321 lines
15 KiB
LLVM
321 lines
15 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes
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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=18 -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=21 -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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define i8 @test1(i32 %a, i32 %length) {
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; IS__TUNIT_OPM: Function Attrs: nofree nosync nounwind readnone
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; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@test1
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; IS__TUNIT_OPM-SAME: (i32 [[A:%.*]], i32 [[LENGTH:%.*]]) [[ATTR0:#.*]] {
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; IS__TUNIT_OPM-NEXT: entry:
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; IS__TUNIT_OPM-NEXT: br label [[LOOP:%.*]]
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; IS__TUNIT_OPM: loop:
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; IS__TUNIT_OPM-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[BACKEDGE:%.*]] ]
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; IS__TUNIT_OPM-NEXT: [[CND:%.*]] = icmp sge i32 [[IV]], 0
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; IS__TUNIT_OPM-NEXT: br i1 [[CND]], label [[BACKEDGE]], label [[EXIT:%.*]]
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; IS__TUNIT_OPM: backedge:
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; IS__TUNIT_OPM-NEXT: [[IV_NEXT]] = add nsw i32 [[IV]], 1
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; IS__TUNIT_OPM-NEXT: [[CONT:%.*]] = icmp slt i32 [[IV_NEXT]], 400
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; IS__TUNIT_OPM-NEXT: br i1 [[CONT]], label [[LOOP]], label [[EXIT]]
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; IS__TUNIT_OPM: exit:
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; IS__TUNIT_OPM-NEXT: ret i8 0
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;
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; IS__TUNIT_NPM: Function Attrs: nofree nosync nounwind readnone willreturn
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; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@test1
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; IS__TUNIT_NPM-SAME: (i32 [[A:%.*]], i32 [[LENGTH:%.*]]) [[ATTR0:#.*]] {
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; IS__TUNIT_NPM-NEXT: entry:
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; IS__TUNIT_NPM-NEXT: br label [[LOOP:%.*]]
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; IS__TUNIT_NPM: loop:
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; IS__TUNIT_NPM-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[BACKEDGE:%.*]] ]
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; IS__TUNIT_NPM-NEXT: br label [[BACKEDGE]]
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; IS__TUNIT_NPM: backedge:
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; IS__TUNIT_NPM-NEXT: [[IV_NEXT]] = add nsw i32 [[IV]], 1
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; IS__TUNIT_NPM-NEXT: [[CONT:%.*]] = icmp slt i32 [[IV_NEXT]], 400
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; IS__TUNIT_NPM-NEXT: br i1 [[CONT]], label [[LOOP]], label [[EXIT:%.*]]
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; IS__TUNIT_NPM: exit:
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; IS__TUNIT_NPM-NEXT: ret i8 0
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;
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; IS__CGSCC_OPM: Function Attrs: nofree norecurse nosync nounwind readnone
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; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@test1
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; IS__CGSCC_OPM-SAME: (i32 [[A:%.*]], i32 [[LENGTH:%.*]]) [[ATTR0:#.*]] {
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; IS__CGSCC_OPM-NEXT: entry:
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; IS__CGSCC_OPM-NEXT: br label [[LOOP:%.*]]
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; IS__CGSCC_OPM: loop:
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; IS__CGSCC_OPM-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[BACKEDGE:%.*]] ]
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; IS__CGSCC_OPM-NEXT: [[CND:%.*]] = icmp sge i32 [[IV]], 0
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; IS__CGSCC_OPM-NEXT: br i1 [[CND]], label [[BACKEDGE]], label [[EXIT:%.*]]
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; IS__CGSCC_OPM: backedge:
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; IS__CGSCC_OPM-NEXT: [[IV_NEXT]] = add nsw i32 [[IV]], 1
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; IS__CGSCC_OPM-NEXT: [[CONT:%.*]] = icmp slt i32 [[IV_NEXT]], 400
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; IS__CGSCC_OPM-NEXT: br i1 [[CONT]], label [[LOOP]], label [[EXIT]]
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; IS__CGSCC_OPM: exit:
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; IS__CGSCC_OPM-NEXT: ret i8 0
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;
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; IS__CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@test1
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; IS__CGSCC_NPM-SAME: (i32 [[A:%.*]], i32 [[LENGTH:%.*]]) [[ATTR0:#.*]] {
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; IS__CGSCC_NPM-NEXT: entry:
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; IS__CGSCC_NPM-NEXT: br label [[LOOP:%.*]]
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; IS__CGSCC_NPM: loop:
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; IS__CGSCC_NPM-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[BACKEDGE:%.*]] ]
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; IS__CGSCC_NPM-NEXT: br label [[BACKEDGE]]
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; IS__CGSCC_NPM: backedge:
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; IS__CGSCC_NPM-NEXT: [[IV_NEXT]] = add nsw i32 [[IV]], 1
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; IS__CGSCC_NPM-NEXT: [[CONT:%.*]] = icmp slt i32 [[IV_NEXT]], 400
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; IS__CGSCC_NPM-NEXT: br i1 [[CONT]], label [[LOOP]], label [[EXIT:%.*]]
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; IS__CGSCC_NPM: exit:
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; IS__CGSCC_NPM-NEXT: ret i8 0
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;
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entry:
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br label %loop
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loop:
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%iv = phi i32 [0, %entry], [%iv.next, %backedge]
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%cnd = icmp sge i32 %iv, 0
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br i1 %cnd, label %backedge, label %exit
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backedge:
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%iv.next = add nsw i32 %iv, 1
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%cont = icmp slt i32 %iv.next, 400
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br i1 %cont, label %loop, label %exit
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exit:
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ret i8 0
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}
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define i8 @test2(i32 %n) {
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; IS__TUNIT_OPM: Function Attrs: nofree nosync nounwind readnone
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; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@test2
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; IS__TUNIT_OPM-SAME: (i32 [[N:%.*]]) [[ATTR0]] {
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; IS__TUNIT_OPM-NEXT: entry:
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; IS__TUNIT_OPM-NEXT: br label [[LOOP:%.*]]
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; IS__TUNIT_OPM: loop:
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; IS__TUNIT_OPM-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[BACKEDGE:%.*]] ]
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; IS__TUNIT_OPM-NEXT: [[IV2:%.*]] = phi i32 [ [[N]], [[ENTRY]] ], [ [[IV2_NEXT:%.*]], [[BACKEDGE]] ]
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; IS__TUNIT_OPM-NEXT: [[CND1:%.*]] = icmp sge i32 [[IV]], 0
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; IS__TUNIT_OPM-NEXT: [[CND2:%.*]] = icmp sgt i32 [[IV2]], 0
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; IS__TUNIT_OPM-NEXT: [[CND:%.*]] = and i1 [[CND1]], [[CND2]]
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; IS__TUNIT_OPM-NEXT: br i1 [[CND]], label [[BACKEDGE]], label [[EXIT:%.*]]
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; IS__TUNIT_OPM: backedge:
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; IS__TUNIT_OPM-NEXT: [[IV_NEXT]] = add nsw i32 [[IV]], 1
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; IS__TUNIT_OPM-NEXT: [[IV2_NEXT]] = sub nsw i32 [[IV2]], 1
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; IS__TUNIT_OPM-NEXT: [[CONT1:%.*]] = icmp slt i32 [[IV_NEXT]], 400
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; IS__TUNIT_OPM-NEXT: [[CONT2:%.*]] = icmp sgt i32 [[IV2_NEXT]], 0
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; IS__TUNIT_OPM-NEXT: [[CONT:%.*]] = and i1 [[CONT1]], [[CONT2]]
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; IS__TUNIT_OPM-NEXT: br i1 [[CONT]], label [[LOOP]], label [[EXIT]]
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; IS__TUNIT_OPM: exit:
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; IS__TUNIT_OPM-NEXT: ret i8 0
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;
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; IS__TUNIT_NPM: Function Attrs: nofree nosync nounwind readnone willreturn
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; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@test2
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; IS__TUNIT_NPM-SAME: (i32 [[N:%.*]]) [[ATTR0]] {
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; IS__TUNIT_NPM-NEXT: entry:
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; IS__TUNIT_NPM-NEXT: br label [[LOOP:%.*]]
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; IS__TUNIT_NPM: loop:
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; IS__TUNIT_NPM-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[BACKEDGE:%.*]] ]
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; IS__TUNIT_NPM-NEXT: [[IV2:%.*]] = phi i32 [ [[N]], [[ENTRY]] ], [ [[IV2_NEXT:%.*]], [[BACKEDGE]] ]
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; IS__TUNIT_NPM-NEXT: [[CND1:%.*]] = icmp sge i32 [[IV]], 0
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; IS__TUNIT_NPM-NEXT: [[CND2:%.*]] = icmp sgt i32 [[IV2]], 0
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; IS__TUNIT_NPM-NEXT: [[CND:%.*]] = and i1 [[CND1]], [[CND2]]
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; IS__TUNIT_NPM-NEXT: br i1 [[CND]], label [[BACKEDGE]], label [[EXIT:%.*]]
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; IS__TUNIT_NPM: backedge:
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; IS__TUNIT_NPM-NEXT: [[IV_NEXT]] = add nsw i32 [[IV]], 1
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; IS__TUNIT_NPM-NEXT: [[IV2_NEXT]] = sub nsw i32 [[IV2]], 1
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; IS__TUNIT_NPM-NEXT: [[CONT1:%.*]] = icmp slt i32 [[IV_NEXT]], 400
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; IS__TUNIT_NPM-NEXT: [[CONT2:%.*]] = icmp sgt i32 [[IV2_NEXT]], 0
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; IS__TUNIT_NPM-NEXT: [[CONT:%.*]] = and i1 [[CONT1]], [[CONT2]]
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; IS__TUNIT_NPM-NEXT: br i1 [[CONT]], label [[LOOP]], label [[EXIT]]
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; IS__TUNIT_NPM: exit:
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; IS__TUNIT_NPM-NEXT: ret i8 0
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;
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; IS__CGSCC_OPM: Function Attrs: nofree norecurse nosync nounwind readnone
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; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@test2
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; IS__CGSCC_OPM-SAME: (i32 [[N:%.*]]) [[ATTR0]] {
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; IS__CGSCC_OPM-NEXT: entry:
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; IS__CGSCC_OPM-NEXT: br label [[LOOP:%.*]]
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; IS__CGSCC_OPM: loop:
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; IS__CGSCC_OPM-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[BACKEDGE:%.*]] ]
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; IS__CGSCC_OPM-NEXT: [[IV2:%.*]] = phi i32 [ [[N]], [[ENTRY]] ], [ [[IV2_NEXT:%.*]], [[BACKEDGE]] ]
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; IS__CGSCC_OPM-NEXT: [[CND1:%.*]] = icmp sge i32 [[IV]], 0
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; IS__CGSCC_OPM-NEXT: [[CND2:%.*]] = icmp sgt i32 [[IV2]], 0
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; IS__CGSCC_OPM-NEXT: [[CND:%.*]] = and i1 [[CND1]], [[CND2]]
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; IS__CGSCC_OPM-NEXT: br i1 [[CND]], label [[BACKEDGE]], label [[EXIT:%.*]]
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; IS__CGSCC_OPM: backedge:
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; IS__CGSCC_OPM-NEXT: [[IV_NEXT]] = add nsw i32 [[IV]], 1
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; IS__CGSCC_OPM-NEXT: [[IV2_NEXT]] = sub nsw i32 [[IV2]], 1
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; IS__CGSCC_OPM-NEXT: [[CONT1:%.*]] = icmp slt i32 [[IV_NEXT]], 400
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; IS__CGSCC_OPM-NEXT: [[CONT2:%.*]] = icmp sgt i32 [[IV2_NEXT]], 0
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; IS__CGSCC_OPM-NEXT: [[CONT:%.*]] = and i1 [[CONT1]], [[CONT2]]
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; IS__CGSCC_OPM-NEXT: br i1 [[CONT]], label [[LOOP]], label [[EXIT]]
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; IS__CGSCC_OPM: exit:
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; IS__CGSCC_OPM-NEXT: ret i8 0
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;
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; IS__CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@test2
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; IS__CGSCC_NPM-SAME: (i32 [[N:%.*]]) [[ATTR0]] {
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; IS__CGSCC_NPM-NEXT: entry:
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; IS__CGSCC_NPM-NEXT: br label [[LOOP:%.*]]
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; IS__CGSCC_NPM: loop:
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; IS__CGSCC_NPM-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[BACKEDGE:%.*]] ]
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; IS__CGSCC_NPM-NEXT: [[IV2:%.*]] = phi i32 [ [[N]], [[ENTRY]] ], [ [[IV2_NEXT:%.*]], [[BACKEDGE]] ]
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; IS__CGSCC_NPM-NEXT: [[CND1:%.*]] = icmp sge i32 [[IV]], 0
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; IS__CGSCC_NPM-NEXT: [[CND2:%.*]] = icmp sgt i32 [[IV2]], 0
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; IS__CGSCC_NPM-NEXT: [[CND:%.*]] = and i1 [[CND1]], [[CND2]]
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; IS__CGSCC_NPM-NEXT: br i1 [[CND]], label [[BACKEDGE]], label [[EXIT:%.*]]
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; IS__CGSCC_NPM: backedge:
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; IS__CGSCC_NPM-NEXT: [[IV_NEXT]] = add nsw i32 [[IV]], 1
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; IS__CGSCC_NPM-NEXT: [[IV2_NEXT]] = sub nsw i32 [[IV2]], 1
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; IS__CGSCC_NPM-NEXT: [[CONT1:%.*]] = icmp slt i32 [[IV_NEXT]], 400
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; IS__CGSCC_NPM-NEXT: [[CONT2:%.*]] = icmp sgt i32 [[IV2_NEXT]], 0
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; IS__CGSCC_NPM-NEXT: [[CONT:%.*]] = and i1 [[CONT1]], [[CONT2]]
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; IS__CGSCC_NPM-NEXT: br i1 [[CONT]], label [[LOOP]], label [[EXIT]]
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; IS__CGSCC_NPM: exit:
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; IS__CGSCC_NPM-NEXT: ret i8 0
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;
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entry:
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br label %loop
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loop:
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%iv = phi i32 [0, %entry], [%iv.next, %backedge]
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%iv2 = phi i32 [%n, %entry], [%iv2.next, %backedge]
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%cnd1 = icmp sge i32 %iv, 0
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%cnd2 = icmp sgt i32 %iv2, 0
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%cnd = and i1 %cnd1, %cnd2
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br i1 %cnd, label %backedge, label %exit
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backedge:
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%iv.next = add nsw i32 %iv, 1
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%iv2.next = sub nsw i32 %iv2, 1
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%cont1 = icmp slt i32 %iv.next, 400
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%cont2 = icmp sgt i32 %iv2.next, 0
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%cont = and i1 %cont1, %cont2
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br i1 %cont, label %loop, label %exit
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exit:
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ret i8 0
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}
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; Merging cont block into do block.
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define i32 @test3(i32 %i, i1 %f, i32 %n) {
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; IS________OPM-LABEL: define {{[^@]+}}@test3
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; IS________OPM-SAME: (i32 [[I:%.*]], i1 [[F:%.*]], i32 [[N:%.*]]) {
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; IS________OPM-NEXT: entry:
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; IS________OPM-NEXT: [[C:%.*]] = icmp ne i32 [[I]], -2134
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; IS________OPM-NEXT: br i1 [[C]], label [[DO:%.*]], label [[EXIT:%.*]]
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; IS________OPM: exit:
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; IS________OPM-NEXT: [[C1:%.*]] = icmp ne i32 [[I]], -42
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; IS________OPM-NEXT: br i1 [[C1]], label [[EXIT2:%.*]], label [[EXIT]]
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; IS________OPM: cont:
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; IS________OPM-NEXT: [[COND_3:%.*]] = icmp sgt i32 [[I]], [[N]]
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; IS________OPM-NEXT: br i1 [[COND_3]], label [[EXIT2]], label [[EXIT]]
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; IS________OPM: do:
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; IS________OPM-NEXT: [[COND_0:%.*]] = icmp sgt i32 [[I]], 0
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; IS________OPM-NEXT: [[CONSUME:%.*]] = call i32 @consume(i1 [[COND_0]])
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; IS________OPM-NEXT: [[COND:%.*]] = icmp eq i32 [[I]], 0
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; IS________OPM-NEXT: call void (i1, ...) @llvm.experimental.guard(i1 [[COND]]) [ "deopt"() ]
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; IS________OPM-NEXT: [[COND_2:%.*]] = icmp sgt i32 [[I]], 0
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; IS________OPM-NEXT: br i1 [[COND_2]], label [[EXIT]], label [[CONT:%.*]]
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; IS________OPM: exit2:
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; IS________OPM-NEXT: ret i32 30
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;
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; IS________NPM-LABEL: define {{[^@]+}}@test3
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; IS________NPM-SAME: (i32 [[I:%.*]], i1 [[F:%.*]], i32 [[N:%.*]]) {
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; IS________NPM-NEXT: entry:
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; IS________NPM-NEXT: [[C:%.*]] = icmp ne i32 [[I]], -2134
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; IS________NPM-NEXT: br i1 [[C]], label [[DO:%.*]], label [[EXIT:%.*]]
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; IS________NPM: exit:
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; IS________NPM-NEXT: [[C1:%.*]] = icmp ne i32 [[I]], -42
|
||
|
|
; IS________NPM-NEXT: br i1 [[C1]], label [[EXIT2:%.*]], label [[EXIT]]
|
||
|
|
; IS________NPM: cont:
|
||
|
|
; IS________NPM-NEXT: [[COND_3:%.*]] = icmp sgt i32 [[I]], [[N]]
|
||
|
|
; IS________NPM-NEXT: br i1 [[COND_3]], label [[EXIT2]], label [[EXIT]]
|
||
|
|
; IS________NPM: do:
|
||
|
|
; IS________NPM-NEXT: [[COND_0:%.*]] = icmp sgt i32 [[I]], 0
|
||
|
|
; IS________NPM-NEXT: [[CONSUME:%.*]] = call i32 @consume(i1 [[COND_0]])
|
||
|
|
; IS________NPM-NEXT: [[COND:%.*]] = icmp eq i32 [[I]], 0
|
||
|
|
; IS________NPM-NEXT: call void (i1, ...) @llvm.experimental.guard(i1 [[COND]]) [ "deopt"() ]
|
||
|
|
; IS________NPM-NEXT: br label [[CONT:%.*]]
|
||
|
|
; IS________NPM: exit2:
|
||
|
|
; IS________NPM-NEXT: ret i32 30
|
||
|
|
;
|
||
|
|
entry:
|
||
|
|
%c = icmp ne i32 %i, -2134
|
||
|
|
br i1 %c, label %do, label %exit
|
||
|
|
|
||
|
|
exit:
|
||
|
|
%c1 = icmp ne i32 %i, -42
|
||
|
|
br i1 %c1, label %exit2, label %exit
|
||
|
|
|
||
|
|
; Here cont is merged to do and i is any value except -2134.
|
||
|
|
; i is not the single value: zero.
|
||
|
|
cont:
|
||
|
|
%cond.3 = icmp sgt i32 %i, %n
|
||
|
|
br i1 %cond.3, label %exit2, label %exit
|
||
|
|
|
||
|
|
do:
|
||
|
|
%cond.0 = icmp sgt i32 %i, 0
|
||
|
|
%consume = call i32 @consume(i1 %cond.0)
|
||
|
|
%cond = icmp eq i32 %i, 0
|
||
|
|
call void (i1, ...) @llvm.experimental.guard(i1 %cond) [ "deopt"() ]
|
||
|
|
%cond.2 = icmp sgt i32 %i, 0
|
||
|
|
br i1 %cond.2, label %exit, label %cont
|
||
|
|
|
||
|
|
exit2:
|
||
|
|
; LatticeVal for: 'i32 %i' is: constantrange<-2134, 1>
|
||
|
|
ret i32 30
|
||
|
|
}
|
||
|
|
|
||
|
|
; FIXME: We should be able to merge cont into do.
|
||
|
|
; FIXME: COND should be replaced with false. This will be fixed by improving LVI.
|
||
|
|
define i32 @test4(i32 %i, i1 %f, i32 %n) {
|
||
|
|
; CHECK-LABEL: define {{[^@]+}}@test4
|
||
|
|
; CHECK-SAME: (i32 [[I:%.*]], i1 [[F:%.*]], i32 [[N:%.*]]) {
|
||
|
|
; CHECK-NEXT: entry:
|
||
|
|
; CHECK-NEXT: [[C:%.*]] = icmp ne i32 [[I]], -2134
|
||
|
|
; CHECK-NEXT: br i1 [[C]], label [[DO:%.*]], label [[EXIT:%.*]]
|
||
|
|
; CHECK: exit:
|
||
|
|
; CHECK-NEXT: [[C1:%.*]] = icmp ne i32 [[I]], -42
|
||
|
|
; CHECK-NEXT: br i1 [[C1]], label [[EXIT2:%.*]], label [[EXIT]]
|
||
|
|
; CHECK: cont:
|
||
|
|
; CHECK-NEXT: call void @dummy(i1 [[F]]) [[ATTR2:#.*]]
|
||
|
|
; CHECK-NEXT: br label [[EXIT2]]
|
||
|
|
; CHECK: do:
|
||
|
|
; CHECK-NEXT: call void @dummy(i1 [[F]]) [[ATTR2]]
|
||
|
|
; CHECK-NEXT: [[CONSUME:%.*]] = call i32 @exit()
|
||
|
|
; CHECK-NEXT: call void @llvm.assume(i1 noundef [[F]])
|
||
|
|
; CHECK-NEXT: [[COND:%.*]] = icmp eq i1 [[F]], false
|
||
|
|
; CHECK-NEXT: br i1 [[COND]], label [[EXIT]], label [[CONT:%.*]]
|
||
|
|
; CHECK: exit2:
|
||
|
|
; CHECK-NEXT: ret i32 30
|
||
|
|
;
|
||
|
|
entry:
|
||
|
|
%c = icmp ne i32 %i, -2134
|
||
|
|
br i1 %c, label %do, label %exit
|
||
|
|
|
||
|
|
exit: ; preds = %do, %cont, %exit, %entry
|
||
|
|
%c1 = icmp ne i32 %i, -42
|
||
|
|
br i1 %c1, label %exit2, label %exit
|
||
|
|
|
||
|
|
cont: ; preds = %do
|
||
|
|
call void @dummy(i1 %f)
|
||
|
|
br label %exit2
|
||
|
|
|
||
|
|
do: ; preds = %entry
|
||
|
|
call void @dummy(i1 %f)
|
||
|
|
%consume = call i32 @exit()
|
||
|
|
call void @llvm.assume(i1 %f)
|
||
|
|
%cond = icmp eq i1 %f, false
|
||
|
|
br i1 %cond, label %exit, label %cont
|
||
|
|
|
||
|
|
exit2: ; preds = %cont, %exit
|
||
|
|
ret i32 30
|
||
|
|
}
|
||
|
|
|
||
|
|
declare i32 @exit()
|
||
|
|
declare i32 @consume(i1)
|
||
|
|
declare void @llvm.assume(i1) nounwind
|
||
|
|
declare void @dummy(i1) nounwind
|
||
|
|
declare void @llvm.experimental.guard(i1, ...)
|