thread-two-bbs-msvc.ll
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; RUN: opt < %s -jump-threading -S -verify | FileCheck %s
target datalayout = "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-pc-windows-msvc19.16.27026"
; Verify that we do *not* thread any edge. On Windows, we used to
; improperly duplicate EH pads like bb_cleanup below, resulting in an
; assertion failure later down the pass pipeline.
define void @foo([2 x i8]* %0) personality i8* bitcast (i32 ()* @baz to i8*) {
; CHECK-LABEL: @foo
; CHECK-NOT: bb_{{[^ ]*}}.thread:
entry:
invoke void @bar()
to label %bb_invoke unwind label %bb_cleanuppad
bb_invoke:
invoke void @bar()
to label %bb_exit unwind label %bb_cleanuppad
bb_cleanuppad:
%index = phi i64 [ 1, %bb_invoke ], [ 0, %entry ]
%cond1 = phi i1 [ false, %bb_invoke ], [ true, %entry ]
%1 = cleanuppad within none []
br i1 %cond1, label %bb_action, label %bb_cleanupret
bb_action:
%cond2 = icmp eq i64 %index, 0
br i1 %cond2, label %bb_cleanupret, label %bb_exit
bb_exit:
call void @bar()
ret void
bb_cleanupret:
cleanupret from %1 unwind to caller
}
declare void @bar()
declare i32 @baz()