; RUN: opt -passes=alignment-from-assumptions -S < %s | FileCheck %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
%type1 = type { %type2 }
%type2 = type { [4 x i8] }
; Function Attrs: nounwind
declare void @llvm.assume(i1) #0
; Function Attrs: nounwind readnone
declare i32 @llvm.bswap.i32(i32) #1
; Function Attrs: nounwind uwtable
define void @test1() unnamed_addr #2 align 2 {
; CHECK-LABEL: @test1
entry:
br i1 undef, label %if.then, label %if.end
if.then: ; preds = %entry
unreachable
if.end: ; preds = %entry
br i1 undef, label %return, label %if.end8
if.end8: ; preds = %if.end
br i1 undef, label %if.then13, label %if.end14
if.then13: ; preds = %if.end8
unreachable
if.end14: ; preds = %if.end8
br i1 undef, label %cond.false.i129, label %cond.end.i136
cond.false.i129: ; preds = %if.end14
unreachable
cond.end.i136: ; preds = %if.end14
br i1 undef, label %land.lhs.true.i, label %if.end.i145
land.lhs.true.i: ; preds = %cond.end.i136
br i1 undef, label %if.end.i145, label %if.then.i137
if.then.i137: ; preds = %land.lhs.true.i
br i1 undef, label %cond.false8.i, label %cond.end9.i
cond.false8.i: ; preds = %if.then.i137
unreachable
cond.end9.i: ; preds = %if.then.i137
br i1 undef, label %if.then23, label %if.end24
if.end.i145: ; preds = %land.lhs.true.i, %cond.end.i136
unreachable
if.then23: ; preds = %cond.end9.i
unreachable
if.end24: ; preds = %cond.end9.i
br i1 undef, label %for.end, label %for.body.lr.ph
for.body.lr.ph: ; preds = %if.end24
unreachable
for.end: ; preds = %if.end24
br i1 undef, label %if.end123, label %if.then121
if.then121: ; preds = %for.end
unreachable
if.end123: ; preds = %for.end
br i1 undef, label %if.end150, label %if.then126
if.then126: ; preds = %if.end123
%ptrint.i.i185 = ptrtoint ptr undef to i64
%maskedptr.i.i186 = and i64 %ptrint.i.i185, 1
%maskcond.i.i187 = icmp eq i64 %maskedptr.i.i186, 0
tail call void @llvm.assume(i1 %maskcond.i.i187) #0
%ret.0.copyload.i.i189 = load i32, ptr undef, align 2
; CHECK: load {{.*}} align 2
%0 = tail call i32 @llvm.bswap.i32(i32 %ret.0.copyload.i.i189) #0
%conv131 = zext i32 %0 to i64
%add.ptr132 = getelementptr inbounds i8, ptr undef, i64 %conv131
br i1 undef, label %if.end150, label %if.end.i173
if.end.i173: ; preds = %if.then126
br i1 undef, label %test1.exit, label %cond.false.i.i.i.i174
cond.false.i.i.i.i174: ; preds = %if.end.i173
unreachable
test1.exit: ; preds = %if.end.i173
br i1 undef, label %test1a.exit, label %if.end.i124
if.end.i124: ; preds = %test1.exit
unreachable
test1a.exit: ; preds = %test1.exit
br i1 undef, label %if.end150, label %for.body137.lr.ph
for.body137.lr.ph: ; preds = %test1a.exit
br label %for.body137
for.body137: ; preds = %test1b.exit, %for.body137.lr.ph
%ShndxTable.0309 = phi ptr [ %add.ptr132, %for.body137.lr.ph ], [ %incdec.ptr, %test1b.exit ]
br i1 undef, label %for.body137.if.end146_crit_edge, label %if.then140
for.body137.if.end146_crit_edge: ; preds = %for.body137
%incdec.ptr = getelementptr inbounds %type1, ptr %ShndxTable.0309, i64 1
br i1 undef, label %cond.false.i70, label %cond.end.i
if.then140: ; preds = %for.body137
%ret.0.copyload.i.i102 = load i32, ptr %ShndxTable.0309, align 2
; CHECK: load {{.*}} align 2
unreachable
cond.false.i70: ; preds = %for.body137.if.end146_crit_edge
unreachable
cond.end.i: ; preds = %for.body137.if.end146_crit_edge
br i1 undef, label %test1b.exit, label %cond.false.i.i
cond.false.i.i: ; preds = %cond.end.i
unreachable
test1b.exit: ; preds = %cond.end.i
br i1 undef, label %if.end150, label %for.body137
if.end150: ; preds = %test1b.exit, %test1a.exit, %if.then126, %if.end123
br i1 undef, label %for.end176, label %for.body155.lr.ph
for.body155.lr.ph: ; preds = %if.end150
unreachable
for.end176: ; preds = %if.end150
unreachable
return: ; preds = %if.end
ret void
}
attributes #0 = { nounwind }
attributes #1 = { nounwind readnone }
attributes #2 = { nounwind uwtable }
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