| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals |
| ; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=6 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM |
| ; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=6 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM |
| ; 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 |
| ; 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 |
| |
| @g = global i32* null ; <i32**> [#uses=1] |
| |
| ;. |
| ; CHECK: @[[G:[a-zA-Z0-9_$"\\.-]+]] = global i32* null |
| ; CHECK: @[[LOOKUP_TABLE:[a-zA-Z0-9_$"\\.-]+]] = global [2 x i1] [i1 false, i1 true] |
| ; CHECK: @[[G2:[a-zA-Z0-9_$"\\.-]+]] = global i8* null |
| ; CHECK: @[[G3:[a-zA-Z0-9_$"\\.-]+]] = global i8* null |
| ;. |
| define i32* @c1(i32* %q) { |
| ; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@c1 |
| ; IS__TUNIT____-SAME: (i32* nofree readnone returned "no-capture-maybe-returned" [[Q:%.*]]) #[[ATTR0:[0-9]+]] { |
| ; IS__TUNIT____-NEXT: ret i32* [[Q]] |
| ; |
| ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@c1 |
| ; IS__CGSCC____-SAME: (i32* nofree readnone returned "no-capture-maybe-returned" [[Q:%.*]]) #[[ATTR0:[0-9]+]] { |
| ; IS__CGSCC____-NEXT: ret i32* [[Q]] |
| ; |
| ret i32* %q |
| } |
| |
| ; It would also be acceptable to mark %q as readnone. Update @c3 too. |
| define void @c2(i32* %q) { |
| ; IS__TUNIT____: Function Attrs: nofree nosync nounwind willreturn writeonly |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@c2 |
| ; IS__TUNIT____-SAME: (i32* nofree writeonly [[Q:%.*]]) #[[ATTR1:[0-9]+]] { |
| ; IS__TUNIT____-NEXT: store i32* [[Q]], i32** @g, align 8 |
| ; IS__TUNIT____-NEXT: ret void |
| ; |
| ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@c2 |
| ; IS__CGSCC____-SAME: (i32* nofree writeonly [[Q:%.*]]) #[[ATTR1:[0-9]+]] { |
| ; IS__CGSCC____-NEXT: store i32* [[Q]], i32** @g, align 8 |
| ; IS__CGSCC____-NEXT: ret void |
| ; |
| store i32* %q, i32** @g |
| ret void |
| } |
| |
| define void @c3(i32* %q) { |
| ; IS__TUNIT____: Function Attrs: nofree nosync nounwind willreturn writeonly |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@c3 |
| ; IS__TUNIT____-SAME: (i32* nofree writeonly [[Q:%.*]]) #[[ATTR1]] { |
| ; IS__TUNIT____-NEXT: call void @c2(i32* nofree writeonly [[Q]]) #[[ATTR1]] |
| ; IS__TUNIT____-NEXT: ret void |
| ; |
| ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@c3 |
| ; IS__CGSCC____-SAME: (i32* nofree writeonly [[Q:%.*]]) #[[ATTR1]] { |
| ; IS__CGSCC____-NEXT: call void @c2(i32* nofree writeonly [[Q]]) #[[ATTR19:[0-9]+]] |
| ; IS__CGSCC____-NEXT: ret void |
| ; |
| call void @c2(i32* %q) |
| ret void |
| } |
| |
| define i1 @c4(i32* %q, i32 %bitno) { |
| ; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@c4 |
| ; IS__TUNIT____-SAME: (i32* nofree readnone [[Q:%.*]], i32 [[BITNO:%.*]]) #[[ATTR0]] { |
| ; IS__TUNIT____-NEXT: [[TMP:%.*]] = ptrtoint i32* [[Q]] to i32 |
| ; IS__TUNIT____-NEXT: [[TMP2:%.*]] = lshr i32 [[TMP]], [[BITNO]] |
| ; IS__TUNIT____-NEXT: [[BIT:%.*]] = trunc i32 [[TMP2]] to i1 |
| ; IS__TUNIT____-NEXT: br i1 [[BIT]], label [[L1:%.*]], label [[L0:%.*]] |
| ; IS__TUNIT____: l0: |
| ; IS__TUNIT____-NEXT: ret i1 false |
| ; IS__TUNIT____: l1: |
| ; IS__TUNIT____-NEXT: ret i1 true |
| ; |
| ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@c4 |
| ; IS__CGSCC____-SAME: (i32* nofree readnone [[Q:%.*]], i32 [[BITNO:%.*]]) #[[ATTR0]] { |
| ; IS__CGSCC____-NEXT: [[TMP:%.*]] = ptrtoint i32* [[Q]] to i32 |
| ; IS__CGSCC____-NEXT: [[TMP2:%.*]] = lshr i32 [[TMP]], [[BITNO]] |
| ; IS__CGSCC____-NEXT: [[BIT:%.*]] = trunc i32 [[TMP2]] to i1 |
| ; IS__CGSCC____-NEXT: br i1 [[BIT]], label [[L1:%.*]], label [[L0:%.*]] |
| ; IS__CGSCC____: l0: |
| ; IS__CGSCC____-NEXT: ret i1 false |
| ; IS__CGSCC____: l1: |
| ; IS__CGSCC____-NEXT: ret i1 true |
| ; |
| %tmp = ptrtoint i32* %q to i32 |
| %tmp2 = lshr i32 %tmp, %bitno |
| %bit = trunc i32 %tmp2 to i1 |
| br i1 %bit, label %l1, label %l0 |
| l0: |
| ret i1 0 ; escaping value not caught by def-use chaining. |
| l1: |
| ret i1 1 ; escaping value not caught by def-use chaining. |
| } |
| |
| ; c4b is c4 but without the escaping part |
| define i1 @c4b(i32* %q, i32 %bitno) { |
| ; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@c4b |
| ; IS__TUNIT____-SAME: (i32* nocapture nofree readnone [[Q:%.*]], i32 [[BITNO:%.*]]) #[[ATTR0]] { |
| ; IS__TUNIT____-NEXT: [[TMP:%.*]] = ptrtoint i32* [[Q]] to i32 |
| ; IS__TUNIT____-NEXT: [[TMP2:%.*]] = lshr i32 [[TMP]], [[BITNO]] |
| ; IS__TUNIT____-NEXT: [[BIT:%.*]] = trunc i32 [[TMP2]] to i1 |
| ; IS__TUNIT____-NEXT: br i1 [[BIT]], label [[L1:%.*]], label [[L0:%.*]] |
| ; IS__TUNIT____: l0: |
| ; IS__TUNIT____-NEXT: ret i1 false |
| ; IS__TUNIT____: l1: |
| ; IS__TUNIT____-NEXT: ret i1 false |
| ; |
| ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@c4b |
| ; IS__CGSCC____-SAME: (i32* nocapture nofree readnone [[Q:%.*]], i32 [[BITNO:%.*]]) #[[ATTR0]] { |
| ; IS__CGSCC____-NEXT: [[TMP:%.*]] = ptrtoint i32* [[Q]] to i32 |
| ; IS__CGSCC____-NEXT: [[TMP2:%.*]] = lshr i32 [[TMP]], [[BITNO]] |
| ; IS__CGSCC____-NEXT: [[BIT:%.*]] = trunc i32 [[TMP2]] to i1 |
| ; IS__CGSCC____-NEXT: br i1 [[BIT]], label [[L1:%.*]], label [[L0:%.*]] |
| ; IS__CGSCC____: l0: |
| ; IS__CGSCC____-NEXT: ret i1 false |
| ; IS__CGSCC____: l1: |
| ; IS__CGSCC____-NEXT: ret i1 false |
| ; |
| %tmp = ptrtoint i32* %q to i32 |
| %tmp2 = lshr i32 %tmp, %bitno |
| %bit = trunc i32 %tmp2 to i1 |
| br i1 %bit, label %l1, label %l0 |
| l0: |
| ret i1 0 ; not escaping! |
| l1: |
| ret i1 0 ; not escaping! |
| } |
| |
| @lookup_table = global [2 x i1] [ i1 0, i1 1 ] |
| |
| define i1 @c5(i32* %q, i32 %bitno) { |
| ; IS__TUNIT____: Function Attrs: nofree nosync nounwind readonly willreturn |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@c5 |
| ; IS__TUNIT____-SAME: (i32* nofree readonly [[Q:%.*]], i32 [[BITNO:%.*]]) #[[ATTR2:[0-9]+]] { |
| ; IS__TUNIT____-NEXT: [[TMP:%.*]] = ptrtoint i32* [[Q]] to i32 |
| ; IS__TUNIT____-NEXT: [[TMP2:%.*]] = lshr i32 [[TMP]], [[BITNO]] |
| ; IS__TUNIT____-NEXT: [[BIT:%.*]] = and i32 [[TMP2]], 1 |
| ; IS__TUNIT____-NEXT: [[LOOKUP:%.*]] = getelementptr [2 x i1], [2 x i1]* @lookup_table, i32 0, i32 [[BIT]] |
| ; IS__TUNIT____-NEXT: [[VAL:%.*]] = load i1, i1* [[LOOKUP]], align 1 |
| ; IS__TUNIT____-NEXT: ret i1 [[VAL]] |
| ; |
| ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readonly willreturn |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@c5 |
| ; IS__CGSCC____-SAME: (i32* nofree readonly [[Q:%.*]], i32 [[BITNO:%.*]]) #[[ATTR2:[0-9]+]] { |
| ; IS__CGSCC____-NEXT: [[TMP:%.*]] = ptrtoint i32* [[Q]] to i32 |
| ; IS__CGSCC____-NEXT: [[TMP2:%.*]] = lshr i32 [[TMP]], [[BITNO]] |
| ; IS__CGSCC____-NEXT: [[BIT:%.*]] = and i32 [[TMP2]], 1 |
| ; IS__CGSCC____-NEXT: [[LOOKUP:%.*]] = getelementptr [2 x i1], [2 x i1]* @lookup_table, i32 0, i32 [[BIT]] |
| ; IS__CGSCC____-NEXT: [[VAL:%.*]] = load i1, i1* [[LOOKUP]], align 1 |
| ; IS__CGSCC____-NEXT: ret i1 [[VAL]] |
| ; |
| %tmp = ptrtoint i32* %q to i32 |
| %tmp2 = lshr i32 %tmp, %bitno |
| %bit = and i32 %tmp2, 1 |
| ; subtle escape mechanism follows |
| %lookup = getelementptr [2 x i1], [2 x i1]* @lookup_table, i32 0, i32 %bit |
| %val = load i1, i1* %lookup |
| ret i1 %val |
| } |
| |
| declare void @throw_if_bit_set(i8*, i8) readonly |
| |
| define i1 @c6(i8* %q, i8 %bit) personality i32 (...)* @__gxx_personality_v0 { |
| ; CHECK: Function Attrs: nounwind readonly |
| ; CHECK-LABEL: define {{[^@]+}}@c6 |
| ; CHECK-SAME: (i8* readonly [[Q:%.*]], i8 [[BIT:%.*]]) #[[ATTR4:[0-9]+]] personality i32 (...)* @__gxx_personality_v0 { |
| ; CHECK-NEXT: invoke void @throw_if_bit_set(i8* readonly [[Q]], i8 [[BIT]]) #[[ATTR3:[0-9]+]] |
| ; CHECK-NEXT: to label [[RET0:%.*]] unwind label [[RET1:%.*]] |
| ; CHECK: ret0: |
| ; CHECK-NEXT: ret i1 false |
| ; CHECK: ret1: |
| ; CHECK-NEXT: [[EXN:%.*]] = landingpad { i8*, i32 } |
| ; CHECK-NEXT: cleanup |
| ; CHECK-NEXT: ret i1 true |
| ; |
| invoke void @throw_if_bit_set(i8* %q, i8 %bit) |
| to label %ret0 unwind label %ret1 |
| ret0: |
| ret i1 0 |
| ret1: |
| %exn = landingpad {i8*, i32} |
| cleanup |
| ret i1 1 |
| } |
| |
| declare i32 @__gxx_personality_v0(...) |
| |
| define i1* @lookup_bit(i32* %q, i32 %bitno) readnone nounwind { |
| ; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@lookup_bit |
| ; IS__TUNIT____-SAME: (i32* nofree readnone [[Q:%.*]], i32 [[BITNO:%.*]]) #[[ATTR0]] { |
| ; IS__TUNIT____-NEXT: [[TMP:%.*]] = ptrtoint i32* [[Q]] to i32 |
| ; IS__TUNIT____-NEXT: [[TMP2:%.*]] = lshr i32 [[TMP]], [[BITNO]] |
| ; IS__TUNIT____-NEXT: [[BIT:%.*]] = and i32 [[TMP2]], 1 |
| ; IS__TUNIT____-NEXT: [[LOOKUP:%.*]] = getelementptr [2 x i1], [2 x i1]* @lookup_table, i32 0, i32 [[BIT]] |
| ; IS__TUNIT____-NEXT: ret i1* [[LOOKUP]] |
| ; |
| ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@lookup_bit |
| ; IS__CGSCC____-SAME: (i32* nofree readnone [[Q:%.*]], i32 [[BITNO:%.*]]) #[[ATTR0]] { |
| ; IS__CGSCC____-NEXT: [[TMP:%.*]] = ptrtoint i32* [[Q]] to i32 |
| ; IS__CGSCC____-NEXT: [[TMP2:%.*]] = lshr i32 [[TMP]], [[BITNO]] |
| ; IS__CGSCC____-NEXT: [[BIT:%.*]] = and i32 [[TMP2]], 1 |
| ; IS__CGSCC____-NEXT: [[LOOKUP:%.*]] = getelementptr [2 x i1], [2 x i1]* @lookup_table, i32 0, i32 [[BIT]] |
| ; IS__CGSCC____-NEXT: ret i1* [[LOOKUP]] |
| ; |
| %tmp = ptrtoint i32* %q to i32 |
| %tmp2 = lshr i32 %tmp, %bitno |
| %bit = and i32 %tmp2, 1 |
| %lookup = getelementptr [2 x i1], [2 x i1]* @lookup_table, i32 0, i32 %bit |
| ret i1* %lookup |
| } |
| |
| define i1 @c7(i32* %q, i32 %bitno) { |
| ; IS__TUNIT____: Function Attrs: nofree nosync nounwind readonly willreturn |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@c7 |
| ; IS__TUNIT____-SAME: (i32* nofree readonly [[Q:%.*]], i32 [[BITNO:%.*]]) #[[ATTR2]] { |
| ; IS__TUNIT____-NEXT: [[PTR:%.*]] = call i1* @lookup_bit(i32* noalias nofree readnone [[Q]], i32 [[BITNO]]) #[[ATTR17:[0-9]+]] |
| ; IS__TUNIT____-NEXT: [[VAL:%.*]] = load i1, i1* [[PTR]], align 1 |
| ; IS__TUNIT____-NEXT: ret i1 [[VAL]] |
| ; |
| ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readonly willreturn |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@c7 |
| ; IS__CGSCC____-SAME: (i32* nofree readonly [[Q:%.*]], i32 [[BITNO:%.*]]) #[[ATTR2]] { |
| ; IS__CGSCC____-NEXT: [[PTR:%.*]] = call i1* @lookup_bit(i32* noalias nofree readnone [[Q]], i32 [[BITNO]]) #[[ATTR20:[0-9]+]] |
| ; IS__CGSCC____-NEXT: [[VAL:%.*]] = load i1, i1* [[PTR]], align 1 |
| ; IS__CGSCC____-NEXT: ret i1 [[VAL]] |
| ; |
| %ptr = call i1* @lookup_bit(i32* %q, i32 %bitno) |
| %val = load i1, i1* %ptr |
| ret i1 %val |
| } |
| |
| |
| define i32 @nc1(i32* %q, i32* %p, i1 %b) { |
| ; IS__TUNIT____: Function Attrs: nofree nosync nounwind willreturn |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@nc1 |
| ; IS__TUNIT____-SAME: (i32* nofree [[Q:%.*]], i32* nocapture nofree [[P:%.*]], i1 [[B:%.*]]) #[[ATTR5:[0-9]+]] { |
| ; IS__TUNIT____-NEXT: e: |
| ; IS__TUNIT____-NEXT: br label [[L:%.*]] |
| ; IS__TUNIT____: l: |
| ; IS__TUNIT____-NEXT: [[Y:%.*]] = phi i32* [ [[Q]], [[E:%.*]] ] |
| ; IS__TUNIT____-NEXT: [[TMP2:%.*]] = select i1 [[B]], i32* [[P]], i32* [[Y]] |
| ; IS__TUNIT____-NEXT: [[VAL:%.*]] = load i32, i32* [[TMP2]], align 4 |
| ; IS__TUNIT____-NEXT: store i32 0, i32* [[P]], align 4 |
| ; IS__TUNIT____-NEXT: store i32* [[Y]], i32** @g, align 8 |
| ; IS__TUNIT____-NEXT: ret i32 [[VAL]] |
| ; |
| ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind willreturn |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@nc1 |
| ; IS__CGSCC____-SAME: (i32* nofree [[Q:%.*]], i32* nocapture nofree align 4 [[P:%.*]], i1 [[B:%.*]]) #[[ATTR5:[0-9]+]] { |
| ; IS__CGSCC____-NEXT: e: |
| ; IS__CGSCC____-NEXT: br label [[L:%.*]] |
| ; IS__CGSCC____: l: |
| ; IS__CGSCC____-NEXT: [[Y:%.*]] = phi i32* [ [[Q]], [[E:%.*]] ] |
| ; IS__CGSCC____-NEXT: [[TMP2:%.*]] = select i1 [[B]], i32* [[P]], i32* [[Y]] |
| ; IS__CGSCC____-NEXT: [[VAL:%.*]] = load i32, i32* [[TMP2]], align 4 |
| ; IS__CGSCC____-NEXT: store i32 0, i32* [[P]], align 4 |
| ; IS__CGSCC____-NEXT: store i32* [[Y]], i32** @g, align 8 |
| ; IS__CGSCC____-NEXT: ret i32 [[VAL]] |
| ; |
| e: |
| br label %l |
| l: |
| %x = phi i32* [ %p, %e ] |
| %y = phi i32* [ %q, %e ] |
| %tmp = bitcast i32* %x to i32* ; <i32*> [#uses=2] |
| %tmp2 = select i1 %b, i32* %tmp, i32* %y |
| %val = load i32, i32* %tmp2 ; <i32> [#uses=1] |
| store i32 0, i32* %tmp |
| store i32* %y, i32** @g |
| ret i32 %val |
| } |
| |
| define i32 @nc1_addrspace(i32* %q, i32 addrspace(1)* %p, i1 %b) { |
| ; IS__TUNIT____: Function Attrs: nofree nosync nounwind willreturn |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@nc1_addrspace |
| ; IS__TUNIT____-SAME: (i32* nofree [[Q:%.*]], i32 addrspace(1)* nocapture nofree [[P:%.*]], i1 [[B:%.*]]) #[[ATTR5]] { |
| ; IS__TUNIT____-NEXT: e: |
| ; IS__TUNIT____-NEXT: br label [[L:%.*]] |
| ; IS__TUNIT____: l: |
| ; IS__TUNIT____-NEXT: [[X:%.*]] = phi i32 addrspace(1)* [ [[P]], [[E:%.*]] ] |
| ; IS__TUNIT____-NEXT: [[Y:%.*]] = phi i32* [ [[Q]], [[E]] ] |
| ; IS__TUNIT____-NEXT: [[TMP:%.*]] = addrspacecast i32 addrspace(1)* [[X]] to i32* |
| ; IS__TUNIT____-NEXT: [[TMP2:%.*]] = select i1 [[B]], i32* [[TMP]], i32* [[Y]] |
| ; IS__TUNIT____-NEXT: [[VAL:%.*]] = load i32, i32* [[TMP2]], align 4 |
| ; IS__TUNIT____-NEXT: store i32 0, i32* [[TMP]], align 4 |
| ; IS__TUNIT____-NEXT: store i32* [[Y]], i32** @g, align 8 |
| ; IS__TUNIT____-NEXT: ret i32 [[VAL]] |
| ; |
| ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind willreturn |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@nc1_addrspace |
| ; IS__CGSCC____-SAME: (i32* nofree [[Q:%.*]], i32 addrspace(1)* nocapture nofree [[P:%.*]], i1 [[B:%.*]]) #[[ATTR5]] { |
| ; IS__CGSCC____-NEXT: e: |
| ; IS__CGSCC____-NEXT: br label [[L:%.*]] |
| ; IS__CGSCC____: l: |
| ; IS__CGSCC____-NEXT: [[X:%.*]] = phi i32 addrspace(1)* [ [[P]], [[E:%.*]] ] |
| ; IS__CGSCC____-NEXT: [[Y:%.*]] = phi i32* [ [[Q]], [[E]] ] |
| ; IS__CGSCC____-NEXT: [[TMP:%.*]] = addrspacecast i32 addrspace(1)* [[X]] to i32* |
| ; IS__CGSCC____-NEXT: [[TMP2:%.*]] = select i1 [[B]], i32* [[TMP]], i32* [[Y]] |
| ; IS__CGSCC____-NEXT: [[VAL:%.*]] = load i32, i32* [[TMP2]], align 4 |
| ; IS__CGSCC____-NEXT: store i32 0, i32* [[TMP]], align 4 |
| ; IS__CGSCC____-NEXT: store i32* [[Y]], i32** @g, align 8 |
| ; IS__CGSCC____-NEXT: ret i32 [[VAL]] |
| ; |
| e: |
| br label %l |
| l: |
| %x = phi i32 addrspace(1)* [ %p, %e ] |
| %y = phi i32* [ %q, %e ] |
| %tmp = addrspacecast i32 addrspace(1)* %x to i32* ; <i32*> [#uses=2] |
| %tmp2 = select i1 %b, i32* %tmp, i32* %y |
| %val = load i32, i32* %tmp2 ; <i32> [#uses=1] |
| store i32 0, i32* %tmp |
| store i32* %y, i32** @g |
| ret i32 %val |
| } |
| |
| define void @nc2(i32* %p, i32* %q) { |
| ; IS__TUNIT____: Function Attrs: nofree nosync nounwind willreturn |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@nc2 |
| ; IS__TUNIT____-SAME: (i32* nocapture nofree [[P:%.*]], i32* nofree [[Q:%.*]]) #[[ATTR5]] { |
| ; IS__TUNIT____-NEXT: [[TMP1:%.*]] = call i32 @nc1(i32* nofree [[Q]], i32* nocapture nofree [[P]], i1 noundef false) #[[ATTR5]] |
| ; IS__TUNIT____-NEXT: ret void |
| ; |
| ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind willreturn |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@nc2 |
| ; IS__CGSCC____-SAME: (i32* nocapture nofree align 4 [[P:%.*]], i32* nofree [[Q:%.*]]) #[[ATTR5]] { |
| ; IS__CGSCC____-NEXT: [[TMP1:%.*]] = call i32 @nc1(i32* nofree [[Q]], i32* nocapture nofree align 4 [[P]], i1 noundef false) #[[ATTR16:[0-9]+]] |
| ; IS__CGSCC____-NEXT: ret void |
| ; |
| %1 = call i32 @nc1(i32* %q, i32* %p, i1 0) ; <i32> [#uses=0] |
| ret void |
| } |
| |
| |
| define void @nc3(void ()* %p) { |
| ; CHECK-LABEL: define {{[^@]+}}@nc3 |
| ; CHECK-SAME: (void ()* nocapture nofree noundef nonnull [[P:%.*]]) { |
| ; CHECK-NEXT: call void [[P]]() |
| ; CHECK-NEXT: ret void |
| ; |
| call void %p() |
| ret void |
| } |
| |
| ; The following test is tricky because improvements to AAIsDead can cause the call to be removed. |
| ; FIXME: readonly and nocapture missing on the pointer. |
| declare void @external(i8* readonly) nounwind argmemonly |
| define void @nc4(i8* %p) { |
| ; IS__TUNIT____: Function Attrs: argmemonly nounwind |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@nc4 |
| ; IS__TUNIT____-SAME: (i8* [[P:%.*]]) #[[ATTR6:[0-9]+]] { |
| ; IS__TUNIT____-NEXT: call void @external(i8* readonly [[P]]) #[[ATTR18:[0-9]+]] |
| ; IS__TUNIT____-NEXT: ret void |
| ; |
| ; IS__CGSCC____: Function Attrs: argmemonly nounwind |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@nc4 |
| ; IS__CGSCC____-SAME: (i8* [[P:%.*]]) #[[ATTR6:[0-9]+]] { |
| ; IS__CGSCC____-NEXT: call void @external(i8* readonly [[P]]) #[[ATTR21:[0-9]+]] |
| ; IS__CGSCC____-NEXT: ret void |
| ; |
| call void @external(i8* %p) |
| ret void |
| } |
| |
| define void @nc5(void (i8*)* %f, i8* %p) { |
| ; CHECK-LABEL: define {{[^@]+}}@nc5 |
| ; CHECK-SAME: (void (i8*)* nocapture nofree noundef nonnull [[F:%.*]], i8* nocapture [[P:%.*]]) { |
| ; CHECK-NEXT: call void [[F]](i8* nocapture [[P]]) |
| ; CHECK-NEXT: ret void |
| ; |
| call void %f(i8* %p) readonly nounwind |
| call void %f(i8* nocapture %p) |
| ret void |
| } |
| |
| ; It would be acceptable to add readnone to %y1_1 and %y1_2. |
| define void @test1_1(i8* %x1_1, i8* %y1_1, i1 %c) { |
| ; CHECK: Function Attrs: nofree nosync nounwind writeonly |
| ; CHECK-LABEL: define {{[^@]+}}@test1_1 |
| ; CHECK-SAME: (i8* nocapture nofree readnone [[X1_1:%.*]], i8* nocapture nofree readnone [[Y1_1:%.*]], i1 [[C:%.*]]) #[[ATTR7:[0-9]+]] { |
| ; CHECK-NEXT: [[TMP1:%.*]] = call i8* @test1_2(i8* noalias nocapture nofree readnone undef, i8* noalias nofree readnone "no-capture-maybe-returned" [[Y1_1]], i1 [[C]]) #[[ATTR7]] |
| ; CHECK-NEXT: store i32* null, i32** @g, align 8 |
| ; CHECK-NEXT: ret void |
| ; |
| call i8* @test1_2(i8* %x1_1, i8* %y1_1, i1 %c) |
| store i32* null, i32** @g |
| ret void |
| } |
| |
| define i8* @test1_2(i8* %x1_2, i8* %y1_2, i1 %c) { |
| ; IS________OPM: Function Attrs: nofree nosync nounwind writeonly |
| ; IS________OPM-LABEL: define {{[^@]+}}@test1_2 |
| ; IS________OPM-SAME: (i8* nocapture nofree readnone [[X1_2:%.*]], i8* nofree readnone returned "no-capture-maybe-returned" [[Y1_2:%.*]], i1 [[C:%.*]]) #[[ATTR7]] { |
| ; IS________OPM-NEXT: br i1 [[C]], label [[T:%.*]], label [[F:%.*]] |
| ; IS________OPM: t: |
| ; IS________OPM-NEXT: call void @test1_1(i8* noalias nocapture nofree readnone undef, i8* noalias nocapture nofree readnone [[Y1_2]], i1 [[C]]) #[[ATTR7]] |
| ; IS________OPM-NEXT: store i32* null, i32** @g, align 8 |
| ; IS________OPM-NEXT: br label [[F]] |
| ; IS________OPM: f: |
| ; IS________OPM-NEXT: ret i8* [[Y1_2]] |
| ; |
| ; IS________NPM: Function Attrs: nofree nosync nounwind writeonly |
| ; IS________NPM-LABEL: define {{[^@]+}}@test1_2 |
| ; IS________NPM-SAME: (i8* nocapture nofree readnone [[X1_2:%.*]], i8* nofree readnone returned "no-capture-maybe-returned" [[Y1_2:%.*]], i1 [[C:%.*]]) #[[ATTR7]] { |
| ; IS________NPM-NEXT: br i1 [[C]], label [[T:%.*]], label [[F:%.*]] |
| ; IS________NPM: t: |
| ; IS________NPM-NEXT: call void @test1_1(i8* noalias nocapture nofree readnone undef, i8* noalias nocapture nofree readnone [[Y1_2]], i1 noundef [[C]]) #[[ATTR7]] |
| ; IS________NPM-NEXT: store i32* null, i32** @g, align 8 |
| ; IS________NPM-NEXT: br label [[F]] |
| ; IS________NPM: f: |
| ; IS________NPM-NEXT: ret i8* [[Y1_2]] |
| ; |
| br i1 %c, label %t, label %f |
| t: |
| call void @test1_1(i8* %x1_2, i8* %y1_2, i1 %c) |
| store i32* null, i32** @g |
| br label %f |
| f: |
| ret i8* %y1_2 |
| } |
| |
| define void @test2(i8* %x2) { |
| ; IS__TUNIT____: Function Attrs: nofree noreturn nosync nounwind readnone willreturn |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@test2 |
| ; IS__TUNIT____-SAME: (i8* nocapture nofree readnone [[X2:%.*]]) #[[ATTR8:[0-9]+]] { |
| ; IS__TUNIT____-NEXT: unreachable |
| ; |
| ; IS__CGSCC____: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@test2 |
| ; IS__CGSCC____-SAME: (i8* nocapture nofree readnone [[X2:%.*]]) #[[ATTR8:[0-9]+]] { |
| ; IS__CGSCC____-NEXT: unreachable |
| ; |
| call void @test2(i8* %x2) |
| store i32* null, i32** @g |
| ret void |
| } |
| |
| define void @test3(i8* %x3, i8* %y3, i8* %z3) { |
| ; IS__TUNIT____: Function Attrs: nofree noreturn nosync nounwind readnone willreturn |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@test3 |
| ; IS__TUNIT____-SAME: (i8* nocapture nofree readnone [[X3:%.*]], i8* nocapture nofree readnone [[Y3:%.*]], i8* nocapture nofree readnone [[Z3:%.*]]) #[[ATTR8]] { |
| ; IS__TUNIT____-NEXT: unreachable |
| ; |
| ; IS__CGSCC____: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@test3 |
| ; IS__CGSCC____-SAME: (i8* nocapture nofree readnone [[X3:%.*]], i8* nocapture nofree readnone [[Y3:%.*]], i8* nocapture nofree readnone [[Z3:%.*]]) #[[ATTR8]] { |
| ; IS__CGSCC____-NEXT: unreachable |
| ; |
| call void @test3(i8* %z3, i8* %y3, i8* %x3) |
| store i32* null, i32** @g |
| ret void |
| } |
| |
| define void @test4_1(i8* %x4_1, i1 %c) { |
| ; CHECK: Function Attrs: nofree nosync nounwind writeonly |
| ; CHECK-LABEL: define {{[^@]+}}@test4_1 |
| ; CHECK-SAME: (i8* nocapture nofree readnone [[X4_1:%.*]], i1 [[C:%.*]]) #[[ATTR7]] { |
| ; CHECK-NEXT: [[TMP1:%.*]] = call i8* @test4_2(i8* noalias nocapture nofree readnone undef, i8* noalias nofree readnone "no-capture-maybe-returned" [[X4_1]], i8* noalias nocapture nofree readnone undef, i1 [[C]]) #[[ATTR7]] |
| ; CHECK-NEXT: store i32* null, i32** @g, align 8 |
| ; CHECK-NEXT: ret void |
| ; |
| call i8* @test4_2(i8* %x4_1, i8* %x4_1, i8* %x4_1, i1 %c) |
| store i32* null, i32** @g |
| ret void |
| } |
| |
| define i8* @test4_2(i8* %x4_2, i8* %y4_2, i8* %z4_2, i1 %c) { |
| ; IS________OPM: Function Attrs: nofree nosync nounwind writeonly |
| ; IS________OPM-LABEL: define {{[^@]+}}@test4_2 |
| ; IS________OPM-SAME: (i8* nocapture nofree readnone [[X4_2:%.*]], i8* nofree readnone returned "no-capture-maybe-returned" [[Y4_2:%.*]], i8* nocapture nofree readnone [[Z4_2:%.*]], i1 [[C:%.*]]) #[[ATTR7]] { |
| ; IS________OPM-NEXT: br i1 [[C]], label [[T:%.*]], label [[F:%.*]] |
| ; IS________OPM: t: |
| ; IS________OPM-NEXT: call void @test4_1(i8* noalias nocapture nofree noundef readnone align 4294967296 null, i1 [[C]]) #[[ATTR7]] |
| ; IS________OPM-NEXT: store i32* null, i32** @g, align 8 |
| ; IS________OPM-NEXT: br label [[F]] |
| ; IS________OPM: f: |
| ; IS________OPM-NEXT: ret i8* [[Y4_2]] |
| ; |
| ; IS________NPM: Function Attrs: nofree nosync nounwind writeonly |
| ; IS________NPM-LABEL: define {{[^@]+}}@test4_2 |
| ; IS________NPM-SAME: (i8* nocapture nofree readnone [[X4_2:%.*]], i8* nofree readnone returned "no-capture-maybe-returned" [[Y4_2:%.*]], i8* nocapture nofree readnone [[Z4_2:%.*]], i1 [[C:%.*]]) #[[ATTR7]] { |
| ; IS________NPM-NEXT: br i1 [[C]], label [[T:%.*]], label [[F:%.*]] |
| ; IS________NPM: t: |
| ; IS________NPM-NEXT: call void @test4_1(i8* noalias nocapture nofree noundef readnone align 4294967296 null, i1 noundef [[C]]) #[[ATTR7]] |
| ; IS________NPM-NEXT: store i32* null, i32** @g, align 8 |
| ; IS________NPM-NEXT: br label [[F]] |
| ; IS________NPM: f: |
| ; IS________NPM-NEXT: ret i8* [[Y4_2]] |
| ; |
| br i1 %c, label %t, label %f |
| t: |
| call void @test4_1(i8* null, i1 %c) |
| store i32* null, i32** @g |
| br label %f |
| f: |
| ret i8* %y4_2 |
| } |
| |
| declare i8* @test5_1(i8* %x5_1) |
| |
| define void @test5_2(i8* %x5_2) { |
| ; CHECK-LABEL: define {{[^@]+}}@test5_2 |
| ; CHECK-SAME: (i8* [[X5_2:%.*]]) { |
| ; CHECK-NEXT: [[TMP1:%.*]] = call i8* @test5_1(i8* [[X5_2]]) |
| ; CHECK-NEXT: store i32* null, i32** @g, align 8 |
| ; CHECK-NEXT: ret void |
| ; |
| call i8* @test5_1(i8* %x5_2) |
| store i32* null, i32** @g |
| ret void |
| } |
| |
| declare void @test6_1(i8* %x6_1, i8* nocapture %y6_1, ...) |
| |
| define void @test6_2(i8* %x6_2, i8* %y6_2, i8* %z6_2) { |
| ; CHECK-LABEL: define {{[^@]+}}@test6_2 |
| ; CHECK-SAME: (i8* [[X6_2:%.*]], i8* nocapture [[Y6_2:%.*]], i8* [[Z6_2:%.*]]) { |
| ; CHECK-NEXT: call void (i8*, i8*, ...) @test6_1(i8* [[X6_2]], i8* nocapture [[Y6_2]], i8* [[Z6_2]]) |
| ; CHECK-NEXT: store i32* null, i32** @g, align 8 |
| ; CHECK-NEXT: ret void |
| ; |
| call void (i8*, i8*, ...) @test6_1(i8* %x6_2, i8* %y6_2, i8* %z6_2) |
| store i32* null, i32** @g |
| ret void |
| } |
| |
| define void @test_cmpxchg(i32* %p) { |
| ; IS__TUNIT____: Function Attrs: argmemonly nofree nounwind willreturn |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@test_cmpxchg |
| ; IS__TUNIT____-SAME: (i32* nocapture nofree noundef nonnull dereferenceable(4) [[P:%.*]]) #[[ATTR9:[0-9]+]] { |
| ; IS__TUNIT____-NEXT: [[TMP1:%.*]] = cmpxchg i32* [[P]], i32 0, i32 1 acquire monotonic, align 4 |
| ; IS__TUNIT____-NEXT: ret void |
| ; |
| ; IS__CGSCC____: Function Attrs: argmemonly nofree norecurse nounwind willreturn |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@test_cmpxchg |
| ; IS__CGSCC____-SAME: (i32* nocapture nofree noundef nonnull dereferenceable(4) [[P:%.*]]) #[[ATTR9:[0-9]+]] { |
| ; IS__CGSCC____-NEXT: [[TMP1:%.*]] = cmpxchg i32* [[P]], i32 0, i32 1 acquire monotonic, align 4 |
| ; IS__CGSCC____-NEXT: ret void |
| ; |
| cmpxchg i32* %p, i32 0, i32 1 acquire monotonic |
| ret void |
| } |
| |
| define void @test_cmpxchg_ptr(i32** %p, i32* %q) { |
| ; IS__TUNIT____: Function Attrs: argmemonly nofree nounwind willreturn |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@test_cmpxchg_ptr |
| ; IS__TUNIT____-SAME: (i32** nocapture nofree noundef nonnull dereferenceable(8) [[P:%.*]], i32* nofree [[Q:%.*]]) #[[ATTR9]] { |
| ; IS__TUNIT____-NEXT: [[TMP1:%.*]] = cmpxchg i32** [[P]], i32* null, i32* [[Q]] acquire monotonic, align 8 |
| ; IS__TUNIT____-NEXT: ret void |
| ; |
| ; IS__CGSCC____: Function Attrs: argmemonly nofree norecurse nounwind willreturn |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@test_cmpxchg_ptr |
| ; IS__CGSCC____-SAME: (i32** nocapture nofree noundef nonnull dereferenceable(8) [[P:%.*]], i32* nofree [[Q:%.*]]) #[[ATTR9]] { |
| ; IS__CGSCC____-NEXT: [[TMP1:%.*]] = cmpxchg i32** [[P]], i32* null, i32* [[Q]] acquire monotonic, align 8 |
| ; IS__CGSCC____-NEXT: ret void |
| ; |
| cmpxchg i32** %p, i32* null, i32* %q acquire monotonic |
| ret void |
| } |
| |
| define void @test_atomicrmw(i32* %p) { |
| ; IS__TUNIT____: Function Attrs: argmemonly nofree nounwind willreturn |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@test_atomicrmw |
| ; IS__TUNIT____-SAME: (i32* nocapture nofree noundef nonnull dereferenceable(4) [[P:%.*]]) #[[ATTR9]] { |
| ; IS__TUNIT____-NEXT: [[TMP1:%.*]] = atomicrmw add i32* [[P]], i32 1 seq_cst, align 4 |
| ; IS__TUNIT____-NEXT: ret void |
| ; |
| ; IS__CGSCC____: Function Attrs: argmemonly nofree norecurse nounwind willreturn |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@test_atomicrmw |
| ; IS__CGSCC____-SAME: (i32* nocapture nofree noundef nonnull dereferenceable(4) [[P:%.*]]) #[[ATTR9]] { |
| ; IS__CGSCC____-NEXT: [[TMP1:%.*]] = atomicrmw add i32* [[P]], i32 1 seq_cst, align 4 |
| ; IS__CGSCC____-NEXT: ret void |
| ; |
| atomicrmw add i32* %p, i32 1 seq_cst |
| ret void |
| } |
| |
| define void @test_volatile(i32* %x) { |
| ; IS__TUNIT____: Function Attrs: argmemonly nofree nounwind willreturn |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@test_volatile |
| ; IS__TUNIT____-SAME: (i32* nofree align 4 [[X:%.*]]) #[[ATTR9]] { |
| ; IS__TUNIT____-NEXT: entry: |
| ; IS__TUNIT____-NEXT: [[GEP:%.*]] = getelementptr i32, i32* [[X]], i64 1 |
| ; IS__TUNIT____-NEXT: store volatile i32 0, i32* [[GEP]], align 4 |
| ; IS__TUNIT____-NEXT: ret void |
| ; |
| ; IS__CGSCC____: Function Attrs: argmemonly nofree norecurse nounwind willreturn |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@test_volatile |
| ; IS__CGSCC____-SAME: (i32* nofree align 4 [[X:%.*]]) #[[ATTR9]] { |
| ; IS__CGSCC____-NEXT: entry: |
| ; IS__CGSCC____-NEXT: [[GEP:%.*]] = getelementptr i32, i32* [[X]], i64 1 |
| ; IS__CGSCC____-NEXT: store volatile i32 0, i32* [[GEP]], align 4 |
| ; IS__CGSCC____-NEXT: ret void |
| ; |
| entry: |
| %gep = getelementptr i32, i32* %x, i64 1 |
| store volatile i32 0, i32* %gep, align 4 |
| ret void |
| } |
| |
| define void @nocaptureLaunder(i8* %p) { |
| ; IS__TUNIT____: Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@nocaptureLaunder |
| ; IS__TUNIT____-SAME: (i8* nocapture nofree [[P:%.*]]) #[[ATTR10:[0-9]+]] { |
| ; IS__TUNIT____-NEXT: entry: |
| ; IS__TUNIT____-NEXT: [[B:%.*]] = call i8* @llvm.launder.invariant.group.p0i8(i8* nofree [[P]]) #[[ATTR19:[0-9]+]] |
| ; IS__TUNIT____-NEXT: store i8 42, i8* [[B]], align 1 |
| ; IS__TUNIT____-NEXT: ret void |
| ; |
| ; IS__CGSCC____: Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@nocaptureLaunder |
| ; IS__CGSCC____-SAME: (i8* nocapture nofree [[P:%.*]]) #[[ATTR10:[0-9]+]] { |
| ; IS__CGSCC____-NEXT: entry: |
| ; IS__CGSCC____-NEXT: [[B:%.*]] = call i8* @llvm.launder.invariant.group.p0i8(i8* nofree [[P]]) #[[ATTR22:[0-9]+]] |
| ; IS__CGSCC____-NEXT: store i8 42, i8* [[B]], align 1 |
| ; IS__CGSCC____-NEXT: ret void |
| ; |
| entry: |
| %b = call i8* @llvm.launder.invariant.group.p0i8(i8* %p) |
| store i8 42, i8* %b |
| ret void |
| } |
| |
| @g2 = global i8* null |
| define void @captureLaunder(i8* %p) { |
| ; IS__TUNIT____: Function Attrs: nofree nosync nounwind willreturn |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@captureLaunder |
| ; IS__TUNIT____-SAME: (i8* nofree [[P:%.*]]) #[[ATTR5]] { |
| ; IS__TUNIT____-NEXT: [[B:%.*]] = call i8* @llvm.launder.invariant.group.p0i8(i8* nofree [[P]]) #[[ATTR19]] |
| ; IS__TUNIT____-NEXT: store i8* [[B]], i8** @g2, align 8 |
| ; IS__TUNIT____-NEXT: ret void |
| ; |
| ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@captureLaunder |
| ; IS__CGSCC____-SAME: (i8* nofree [[P:%.*]]) #[[ATTR11:[0-9]+]] { |
| ; IS__CGSCC____-NEXT: [[B:%.*]] = call i8* @llvm.launder.invariant.group.p0i8(i8* nofree [[P]]) #[[ATTR22]] |
| ; IS__CGSCC____-NEXT: store i8* [[B]], i8** @g2, align 8 |
| ; IS__CGSCC____-NEXT: ret void |
| ; |
| %b = call i8* @llvm.launder.invariant.group.p0i8(i8* %p) |
| store i8* %b, i8** @g2 |
| ret void |
| } |
| |
| define void @nocaptureStrip(i8* %p) { |
| ; IS__TUNIT____: Function Attrs: argmemonly nofree nosync nounwind willreturn writeonly |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@nocaptureStrip |
| ; IS__TUNIT____-SAME: (i8* nocapture nofree writeonly [[P:%.*]]) #[[ATTR11:[0-9]+]] { |
| ; IS__TUNIT____-NEXT: entry: |
| ; IS__TUNIT____-NEXT: [[B:%.*]] = call i8* @llvm.strip.invariant.group.p0i8(i8* noalias nofree readnone [[P]]) #[[ATTR20:[0-9]+]] |
| ; IS__TUNIT____-NEXT: store i8 42, i8* [[B]], align 1 |
| ; IS__TUNIT____-NEXT: ret void |
| ; |
| ; IS__CGSCC____: Function Attrs: argmemonly nofree nosync nounwind willreturn writeonly |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@nocaptureStrip |
| ; IS__CGSCC____-SAME: (i8* nocapture nofree writeonly [[P:%.*]]) #[[ATTR12:[0-9]+]] { |
| ; IS__CGSCC____-NEXT: entry: |
| ; IS__CGSCC____-NEXT: [[B:%.*]] = call i8* @llvm.strip.invariant.group.p0i8(i8* noalias nofree readnone [[P]]) #[[ATTR20]] |
| ; IS__CGSCC____-NEXT: store i8 42, i8* [[B]], align 1 |
| ; IS__CGSCC____-NEXT: ret void |
| ; |
| entry: |
| %b = call i8* @llvm.strip.invariant.group.p0i8(i8* %p) |
| store i8 42, i8* %b |
| ret void |
| } |
| |
| @g3 = global i8* null |
| define void @captureStrip(i8* %p) { |
| ; IS__TUNIT____: Function Attrs: nofree nosync nounwind willreturn writeonly |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@captureStrip |
| ; IS__TUNIT____-SAME: (i8* nofree writeonly [[P:%.*]]) #[[ATTR1]] { |
| ; IS__TUNIT____-NEXT: [[B:%.*]] = call i8* @llvm.strip.invariant.group.p0i8(i8* noalias nofree readnone [[P]]) #[[ATTR20]] |
| ; IS__TUNIT____-NEXT: store i8* [[B]], i8** @g3, align 8 |
| ; IS__TUNIT____-NEXT: ret void |
| ; |
| ; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn writeonly |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@captureStrip |
| ; IS__CGSCC____-SAME: (i8* nofree writeonly [[P:%.*]]) #[[ATTR13:[0-9]+]] { |
| ; IS__CGSCC____-NEXT: [[B:%.*]] = call i8* @llvm.strip.invariant.group.p0i8(i8* noalias nofree readnone [[P]]) #[[ATTR20]] |
| ; IS__CGSCC____-NEXT: store i8* [[B]], i8** @g3, align 8 |
| ; IS__CGSCC____-NEXT: ret void |
| ; |
| %b = call i8* @llvm.strip.invariant.group.p0i8(i8* %p) |
| store i8* %b, i8** @g3 |
| ret void |
| } |
| |
| define i1 @captureICmp(i32* %x) { |
| ; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@captureICmp |
| ; IS__TUNIT____-SAME: (i32* nofree readnone [[X:%.*]]) #[[ATTR0]] { |
| ; IS__TUNIT____-NEXT: [[TMP1:%.*]] = icmp eq i32* [[X]], null |
| ; IS__TUNIT____-NEXT: ret i1 [[TMP1]] |
| ; |
| ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@captureICmp |
| ; IS__CGSCC____-SAME: (i32* nofree readnone [[X:%.*]]) #[[ATTR0]] { |
| ; IS__CGSCC____-NEXT: [[TMP1:%.*]] = icmp eq i32* [[X]], null |
| ; IS__CGSCC____-NEXT: ret i1 [[TMP1]] |
| ; |
| %1 = icmp eq i32* %x, null |
| ret i1 %1 |
| } |
| |
| define i1 @captureICmpRev(i32* %x) { |
| ; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@captureICmpRev |
| ; IS__TUNIT____-SAME: (i32* nofree readnone [[X:%.*]]) #[[ATTR0]] { |
| ; IS__TUNIT____-NEXT: [[TMP1:%.*]] = icmp eq i32* null, [[X]] |
| ; IS__TUNIT____-NEXT: ret i1 [[TMP1]] |
| ; |
| ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@captureICmpRev |
| ; IS__CGSCC____-SAME: (i32* nofree readnone [[X:%.*]]) #[[ATTR0]] { |
| ; IS__CGSCC____-NEXT: [[TMP1:%.*]] = icmp eq i32* null, [[X]] |
| ; IS__CGSCC____-NEXT: ret i1 [[TMP1]] |
| ; |
| %1 = icmp eq i32* null, %x |
| ret i1 %1 |
| } |
| |
| define i1 @nocaptureInboundsGEPICmp(i32* %x) { |
| ; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@nocaptureInboundsGEPICmp |
| ; IS__TUNIT____-SAME: (i32* nocapture nofree readnone [[X:%.*]]) #[[ATTR0]] { |
| ; IS__TUNIT____-NEXT: ret i1 false |
| ; |
| ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@nocaptureInboundsGEPICmp |
| ; IS__CGSCC____-SAME: (i32* nocapture nofree readnone [[X:%.*]]) #[[ATTR0]] { |
| ; IS__CGSCC____-NEXT: ret i1 false |
| ; |
| %1 = getelementptr inbounds i32, i32* %x, i32 5 |
| %2 = bitcast i32* %1 to i8* |
| %3 = icmp eq i8* %2, null |
| ret i1 %3 |
| } |
| |
| define i1 @nocaptureInboundsGEPICmpRev(i32* %x) { |
| ; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@nocaptureInboundsGEPICmpRev |
| ; IS__TUNIT____-SAME: (i32* nocapture nofree readnone [[X:%.*]]) #[[ATTR0]] { |
| ; IS__TUNIT____-NEXT: ret i1 true |
| ; |
| ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@nocaptureInboundsGEPICmpRev |
| ; IS__CGSCC____-SAME: (i32* nocapture nofree readnone [[X:%.*]]) #[[ATTR0]] { |
| ; IS__CGSCC____-NEXT: ret i1 true |
| ; |
| %1 = getelementptr inbounds i32, i32* %x, i32 5 |
| %2 = bitcast i32* %1 to i8* |
| %3 = icmp ne i8* null, %2 |
| ret i1 %3 |
| } |
| |
| define i1 @nocaptureDereferenceableOrNullICmp(i32* dereferenceable_or_null(4) %x) { |
| ; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@nocaptureDereferenceableOrNullICmp |
| ; IS__TUNIT____-SAME: (i32* nocapture nofree readnone dereferenceable_or_null(4) [[X:%.*]]) #[[ATTR0]] { |
| ; IS__TUNIT____-NEXT: [[TMP1:%.*]] = bitcast i32* [[X]] to i8* |
| ; IS__TUNIT____-NEXT: [[TMP2:%.*]] = icmp eq i8* [[TMP1]], null |
| ; IS__TUNIT____-NEXT: ret i1 [[TMP2]] |
| ; |
| ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@nocaptureDereferenceableOrNullICmp |
| ; IS__CGSCC____-SAME: (i32* nocapture nofree readnone dereferenceable_or_null(4) [[X:%.*]]) #[[ATTR0]] { |
| ; IS__CGSCC____-NEXT: [[TMP1:%.*]] = bitcast i32* [[X]] to i8* |
| ; IS__CGSCC____-NEXT: [[TMP2:%.*]] = icmp eq i8* [[TMP1]], null |
| ; IS__CGSCC____-NEXT: ret i1 [[TMP2]] |
| ; |
| %1 = bitcast i32* %x to i8* |
| %2 = icmp eq i8* %1, null |
| ret i1 %2 |
| } |
| |
| define i1 @captureDereferenceableOrNullICmp(i32* dereferenceable_or_null(4) %x) null_pointer_is_valid { |
| ; IS__TUNIT____: Function Attrs: nofree nosync nounwind null_pointer_is_valid readnone willreturn |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@captureDereferenceableOrNullICmp |
| ; IS__TUNIT____-SAME: (i32* nofree readnone dereferenceable_or_null(4) [[X:%.*]]) #[[ATTR12:[0-9]+]] { |
| ; IS__TUNIT____-NEXT: [[TMP1:%.*]] = bitcast i32* [[X]] to i8* |
| ; IS__TUNIT____-NEXT: [[TMP2:%.*]] = icmp eq i8* [[TMP1]], null |
| ; IS__TUNIT____-NEXT: ret i1 [[TMP2]] |
| ; |
| ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind null_pointer_is_valid readnone willreturn |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@captureDereferenceableOrNullICmp |
| ; IS__CGSCC____-SAME: (i32* nofree readnone dereferenceable_or_null(4) [[X:%.*]]) #[[ATTR14:[0-9]+]] { |
| ; IS__CGSCC____-NEXT: [[TMP1:%.*]] = bitcast i32* [[X]] to i8* |
| ; IS__CGSCC____-NEXT: [[TMP2:%.*]] = icmp eq i8* [[TMP1]], null |
| ; IS__CGSCC____-NEXT: ret i1 [[TMP2]] |
| ; |
| %1 = bitcast i32* %x to i8* |
| %2 = icmp eq i8* %1, null |
| ret i1 %2 |
| } |
| |
| declare void @unknown(i8*) |
| ; We know that 'null' in AS 0 does not alias anything and cannot be captured. Though the latter is not qurried -> derived atm. |
| define void @test_callsite() { |
| ; CHECK-LABEL: define {{[^@]+}}@test_callsite() { |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: call void @unknown(i8* noalias nocapture noundef align 4294967296 null) |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| call void @unknown(i8* null) |
| ret void |
| } |
| |
| declare i8* @unknownpi8pi8(i8*,i8* returned) |
| define i8* @test_returned1(i8* %A, i8* returned %B) nounwind readonly { |
| ; CHECK: Function Attrs: nounwind readonly |
| ; CHECK-LABEL: define {{[^@]+}}@test_returned1 |
| ; CHECK-SAME: (i8* nocapture readonly [[A:%.*]], i8* readonly returned [[B:%.*]]) #[[ATTR4]] { |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[P:%.*]] = call i8* @unknownpi8pi8(i8* [[A]], i8* [[B]]) |
| ; CHECK-NEXT: ret i8* [[B]] |
| ; |
| entry: |
| %p = call i8* @unknownpi8pi8(i8* %A, i8* %B) |
| ret i8* %p |
| } |
| |
| define i8* @test_returned2(i8* %A, i8* %B) { |
| ; CHECK: Function Attrs: nounwind readonly |
| ; CHECK-LABEL: define {{[^@]+}}@test_returned2 |
| ; CHECK-SAME: (i8* nocapture readonly [[A:%.*]], i8* readonly returned [[B:%.*]]) #[[ATTR4]] { |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[P:%.*]] = call i8* @unknownpi8pi8(i8* readonly [[A]], i8* readonly [[B]]) #[[ATTR4]] |
| ; CHECK-NEXT: ret i8* [[B]] |
| ; |
| entry: |
| %p = call i8* @unknownpi8pi8(i8* %A, i8* %B) nounwind readonly |
| ret i8* %p |
| } |
| |
| declare i8* @maybe_returned_ptr(i8* readonly %ptr) readonly nounwind willreturn |
| declare i8 @maybe_returned_val(i8* %ptr) readonly nounwind willreturn |
| declare void @val_use(i8 %ptr) readonly nounwind willreturn |
| |
| ; FIXME: Both pointers should be nocapture |
| define void @ptr_uses(i8* %ptr, i8* %wptr) { |
| ; IS__TUNIT____: Function Attrs: nounwind willreturn |
| ; IS__TUNIT____-LABEL: define {{[^@]+}}@ptr_uses |
| ; IS__TUNIT____-SAME: (i8* [[PTR:%.*]], i8* nocapture nofree noundef nonnull writeonly dereferenceable(1) [[WPTR:%.*]]) #[[ATTR14:[0-9]+]] { |
| ; IS__TUNIT____-NEXT: store i8 0, i8* [[WPTR]], align 1 |
| ; IS__TUNIT____-NEXT: ret void |
| ; |
| ; IS__CGSCC____: Function Attrs: nounwind willreturn |
| ; IS__CGSCC____-LABEL: define {{[^@]+}}@ptr_uses |
| ; IS__CGSCC____-SAME: (i8* [[PTR:%.*]], i8* nocapture nofree noundef nonnull writeonly dereferenceable(1) [[WPTR:%.*]]) #[[ATTR16]] { |
| ; IS__CGSCC____-NEXT: store i8 0, i8* [[WPTR]], align 1 |
| ; IS__CGSCC____-NEXT: ret void |
| ; |
| %call_ptr = call i8* @maybe_returned_ptr(i8* %ptr) |
| %call_val = call i8 @maybe_returned_val(i8* %call_ptr) |
| call void @val_use(i8 %call_val) |
| store i8 0, i8* %wptr |
| ret void |
| } |
| |
| declare i8* @llvm.launder.invariant.group.p0i8(i8*) |
| declare i8* @llvm.strip.invariant.group.p0i8(i8*) |
| ;. |
| ; IS__TUNIT____: attributes #[[ATTR0]] = { nofree nosync nounwind readnone willreturn } |
| ; IS__TUNIT____: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn writeonly } |
| ; IS__TUNIT____: attributes #[[ATTR2]] = { nofree nosync nounwind readonly willreturn } |
| ; IS__TUNIT____: attributes #[[ATTR3]] = { readonly } |
| ; IS__TUNIT____: attributes #[[ATTR4]] = { nounwind readonly } |
| ; IS__TUNIT____: attributes #[[ATTR5]] = { nofree nosync nounwind willreturn } |
| ; IS__TUNIT____: attributes #[[ATTR6]] = { argmemonly nounwind } |
| ; IS__TUNIT____: attributes #[[ATTR7]] = { nofree nosync nounwind writeonly } |
| ; IS__TUNIT____: attributes #[[ATTR8]] = { nofree noreturn nosync nounwind readnone willreturn } |
| ; IS__TUNIT____: attributes #[[ATTR9]] = { argmemonly nofree nounwind willreturn } |
| ; IS__TUNIT____: attributes #[[ATTR10]] = { inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn } |
| ; IS__TUNIT____: attributes #[[ATTR11]] = { argmemonly nofree nosync nounwind willreturn writeonly } |
| ; IS__TUNIT____: attributes #[[ATTR12]] = { nofree nosync nounwind null_pointer_is_valid readnone willreturn } |
| ; IS__TUNIT____: attributes #[[ATTR13:[0-9]+]] = { nounwind readonly willreturn } |
| ; IS__TUNIT____: attributes #[[ATTR14]] = { nounwind willreturn } |
| ; IS__TUNIT____: attributes #[[ATTR15:[0-9]+]] = { inaccessiblememonly nofree nosync nounwind speculatable willreturn } |
| ; IS__TUNIT____: attributes #[[ATTR16:[0-9]+]] = { nofree nosync nounwind readnone speculatable willreturn } |
| ; IS__TUNIT____: attributes #[[ATTR17]] = { nofree nounwind readnone willreturn } |
| ; IS__TUNIT____: attributes #[[ATTR18]] = { nounwind } |
| ; IS__TUNIT____: attributes #[[ATTR19]] = { willreturn } |
| ; IS__TUNIT____: attributes #[[ATTR20]] = { readnone willreturn } |
| ;. |
| ; IS__CGSCC____: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn } |
| ; IS__CGSCC____: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn writeonly } |
| ; IS__CGSCC____: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind readonly willreturn } |
| ; IS__CGSCC____: attributes #[[ATTR3]] = { readonly } |
| ; IS__CGSCC____: attributes #[[ATTR4]] = { nounwind readonly } |
| ; IS__CGSCC____: attributes #[[ATTR5]] = { nofree norecurse nosync nounwind willreturn } |
| ; IS__CGSCC____: attributes #[[ATTR6]] = { argmemonly nounwind } |
| ; IS__CGSCC____: attributes #[[ATTR7]] = { nofree nosync nounwind writeonly } |
| ; IS__CGSCC____: attributes #[[ATTR8]] = { nofree norecurse noreturn nosync nounwind readnone willreturn } |
| ; IS__CGSCC____: attributes #[[ATTR9]] = { argmemonly nofree norecurse nounwind willreturn } |
| ; IS__CGSCC____: attributes #[[ATTR10]] = { inaccessiblemem_or_argmemonly nofree nosync nounwind willreturn } |
| ; IS__CGSCC____: attributes #[[ATTR11]] = { nofree nosync nounwind willreturn } |
| ; IS__CGSCC____: attributes #[[ATTR12]] = { argmemonly nofree nosync nounwind willreturn writeonly } |
| ; IS__CGSCC____: attributes #[[ATTR13]] = { nofree nosync nounwind willreturn writeonly } |
| ; IS__CGSCC____: attributes #[[ATTR14]] = { nofree norecurse nosync nounwind null_pointer_is_valid readnone willreturn } |
| ; IS__CGSCC____: attributes #[[ATTR15:[0-9]+]] = { nounwind readonly willreturn } |
| ; IS__CGSCC____: attributes #[[ATTR16]] = { nounwind willreturn } |
| ; IS__CGSCC____: attributes #[[ATTR17:[0-9]+]] = { inaccessiblememonly nofree nosync nounwind speculatable willreturn } |
| ; IS__CGSCC____: attributes #[[ATTR18:[0-9]+]] = { nofree nosync nounwind readnone speculatable willreturn } |
| ; IS__CGSCC____: attributes #[[ATTR19]] = { nounwind willreturn writeonly } |
| ; IS__CGSCC____: attributes #[[ATTR20]] = { readnone willreturn } |
| ; IS__CGSCC____: attributes #[[ATTR21]] = { nounwind } |
| ; IS__CGSCC____: attributes #[[ATTR22]] = { willreturn } |
| ;. |
