63dc31b68b
Reapply after https://github.com/llvm/llvm-project/pull/93548, which should address the lldb failure on macos. ----- Do not create icmp/fcmp constant expressions in IRBuilder etc anymore, i.e. treat them as "undesirable". This is in preparation for removing them entirely. Part of: https://discourse.llvm.org/t/rfc-remove-most-constant-expressions/63179
30 lines
884 B
LLVM
30 lines
884 B
LLVM
; RUN: opt -passes=jump-threading < %s -S -o - | FileCheck %s
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; Reproducer for PR47297.
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; The pass did previously not report a correct Modified status in the case
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; where a terminator's condition was successfully constant folded, but there
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; were no other transformations done. This was caught by the pass return
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; status check that is hidden under EXPENSIVE_CHECKS.
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; CHECK-LABEL: entry:
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; CHECK-NEXT: %.not = icmp eq i32 ptrtoint (ptr @a to i32), 0
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; CHECK-NEXT: br i1 %.not, label %overflow, label %cont
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@a = internal global i16 0
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define void @foo(i16 %d) {
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entry:
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%.not = icmp eq i32 ptrtoint (ptr @a to i32), 0
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br i1 %.not, label %overflow, label %cont
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overflow: ; preds = %entry
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call void @bar()
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br label %cont
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cont: ; preds = %overflow, %entry
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ret void
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}
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declare void @bar()
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