1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41
  
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      ; RUN: opt < %s -ipconstprop -S > %t
;; Check that the 21 constants got propagated properly
; RUN: cat %t | grep {%M = add i32 21, 21}
;; Check that the second return values didn't get propagated
; RUN: cat %t | grep {%N = add i32 %B, %D}
define internal {i32, i32} @foo(i1 %Q) {
        br i1 %Q, label %T, label %F
T:              ; preds = %0
        ret i32 21, i32 22
F:              ; preds = %0
        ret i32 21, i32 23
}
define internal {i32, i32} @bar(i1 %Q) {
        %A = insertvalue { i32, i32 } undef, i32 21, 0
        br i1 %Q, label %T, label %F
T:              ; preds = %0
        %B = insertvalue { i32, i32 } %A, i32 22, 1
        ret { i32, i32 } %B
F:              ; preds = %0
        %C = insertvalue { i32, i32 } %A, i32 23, 1
        ret { i32, i32 } %C
}
define { i32, i32 } @caller(i1 %Q) {
        %X = call {i32, i32} @foo( i1 %Q )
        %A = getresult {i32, i32} %X, 0
        %B = getresult {i32, i32} %X, 1
        %Y = call {i32, i32} @bar( i1 %Q )
        %C = extractvalue {i32, i32} %Y, 0
        %D = extractvalue {i32, i32} %Y, 1
        %M = add i32 %A, %C
        %N = add i32 %B, %D
        ret { i32, i32 } %X
}
 
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