llvm-project/llvm/test/Transforms/MergeFunc/merge-weak-crash.ll

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; RUN: opt -S -mergefunc < %s | FileCheck %s
; CHECK-LABEL: define i32 @func1
; CHECK: call i32 @func2
; CHECK: ret
; CHECK-LABEL: define i32 @func2
; CHECK: call i32 @unknown
; CHECK: ret
; CHECK-LABEL: define i32 @func4
; CHECK: call i32 @func2
; CHECK: ret
; CHECK-LABEL: define weak i32 @func3_weak
; CHECK: call i32 @func1
; CHECK: ret
define i32 @func1(i32 %x, i32 %y) {
%sum = add i32 %x, %y
%sum2 = add i32 %sum, %y
%sum3 = call i32 @func4(i32 %sum, i32 %sum2)
ret i32 %sum3
}
define i32 @func4(i32 %x, i32 %y) {
%sum = add i32 %x, %y
%sum2 = add i32 %sum, %y
%sum3 = call i32 @unknown(i32 %sum, i32 %sum2)
ret i32 %sum3
}
define weak i32 @func3_weak(i32 %x, i32 %y) {
%sum = add i32 %x, %y
%sum2 = add i32 %sum, %y
%sum3 = call i32 @func2(i32 %sum, i32 %sum2)
ret i32 %sum3
}
define i32 @func2(i32 %x, i32 %y) {
%sum = add i32 %x, %y
%sum2 = add i32 %sum, %y
%sum3 = call i32 @unknown(i32 %sum, i32 %sum2)
ret i32 %sum3
}
declare i32 @unknown(i32 %x, i32 %y)