5ef18e2421
We should use AAValueSimplify for all value simplification, however there was some leftover logic that predates AAValueSimplify in AAReturnedValues. This remove the AAReturnedValues part and provides a replacement by making AAValueSimplifyReturned strong enough to handle all previously covered cases. Further, this improve AAValueSimplifyCallSiteReturned to handle returned arguments. AAReturnedValues is now much easier and the collected returned values/instructions are now from the associated function only, making it much more sane. We also do not have the brittle logic anymore that looks for unresolved calls. Instead, we use AAValueSimplify to handle recursion. Useful code has been split into helper functions, e.g., an Attributor interface to get a simplified value. Differential Revision: https://reviews.llvm.org/D103860
141 lines
6.7 KiB
LLVM
141 lines
6.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --scrub-attributes --check-globals
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; call site specific analysis is enabled
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; RUN: opt -attributor -enable-new-pm=0 -attributor-enable-call-site-specific-deduction=true -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=1 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM
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; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-enable-call-site-specific-deduction=true -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=1 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM
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; RUN: opt -attributor-cgscc -attributor-enable-call-site-specific-deduction=true -enable-new-pm=0 -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_NPM,IS__CGSCC____,IS________OPM,IS__CGSCC_OPM
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; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-enable-call-site-specific-deduction=true -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_OPM,IS__CGSCC____,IS________NPM,IS__CGSCC_NPM
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define i32 @test_range(i32 %unknown) {
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; CHECK-LABEL: define {{[^@]+}}@test_range
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; CHECK-SAME: (i32 [[UNKNOWN:%.*]]) #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: [[TMP1:%.*]] = icmp sgt i32 [[UNKNOWN]], 100
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; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i32 100, i32 0
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; CHECK-NEXT: ret i32 [[TMP2]]
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;
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%1 = icmp sgt i32 %unknown, 100
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%2 = select i1 %1, i32 100, i32 0
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ret i32 %2
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}
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define i32 @test1(i32 %unknown, i32 %b) {
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; IS__TUNIT____-LABEL: define {{[^@]+}}@test1
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; IS__TUNIT____-SAME: (i32 [[UNKNOWN:%.*]], i32 [[B:%.*]]) #[[ATTR0]] {
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; IS__TUNIT____-NEXT: [[TMP1:%.*]] = call i32 @test_range(i32 [[UNKNOWN]]) #[[ATTR0]], !range [[RNG0:![0-9]+]]
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; IS__TUNIT____-NEXT: [[TMP2:%.*]] = sub nsw i32 [[TMP1]], [[B]]
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; IS__TUNIT____-NEXT: ret i32 [[TMP2]]
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;
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; IS__CGSCC____-LABEL: define {{[^@]+}}@test1
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; IS__CGSCC____-SAME: (i32 [[UNKNOWN:%.*]], i32 [[B:%.*]]) #[[ATTR0]] {
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; IS__CGSCC____-NEXT: [[TMP1:%.*]] = call i32 @test_range(i32 [[UNKNOWN]]) #[[ATTR1:[0-9]+]], !range [[RNG0:![0-9]+]]
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; IS__CGSCC____-NEXT: [[TMP2:%.*]] = sub nsw i32 [[TMP1]], [[B]]
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; IS__CGSCC____-NEXT: ret i32 [[TMP2]]
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;
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%1 = call i32 @test_range(i32 %unknown)
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%2 = sub nsw i32 %1, %b
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ret i32 %2
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}
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define i32 @test2(i32 %unknown, i32 %b) {
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; IS__TUNIT____-LABEL: define {{[^@]+}}@test2
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; IS__TUNIT____-SAME: (i32 [[UNKNOWN:%.*]], i32 [[B:%.*]]) #[[ATTR0]] {
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; IS__TUNIT____-NEXT: [[TMP1:%.*]] = call i32 @test_range(i32 [[UNKNOWN]]) #[[ATTR0]], !range [[RNG0]]
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; IS__TUNIT____-NEXT: [[TMP2:%.*]] = add nsw i32 [[TMP1]], [[B]]
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; IS__TUNIT____-NEXT: ret i32 [[TMP2]]
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;
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; IS__CGSCC____-LABEL: define {{[^@]+}}@test2
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; IS__CGSCC____-SAME: (i32 [[UNKNOWN:%.*]], i32 [[B:%.*]]) #[[ATTR0]] {
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; IS__CGSCC____-NEXT: [[TMP1:%.*]] = call i32 @test_range(i32 [[UNKNOWN]]) #[[ATTR1]], !range [[RNG0]]
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; IS__CGSCC____-NEXT: [[TMP2:%.*]] = add nsw i32 [[TMP1]], [[B]]
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; IS__CGSCC____-NEXT: ret i32 [[TMP2]]
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;
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%1 = call i32 @test_range(i32 %unknown)
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%2 = add nsw i32 %1, %b
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ret i32 %2
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}
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; Positive checks
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; FIXME: AAValueSimplify preserves the context but simplifies to a value in the other function, I think.
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; Either way, as we settle on the new AAValueSimplifyReturned scheme that replaces AAReturnedValues
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; we need to look into this again. For the purpose of making some progress we take this regression
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; for now, call site contexts are not on by default anyway (yet).
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define i32 @test1_pcheck(i32 %unknown) {
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; CHECK-LABEL: define {{[^@]+}}@test1_pcheck
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; CHECK-SAME: (i32 [[UNKNOWN:%.*]]) #[[ATTR0]] {
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; CHECK-NEXT: ret i32 1
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;
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%1 = call i32 @test1(i32 %unknown, i32 20)
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%2 = icmp sle i32 %1, 90
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%3 = zext i1 %2 to i32
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ret i32 %3
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}
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define i32 @test2_pcheck(i32 %unknown) {
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; CHECK-LABEL: define {{[^@]+}}@test2_pcheck
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; CHECK-SAME: (i32 [[UNKNOWN:%.*]]) #[[ATTR0]] {
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; CHECK-NEXT: ret i32 1
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;
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%1 = call i32 @test2(i32 %unknown, i32 20)
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%2 = icmp sge i32 %1, 20
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%3 = zext i1 %2 to i32
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ret i32 %3
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}
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; Negative checks
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define i32 @test1_ncheck(i32 %unknown) {
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; IS__TUNIT____-LABEL: define {{[^@]+}}@test1_ncheck
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; IS__TUNIT____-SAME: (i32 [[UNKNOWN:%.*]]) #[[ATTR0]] {
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; IS__TUNIT____-NEXT: [[TMP1:%.*]] = call i32 @test1(i32 [[UNKNOWN]], i32 noundef 20) #[[ATTR0]], !range [[RNG1:![0-9]+]]
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; IS__TUNIT____-NEXT: [[TMP2:%.*]] = icmp sle i32 [[TMP1]], 10
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; IS__TUNIT____-NEXT: [[TMP3:%.*]] = zext i1 [[TMP2]] to i32
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; IS__TUNIT____-NEXT: ret i32 [[TMP3]]
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;
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; IS__CGSCC____-LABEL: define {{[^@]+}}@test1_ncheck
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; IS__CGSCC____-SAME: (i32 [[UNKNOWN:%.*]]) #[[ATTR0]] {
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; IS__CGSCC____-NEXT: [[TMP1:%.*]] = call i32 @test1(i32 [[UNKNOWN]], i32 noundef 20) #[[ATTR1]], !range [[RNG1:![0-9]+]]
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; IS__CGSCC____-NEXT: [[TMP2:%.*]] = icmp sle i32 [[TMP1]], 10
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; IS__CGSCC____-NEXT: [[TMP3:%.*]] = zext i1 [[TMP2]] to i32
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; IS__CGSCC____-NEXT: ret i32 [[TMP3]]
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;
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%1 = call i32 @test1(i32 %unknown, i32 20)
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%2 = icmp sle i32 %1, 10
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%3 = zext i1 %2 to i32
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ret i32 %3
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}
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define i32 @test2_ncheck(i32 %unknown) {
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; IS__TUNIT____-LABEL: define {{[^@]+}}@test2_ncheck
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; IS__TUNIT____-SAME: (i32 [[UNKNOWN:%.*]]) #[[ATTR0]] {
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; IS__TUNIT____-NEXT: [[TMP1:%.*]] = call i32 @test2(i32 [[UNKNOWN]], i32 noundef 20) #[[ATTR0]], !range [[RNG2:![0-9]+]]
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; IS__TUNIT____-NEXT: [[TMP2:%.*]] = icmp sge i32 [[TMP1]], 30
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; IS__TUNIT____-NEXT: [[TMP3:%.*]] = zext i1 [[TMP2]] to i32
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; IS__TUNIT____-NEXT: ret i32 [[TMP3]]
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;
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; IS__CGSCC____-LABEL: define {{[^@]+}}@test2_ncheck
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; IS__CGSCC____-SAME: (i32 [[UNKNOWN:%.*]]) #[[ATTR0]] {
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; IS__CGSCC____-NEXT: [[TMP1:%.*]] = call i32 @test2(i32 [[UNKNOWN]], i32 noundef 20) #[[ATTR1]], !range [[RNG2:![0-9]+]]
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; IS__CGSCC____-NEXT: [[TMP2:%.*]] = icmp sge i32 [[TMP1]], 30
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; IS__CGSCC____-NEXT: [[TMP3:%.*]] = zext i1 [[TMP2]] to i32
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; IS__CGSCC____-NEXT: ret i32 [[TMP3]]
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;
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%1 = call i32 @test2(i32 %unknown, i32 20)
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%2 = icmp sge i32 %1, 30
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%3 = zext i1 %2 to i32
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ret i32 %3
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}
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;.
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; IS__TUNIT____: attributes #[[ATTR0]] = { nofree nosync nounwind readnone willreturn }
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;.
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; IS__CGSCC____: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
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; IS__CGSCC____: attributes #[[ATTR1]] = { readnone willreturn }
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;.
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; CHECK: [[META0:![0-9]+]] = !{i32 0, i32 101}
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; CHECK: [[META1:![0-9]+]] = !{i32 -20, i32 81}
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; CHECK: [[META2:![0-9]+]] = !{i32 20, i32 121}
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;.
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