62 lines
2.3 KiB
LLVM
62 lines
2.3 KiB
LLVM
; RUN: opt -passes='loop(loop-reduce)' %s -o - -S | FileCheck %s
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; Required metadata to trigger previously failing assertion.
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target datalayout = "e-m:e-i64:64-n32:64"
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@f = external dso_local local_unnamed_addr global i32, align 4
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declare i32 @a() local_unnamed_addr
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declare i32 @e(i32) local_unnamed_addr
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define dso_local i32 @b() {
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entry:
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%call = tail call i32 @a()
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%tobool.not = icmp eq i32 %call, 0
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br i1 %tobool.not, label %cleanup.cont.critedge, label %if.then
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if.then: ; preds = %entry
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; It's ok to modify this test in the future should be able to split critical
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; edges here, just noting that this is the critical edge that we care about.
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; CHECK: callbr void asm sideeffect "", "X"(i8* blockaddress(@b, %cleanup.cont.critedge))
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; CHECK-NEXT: to label %return [label %cleanup.cont.critedge]
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callbr void asm sideeffect "", "X"(i8* blockaddress(@b, %cleanup.cont.critedge))
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to label %return [label %cleanup.cont.critedge]
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cleanup.cont.critedge: ; preds = %entry, %if.then
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br label %return
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return: ; preds = %if.then, %cleanup.cont.critedge
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%retval.0 = phi i32 [ 4, %cleanup.cont.critedge ], [ 0, %if.then ]
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ret i32 %retval.0
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}
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define dso_local i32 @do_pages_move_nr_pages() local_unnamed_addr {
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entry:
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br label %for.cond
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for.cond: ; preds = %if.end3, %entry
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%g.0 = phi i32 [ undef, %entry ], [ %inc, %if.end3 ]
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%0 = load i32, i32* @f, align 4
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%tobool.not = icmp eq i32 %0, 0
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br i1 %tobool.not, label %if.end3, label %if.then
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if.then: ; preds = %for.cond
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%call.i = tail call i32 @a()
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%tobool.not.i = icmp eq i32 %call.i, 0
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br i1 %tobool.not.i, label %if.then2, label %if.then.i
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if.then.i: ; preds = %if.then
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callbr void asm sideeffect "", "X"(i8* blockaddress(@do_pages_move_nr_pages, %if.then2))
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to label %if.end3 [label %if.then2]
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if.then2: ; preds = %if.then, %if.then.i
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%g.0.lcssa = phi i32 [ %g.0, %if.then ], [ %g.0, %if.then.i ]
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%call4 = tail call i32 @e(i32 %g.0.lcssa)
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ret i32 undef
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if.end3: ; preds = %for.cond, %if.then.i
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%inc = add nsw i32 %g.0, 1
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br label %for.cond
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}
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