diff options
| author | Heejin Ahn <aheejin@gmail.com> | 2018-08-21 21:23:07 +0000 |
|---|---|---|
| committer | Heejin Ahn <aheejin@gmail.com> | 2018-08-21 21:23:07 +0000 |
| commit | 78d191089182842f6360547c48993e44de9e1437 (patch) | |
| tree | 4c74fb81a64effca22778f64765ad7585e9630b6 /llvm/test/CodeGen | |
| parent | 1d78503f6a3c71d9862d5009224cba27b237a883 (diff) | |
| download | bcm5719-llvm-78d191089182842f6360547c48993e44de9e1437.tar.gz bcm5719-llvm-78d191089182842f6360547c48993e44de9e1437.zip | |
[WebAssembly] Restore __stack_pointer after catch instructions
Summary:
After the stack is unwound due to a thrown exception, the
`__stack_pointer` global can point to an invalid address. This inserts
instructions that restore `__stack_pointer` global.
Reviewers: jgravelle-google, dschuff
Subscribers: mgorny, sbc100, sunfish, llvm-commits
Differential Revision: https://reviews.llvm.org/D50980
llvm-svn: 340339
Diffstat (limited to 'llvm/test/CodeGen')
| -rw-r--r-- | llvm/test/CodeGen/WebAssembly/exception.ll | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/WebAssembly/exception.ll b/llvm/test/CodeGen/WebAssembly/exception.ll index 2519ffcc78c..a0256d23891 100644 --- a/llvm/test/CodeGen/WebAssembly/exception.ll +++ b/llvm/test/CodeGen/WebAssembly/exception.ll @@ -19,9 +19,11 @@ define void @test_throw() { } ; CHECK-LABEL: test_catch_rethrow: +; CHECK: get_global $push{{.+}}=, __stack_pointer@GLOBAL ; CHECK: try ; CHECK: call foo@FUNCTION ; CHECK: i32.catch $push{{.+}}=, 0 +; CHECK: set_global __stack_pointer@GLOBAL ; CHECK-DAG: i32.store __wasm_lpad_context ; CHECK-DAG: i32.store __wasm_lpad_context+4 ; CHECK: i32.call $push{{.+}}=, _Unwind_CallPersonality@FUNCTION @@ -63,6 +65,7 @@ try.cont: ; preds = %entry, %catch ; CHECK: try ; CHECK: call foo@FUNCTION ; CHECK: catch_all +; CHECK: set_global __stack_pointer@GLOBAL ; CHECK: i32.call $push{{.+}}=, _ZN7CleanupD1Ev@FUNCTION ; CHECK: rethrow ; CHECK: end_try @@ -161,10 +164,12 @@ terminate10: ; preds = %ehcleanup7 ; CHECK: call foo@FUNCTION ; CHECK: i32.catch ; CHECK-NOT: get_global $push{{.+}}=, __stack_pointer@GLOBAL +; CHECK: set_global __stack_pointer@GLOBAL ; CHECK: try ; CHECK: call foo@FUNCTION ; CHECK: catch_all ; CHECK-NOT: get_global $push{{.+}}=, __stack_pointer@GLOBAL +; CHECK: set_global __stack_pointer@GLOBAL ; CHECK: call __cxa_end_catch@FUNCTION ; CHECK-NOT: set_global __stack_pointer@GLOBAL, $pop{{.+}} ; CHECK: end_try |
