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TheRock/compiler/amd-llvm/llvm/test/Transforms/MergeFunc/crash2.ll
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

55 lines
1.4 KiB
LLVM

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