You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
48 lines
1.1 KiB
48 lines
1.1 KiB
4 months ago
|
; RUN: opt -S -mergefunc < %s | FileCheck %s
|
||
|
|
|
||
|
|
define weak i32 @sum(i32 %x, i32 %y) {
|
||
|
|
%sum = add i32 %x, %y
|
||
|
|
%sum2 = add i32 %sum, %y
|
||
|
|
%sum3 = add i32 %sum2, %y
|
||
|
|
ret i32 %sum3
|
||
|
|
}
|
||
|
|
|
||
|
|
define weak i32 @add(i32 %x, i32 %y) {
|
||
|
|
%sum = add i32 %x, %y
|
||
|
|
%sum2 = add i32 %sum, %y
|
||
|
|
%sum3 = add i32 %sum2, %y
|
||
|
|
ret i32 %sum3
|
||
|
|
}
|
||
|
|
|
||
|
|
; Don't replace a weak function use by another equivalent function. We don't
|
||
|
|
; know whether the symbol that will ulitmately be linked is equivalent - we
|
||
|
|
; don't know that the weak definition is the definitive definition or whether it
|
||
|
|
; will be overriden by a stronger definition).
|
||
|
|
|
||
|
|
; CHECK-LABEL: define private i32 @0
|
||
|
|
; CHECK: add i32
|
||
|
|
; CHECK: add i32
|
||
|
|
; CHECK: add i32
|
||
|
|
; CHECK: ret
|
||
|
|
|
||
|
|
; CHECK-LABEL: define i32 @use_weak
|
||
|
|
; CHECK: call i32 @add
|
||
|
|
; CHECK: call i32 @sum
|
||
|
|
; CHECK: ret
|
||
|
|
|
||
|
|
; CHECK-LABEL: define weak i32 @sum
|
||
|
|
; CHECK: tail call i32 @0
|
||
|
|
; CHECK: ret
|
||
|
|
|
||
|
|
; CHECK-LABEL: define weak i32 @add
|
||
|
|
; CHECK: tail call i32 @0
|
||
|
|
; CHECK: ret
|
||
|
|
|
||
|
|
|
||
|
|
define i32 @use_weak(i32 %a, i32 %b) {
|
||
|
|
%res = call i32 @add(i32 %a, i32 %b)
|
||
|
|
%res2 = call i32 @sum(i32 %a, i32 %b)
|
||
|
|
%res3 = add i32 %res, %res2
|
||
|
|
ret i32 %res3
|
||
|
|
}
|