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Summary: If bitcode reader gets an invalid branch weight, drop that from the inputs. This allows us to read the broken modules we generated before the verifier was able to catch this. rdar://64870641 Reviewers: yrouban, t.p.northover, dexonsmith, arphaman, aprantl Reviewed By: aprantl Subscribers: aprantl, hiraditya, jkorous, ributzka, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D83699
20 lines
573 B
LLVM
20 lines
573 B
LLVM
;; Test strip branch_weight if operand number doesn't match.
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;; Input bitcode is generated from:
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;; define void @test(i1 %0) {
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;; br i1 %0, label %2, label %3, !prof !0
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;; 2:
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;; br i1 %0, label %4, label %3, !prof !1
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;; 3:
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;; unreachable
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;; 4:
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;; ret void
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;; }
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;;!0 = !{!"branch_weights", i32 1, i32 2}
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;;!1 = !{!"branch_weights", i32 1, i32 2, i32 3}
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; RUN: llvm-dis %S/Inputs/branch-weight.bc -o - | FileCheck %s
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; CHECK: !prof !0
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; CHECK: !0 = !{!"branch_weights", i32 1, i32 2}
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; CHECK-NOT: !prof !1
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; CHECK-NOT: !1 = !{!"branch_weights", i32 1, i32 2, i32 3}
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