b51b83f68e
D106720 introduced features that did not work properly as we could add new queries after a fixpoint was reached and which could not be answered by the information gathered up to the fixpoint alone. As an alternative to D110078, which forced eager computation where we want to continue to be lazy, this patch fixes the problem. QueryAAs are AAs that allow lazy queries during their lifetime. They are never fixed if they have no outstanding dependences and always run as part of the updates in an iteration. To determine if we are done, all query AAs are asked if they received new queries, if not, we only need to consider updated AAs, as before. If new queries are present we go for another iteration. Differential Revision: https://reviews.llvm.org/D118669
97 lines
5.4 KiB
LLVM
97 lines
5.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
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; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=2 -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-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=2 -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 -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-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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; PR5569
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; IPSCCP should prove that the blocks are dead and delete them, and
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; properly handle the dangling blockaddress constants.
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@code = global [5 x i32] [i32 0, i32 0, i32 0, i32 0, i32 1], align 4 ; <[5 x i32]*> [#uses=0]
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@bar.l = internal constant [2 x i8*] [i8* blockaddress(@bar, %lab0), i8* blockaddress(@bar, %end)] ; <[2 x i8*]*> [#uses=1]
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;.
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; IS__TUNIT____: @[[CODE:[a-zA-Z0-9_$"\\.-]+]] = global [5 x i32] [i32 0, i32 0, i32 0, i32 0, i32 1], align 4
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; IS__TUNIT____: @[[BAR_L:[a-zA-Z0-9_$"\\.-]+]] = internal constant [2 x i8*] [i8* inttoptr (i32 1 to i8*), i8* inttoptr (i32 1 to i8*)]
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;.
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; IS__CGSCC____: @[[CODE:[a-zA-Z0-9_$"\\.-]+]] = global [5 x i32] [i32 0, i32 0, i32 0, i32 0, i32 1], align 4
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; IS__CGSCC____: @[[BAR_L:[a-zA-Z0-9_$"\\.-]+]] = internal constant [2 x i8*] [i8* blockaddress(@bar, [[LAB0:%.*]]), i8* blockaddress(@bar, [[END:%.*]])]
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;.
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define internal void @foo(i32 %x) nounwind readnone {
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; IS__CGSCC____: Function Attrs: nounwind readnone
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; IS__CGSCC____-LABEL: define {{[^@]+}}@foo
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; IS__CGSCC____-SAME: (i32 [[X:%.*]]) #[[ATTR0:[0-9]+]] {
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; IS__CGSCC____-NEXT: entry:
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; IS__CGSCC____-NEXT: [[B:%.*]] = alloca i32, align 4
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; IS__CGSCC____-NEXT: store volatile i32 -1, i32* [[B]], align 4
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; IS__CGSCC____-NEXT: ret void
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;
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entry:
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%b = alloca i32, align 4 ; <i32*> [#uses=1]
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store volatile i32 -1, i32* %b
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ret void
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}
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define internal void @bar(i32* nocapture %pc) nounwind readonly {
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; IS__CGSCC____: Function Attrs: nounwind readonly
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; IS__CGSCC____-LABEL: define {{[^@]+}}@bar
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; IS__CGSCC____-SAME: (i32* nocapture [[PC:%.*]]) #[[ATTR1:[0-9]+]] {
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; IS__CGSCC____-NEXT: entry:
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; IS__CGSCC____-NEXT: br label [[INDIRECTGOTO:%.*]]
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; IS__CGSCC____: lab0:
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; IS__CGSCC____-NEXT: [[INDVAR_NEXT:%.*]] = add i32 [[INDVAR:%.*]], 1
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; IS__CGSCC____-NEXT: br label [[INDIRECTGOTO]]
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; IS__CGSCC____: end:
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; IS__CGSCC____-NEXT: ret void
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; IS__CGSCC____: indirectgoto:
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; IS__CGSCC____-NEXT: [[INDVAR]] = phi i32 [ [[INDVAR_NEXT]], [[LAB0:%.*]] ], [ 0, [[ENTRY:%.*]] ]
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; IS__CGSCC____-NEXT: [[PC_ADDR_0:%.*]] = getelementptr i32, i32* [[PC]], i32 [[INDVAR]]
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; IS__CGSCC____-NEXT: [[TMP1_PN:%.*]] = load i32, i32* [[PC_ADDR_0]], align 4
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; IS__CGSCC____-NEXT: [[INDIRECT_GOTO_DEST_IN:%.*]] = getelementptr inbounds [2 x i8*], [2 x i8*]* @bar.l, i32 0, i32 [[TMP1_PN]]
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; IS__CGSCC____-NEXT: [[INDIRECT_GOTO_DEST:%.*]] = load i8*, i8** [[INDIRECT_GOTO_DEST_IN]], align 8
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; IS__CGSCC____-NEXT: indirectbr i8* [[INDIRECT_GOTO_DEST]], [label [[LAB0]], label %end]
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;
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entry:
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br label %indirectgoto
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lab0: ; preds = %indirectgoto
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%indvar.next = add i32 %indvar, 1 ; <i32> [#uses=1]
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br label %indirectgoto
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end: ; preds = %indirectgoto
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ret void
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indirectgoto: ; preds = %lab0, %entry
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%indvar = phi i32 [ %indvar.next, %lab0 ], [ 0, %entry ] ; <i32> [#uses=2]
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%pc.addr.0 = getelementptr i32, i32* %pc, i32 %indvar ; <i32*> [#uses=1]
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%tmp1.pn = load i32, i32* %pc.addr.0 ; <i32> [#uses=1]
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%indirect.goto.dest.in = getelementptr inbounds [2 x i8*], [2 x i8*]* @bar.l, i32 0, i32 %tmp1.pn ; <i8**> [#uses=1]
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%indirect.goto.dest = load i8*, i8** %indirect.goto.dest.in ; <i8*> [#uses=1]
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indirectbr i8* %indirect.goto.dest, [label %lab0, label %end]
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}
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define i32 @main() nounwind readnone {
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; IS__TUNIT____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__TUNIT____-LABEL: define {{[^@]+}}@main
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; IS__TUNIT____-SAME: () #[[ATTR0:[0-9]+]] {
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; IS__TUNIT____-NEXT: entry:
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; IS__TUNIT____-NEXT: ret i32 0
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;
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; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@main
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; IS__CGSCC____-SAME: () #[[ATTR2:[0-9]+]] {
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; IS__CGSCC____-NEXT: entry:
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; IS__CGSCC____-NEXT: ret i32 0
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;
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entry:
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ret i32 0
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}
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;.
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; IS__TUNIT____: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
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;.
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; IS__CGSCC____: attributes #[[ATTR0]] = { nounwind readnone }
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; IS__CGSCC____: attributes #[[ATTR1]] = { nounwind readonly }
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; IS__CGSCC____: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind readnone willreturn }
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;.
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