62c3443e96
Passes LLVM codegen and Emscripten link-time flags for exception handling if and only if the panic strategy is `unwind`. Sets the default panic strategy for Emscripten targets to `unwind`. Re-enables tests that depend on unwinding support for Emscripten, including `should_panic` tests.
34 lines
906 B
Rust
34 lines
906 B
Rust
// ignore-msvc
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// ignore-wasm32-bare compiled with panic=abort by default
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// compile-flags: -O -C no-prepopulate-passes
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#![crate_type="lib"]
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struct S;
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impl Drop for S {
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fn drop(&mut self) {
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}
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}
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fn might_unwind() {
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}
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// CHECK-LABEL: @test
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#[no_mangle]
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pub fn test() {
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let _s = S;
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// Check that the personality slot alloca gets a lifetime start in each cleanup block, not just
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// in the first one.
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// CHECK: [[SLOT:%[0-9]+]] = alloca { i8*, i32 }
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// CHECK-LABEL: cleanup:
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// CHECK: [[BITCAST:%[0-9]+]] = bitcast { i8*, i32 }* [[SLOT]] to i8*
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// CHECK-NEXT: call void @llvm.lifetime.start.{{.*}}({{.*}}, i8* [[BITCAST]])
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// CHECK-LABEL: cleanup1:
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// CHECK: [[BITCAST1:%[0-9]+]] = bitcast { i8*, i32 }* [[SLOT]] to i8*
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// CHECK-NEXT: call void @llvm.lifetime.start.{{.*}}({{.*}}, i8* [[BITCAST1]])
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might_unwind();
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let _t = S;
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might_unwind();
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}
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