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llvm-mirror/test/CodeGen/ARM/sjljehprepare-lower-empty-struct.ll
Tim Northover cf7a7cf40d ARM: make sure backend is consistent about exception handling method.
It turns out we decide whether to use SjLj exceptions or some alternative in
two separate places in the backend, and they disagreed with each other. This
led to inconsistent code and is generally a terrible idea.

So make them consistent and add an assert that they *do* match (unfortunately
MCAsmInfo isn't available in opt, so it can't be used to initialise the CodeGen
version directly).

llvm-svn: 253502
2015-11-18 21:10:39 +00:00

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LLVM

; RUN: llc -mtriple=armv7-apple-ios -O0 < %s | FileCheck %s
; RUN: llc -mtriple=armv7-apple-ios -O1 < %s | FileCheck %s
; RUN: llc -mtriple=armv7-apple-ios -O2 < %s | FileCheck %s
; RUN: llc -mtriple=armv7-apple-ios -O3 < %s | FileCheck %s
; RUN: llc -mtriple=armv7k-apple-ios < %s | FileCheck %s
; SjLjEHPrepare shouldn't crash when lowering empty structs.
;
; Checks that between in case of empty structs used as arguments
; nothing happens, i.e. there are no instructions between
; __Unwind_SjLj_Register and actual @bar invocation
define i8* @foo(i8 %a, {} %c) personality i8* bitcast (i32 (...)* @baz to i8*) {
entry:
; CHECK: bl __Unwind_SjLj_Register
; CHECK-NEXT: {{[A-Z][a-zA-Z0-9]*}}:
; CHECK-NEXT: bl _bar
invoke void @bar ()
to label %unreachable unwind label %handler
unreachable:
unreachable
handler:
%tmp = landingpad { i8*, i32 }
cleanup
resume { i8*, i32 } undef
}
declare void @bar()
declare i32 @baz(...)