diff options
Diffstat (limited to 'testsuite/tests/javascript/opt/deadCodeElim.hs')
| -rw-r--r-- | testsuite/tests/javascript/opt/deadCodeElim.hs | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/testsuite/tests/javascript/opt/deadCodeElim.hs b/testsuite/tests/javascript/opt/deadCodeElim.hs new file mode 100644 index 0000000000..70f6aa6a74 --- /dev/null +++ b/testsuite/tests/javascript/opt/deadCodeElim.hs @@ -0,0 +1,96 @@ + +import GHC.JS.Optimizer +import GHC.JS.Syntax +import GHC.JS.Unsat.Syntax (Ident (..)) + +import GHC.Data.FastString + +double_return :: JStat +double_return = BlockStat [ ReturnStat (SatInt 0) + , ReturnStat (SatInt 1) + ] + +double_return_opt :: JStat +double_return_opt = (BlockStat [ReturnStat (SatInt 0)]) + +in_func :: JStat +in_func = AssignStat (jvar (fsLit "foo")) AssignOp (ValExpr (JFunc [] double_return)) + +in_func_opt :: JStat +in_func_opt = AssignStat (jvar (fsLit "foo")) AssignOp (ValExpr (JFunc [] double_return_opt)) + +nested_blocks :: JStat +nested_blocks = BlockStat [ double_return <> double_return + , double_return + ] <> double_return + +nested_blocks_opt :: JStat +nested_blocks_opt = double_return_opt + +global_func :: JStat +global_func = FuncStat (TxtI (fsLit "bar")) [] double_return + +global_func_opt :: JStat +global_func_opt = FuncStat (TxtI (fsLit "bar")) [] double_return_opt + +func_with_locals :: JStat +func_with_locals = AssignStat (jvar (fsLit "foo")) + AssignOp + (ValExpr (JFunc [] + (BlockStat [ AssignStat (jvar (fsLit "one")) AssignOp (SatInt 2) + , AssignStat (jvar (fsLit "two")) AssignOp (SatInt 3) + , ApplStat (jvar (fsLit "f")) [(SatInt 100)] + , ReturnStat (SatInt 0) + , ReturnStat (SatInt 1) + ]))) + +func_with_locals_opt :: JStat +func_with_locals_opt = AssignStat (jvar (fsLit "foo")) + AssignOp + (ValExpr (JFunc [] + (BlockStat [ AssignStat (jvar (fsLit "one")) AssignOp (SatInt 2) + , AssignStat (jvar (fsLit "two")) AssignOp (SatInt 3) + , ApplStat (jvar (fsLit "f")) [(SatInt 100)] + , ReturnStat (SatInt 0) + ]))) + +-- This one comes straight from MR10260 where we noticed the optimizer was not catching the redundant return +bignum_test :: JStat +bignum_test = DeclStat (TxtI $ fsLit "h$ghczmbignumZCGHCziNumziIntegerziintegerToInt64zh_e") + (Just (ValExpr $ JFunc [] $ BlockStat [ DeclStat (TxtI $ fsLit "h$$ghczmbignumZCGHCziNumziIntegerzids_s_2f9e") (Just (jvar $ fsLit "h$r2")) + , ApplStat (jvar $ fsLit "h$p1") [jvar $ fsLit "h$$ghczmbignumZCGHCziNumziInteger_99"] + , ReturnStat (ApplExpr (jvar $ fsLit "h$e") [jvar $ fsLit "h$$ghczmbignumZCGHCziNumziIntegerzids_s_2f9e"]) + , ReturnStat (ApplExpr (jvar $ fsLit "h$rs") [])])) + +bignum_test_opt :: JStat +bignum_test_opt = + DeclStat (TxtI $ fsLit "h$ghczmbignumZCGHCziNumziIntegerziintegerToInt64zh_e") + (Just (ValExpr $ JFunc [] $ BlockStat [ DeclStat (TxtI $ fsLit "h$$ghczmbignumZCGHCziNumziIntegerzids_s_2f9e") (Just (jvar $ fsLit "h$r2")) + , ApplStat (jvar $ fsLit "h$p1") [jvar $ fsLit "h$$ghczmbignumZCGHCziNumziInteger_99"] + , ReturnStat (ApplExpr (jvar $ fsLit "h$e") [jvar $ fsLit "h$$ghczmbignumZCGHCziNumziIntegerzids_s_2f9e"]) + ])) + +bignum_test_2 :: JStat +bignum_test_2 = BlockStat [FuncStat (TxtI $ fsLit "h$$ghczmbignumZCGHCziNumziInteger_99") [] (BlockStat [DeclStat (TxtI $ fsLit "h$ghczmbignumZCGHCziNumziIntegerziintegerToInt64zh_e") + (Just (ValExpr $ JFunc [] $ BlockStat [ DeclStat (TxtI $ fsLit "h$$ghczmbignumZCGHCziNumziIntegerzids_s_2f9e") (Just (jvar $ fsLit "h$r2")) + , ApplStat (jvar $ fsLit "h$p1") [jvar $ fsLit "h$$ghczmbignumZCGHCziNumziInteger_99"] + , ReturnStat (ApplExpr (jvar $ fsLit "h$e") [jvar $ fsLit "h$$ghczmbignumZCGHCziNumziIntegerzids_s_2f9e"]) + , ReturnStat (ApplExpr (jvar $ fsLit "h$rs") [])]))])] + +bignum_test_opt_2 :: JStat +bignum_test_opt_2 = BlockStat [FuncStat (TxtI $ fsLit "h$$ghczmbignumZCGHCziNumziInteger_99") [] (BlockStat [DeclStat (TxtI $ fsLit "h$ghczmbignumZCGHCziNumziIntegerziintegerToInt64zh_e") + (Just (ValExpr $ JFunc [] $ BlockStat [ DeclStat (TxtI $ fsLit "h$$ghczmbignumZCGHCziNumziIntegerzids_s_2f9e") (Just (jvar $ fsLit "h$r2")) + , ApplStat (jvar $ fsLit "h$p1") [jvar $ fsLit "h$$ghczmbignumZCGHCziNumziInteger_99"] + , ReturnStat (ApplExpr (jvar $ fsLit "h$e") [jvar $ fsLit "h$$ghczmbignumZCGHCziNumziIntegerzids_s_2f9e"]) + ]))])] + +main :: IO () +main = mapM_ print + [ jsOptimize double_return == double_return_opt + , jsOptimize in_func == in_func_opt + , jsOptimize nested_blocks == nested_blocks_opt + , jsOptimize global_func == global_func_opt + , jsOptimize func_with_locals == func_with_locals_opt + , jsOptimize bignum_test == bignum_test_opt + , jsOptimize bignum_test_2 == bignum_test_opt_2 + ] |