disable-output -debug-pass-manager \
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; RUN: -passes=lowertypetests -opt-bisect-limit=0 %s 2>&1 \
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; RUN: | FileCheck %s --check-prefix=LTT-REQUIRED
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; LTT-REQUIRED-NOT: BISECT: {{.*}}LowerTypeTestsPass
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; LTT-REQUIRED: Running pass: LowerTypeTestsPass
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; Make sure we don't skip writing the output to stdout.
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; RUN: opt %s -opt-bisect-limit=0 -passes=early-cse | opt -S | FileCheck %s -check-prefix=CHECK-OUTPUT
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; RUN: opt %s -opt-bisect-limit=0 -passes=early-cse -S | FileCheck %s -check-prefix=CHECK-OUTPUT
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; CHECK-OUTPUT: define void @f1
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; Make sure we write ThinLTO bitcode
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; RUN: opt %s -opt-bisect-limit=0 -disable-verify -thinlto-bc -o /dev/null 2>&1 | FileCheck --allow-empty %s -check-prefix=CHECK-THINLTO
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; CHECK-THINLTO-NOT: NOT running pass
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declare i32 @g()
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define void @f1(i1 %arg) {
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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 %arg, label %loop.0.0, label %loop.1
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loop.0.0:
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br i1 %arg, label %loop.0.0, label %loop.0.1
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loop.0.1:
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br i1 %arg, label %loop.0.1, label %loop.0
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loop.1:
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br i1 %arg, label %loop.1, label %loop.1.bb1
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loop.1.bb1:
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br i1 %arg, label %loop.1, label %loop.1.bb2
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loop.1.bb2:
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br i1 %arg, label %end, label %loop.1.0
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loop.1.0:
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br i1 %arg, 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(i1 %arg) {
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entry:
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%i = alloca i32, align 4
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call void @llvm.lifetime.start(i64 4, ptr %i)
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br label %for.cond
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for.cond:
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br i1 %arg, 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, ptr nocapture)
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