forked from OSchip/llvm-project
55 lines
1.5 KiB
LLVM
55 lines
1.5 KiB
LLVM
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; RUN: opt %s -mergefunc -globalopt -S -o - | FileCheck %s
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; Make sure we don't crash on this example. This test is supposed to test that
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; MergeFunctions clears its GlobalNumbers value map. If this map still contains
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; entries when running globalopt and the MergeFunctions instance is still alive
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; the optimization of @G would cause an assert because globalopt would do an
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; RAUW on @G which still exists as an entry in the GlobalNumbers ValueMap which
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; causes an assert in the ValueHandle call back because we are RAUWing with a
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; different type (AllocaInst) than its key type (GlobalValue).
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@G = internal global i8** null
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@G2 = internal global i8** null
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define i32 @main(i32 %argc, i8** %argv) norecurse {
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; CHECK: alloca
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store i8** %argv, i8*** @G
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ret i32 0
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}
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define internal i8** @dead1(i64 %p) {
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call void @right(i64 %p)
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call void @right(i64 %p)
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call void @right(i64 %p)
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call void @right(i64 %p)
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%tmp = load i8**, i8*** @G
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ret i8** %tmp
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}
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define internal i8** @dead2(i64 %p) {
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call void @right(i64 %p)
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call void @right(i64 %p)
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call void @right(i64 %p)
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call void @right(i64 %p)
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%tmp = load i8**, i8*** @G2
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ret i8** %tmp
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}
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define void @left(i64 %p) {
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entry-block:
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call void @right(i64 %p)
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call void @right(i64 %p)
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call void @right(i64 %p)
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call void @right(i64 %p)
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ret void
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}
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define void @right(i64 %p) {
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entry-block:
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call void @left(i64 %p)
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call void @left(i64 %p)
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call void @left(i64 %p)
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call void @left(i64 %p)
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ret void
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}
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