[WinEH] Emit .safeseh directives for all 32-bit exception handlers

Use a "safeseh" string attribute to do this. You would think we chould
just accumulate the set of personalities like we do on dwarf, but this
fails to account for the LSDA-loading thunks we use for
__CxxFrameHandler3. Each of those needs to make it into .sxdata as well.
The string attribute seemed like the most straightforward approach.

llvm-svn: 239448

2 files changed, 6 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/X86/win32-eh-states.ll b/llvm/test/CodeGen/X86/win32-eh-states.ll
index 8db127df6da..7bcd51c44f0 100644
--- a/llvm/test/CodeGen/X86/win32-eh-states.ll
+++ b/llvm/test/CodeGen/X86/win32-eh-states.ll
@@ -110,3 +110,5 @@ eh.resume:                                        ; preds = %catch.dispatch.4
 ; CHECK: movl $3, Lf$frame_escape_{{[0-9]+.*}}
 ; CHECK: movl $3, (%esp)
 ; CHECK: calll _may_throw
+
+; CHECK: .safeseh ___ehhandler$f
diff --git a/llvm/test/CodeGen/X86/win32-eh.ll b/llvm/test/CodeGen/X86/win32-eh.ll
index ed8402aeab0..3abaa49653b 100644
--- a/llvm/test/CodeGen/X86/win32-eh.ll
+++ b/llvm/test/CodeGen/X86/win32-eh.ll
@@ -126,3 +126,7 @@ catchall:
 ; CHECK-LABEL: ___ehhandler$use_CxxFrameHandler3:
 ; CHECK: movl $L__ehtable$use_CxxFrameHandler3, %eax
 ; CHECK: jmp  ___CxxFrameHandler3 # TAILCALL
+
+; CHECK: .safeseh __except_handler3
+; CHECK: .safeseh __except_handler4
+; CHECK: .safeseh ___ehhandler$use_CxxFrameHandler3