diff options
Diffstat (limited to 'test/Transforms/IPConstantProp/return-constants.ll')
-rw-r--r-- | test/Transforms/IPConstantProp/return-constants.ll | 39 |
1 files changed, 30 insertions, 9 deletions
diff --git a/test/Transforms/IPConstantProp/return-constants.ll b/test/Transforms/IPConstantProp/return-constants.ll index 40567f80bd..7205c2820a 100644 --- a/test/Transforms/IPConstantProp/return-constants.ll +++ b/test/Transforms/IPConstantProp/return-constants.ll @@ -1,20 +1,41 @@ -; RUN: llvm-as < %s | opt -ipconstprop | llvm-dis | grep {add i32 21, 21} +; RUN: llvm-as < %s | opt -ipconstprop | llvm-dis > %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 %C) { - br i1 %C, label %T, label %F +define internal {i32, i32} @foo(i1 %Q) { + br i1 %Q, label %T, label %F T: ; preds = %0 - ret i32 21, i32 21 + ret i32 21, i32 22 F: ; preds = %0 - ret i32 21, i32 21 + ret i32 21, i32 23 } -define i32 @caller(i1 %C) { - %X = call {i32, i32} @foo( i1 %C ) +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 = add i32 %A, %B - ret i32 %Y + %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 } |