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llvm-mirror/test/CodeGen/X86/2008-03-14-SpillerCrash.ll
Rafael Espindola d866898775 Reject alias to undefined symbols in the verifier.
On ELF and COFF an alias is just another name for a position in the file.
There is no way to refer to a position in another file, so an alias to
undefined is meaningless.

MachO currently doesn't support aliases. The spec has a N_INDR, which when
implemented will have a different set of restrictions. Adding support for
it shouldn't be harder than any other IR extension.

For now, having the IR represent what is actually possible with current
tools makes it easier to fix the design of GlobalAlias.

llvm-svn: 203705
2014-03-12 20:15:49 +00:00

51 lines
2.3 KiB
LLVM

; RUN: llc < %s -mtriple=i386-pc-linux-gnu
; PR2138
%struct.__locale_struct = type { [13 x %struct.locale_data*], i16*, i32*, i32*, [13 x i8*] }
%struct.anon = type { i8* }
%struct.locale_data = type { i8*, i8*, i32, i32, { void (%struct.locale_data*)*, %struct.anon }, i32, i32, i32, [0 x %struct.locale_data_value] }
%struct.locale_data_value = type { i32* }
@wcstoll_l = alias i64 (i32*, i32**, i32, %struct.__locale_struct*)* @__wcstoll_l
define i64 @____wcstoll_l_internal(i32* %nptr, i32** %endptr, i32 %base, i32 %group, %struct.__locale_struct* %loc) nounwind {
entry:
%tmp27 = load i32* null, align 4 ; <i32> [#uses=1]
%tmp83 = getelementptr i32* %nptr, i32 1 ; <i32*> [#uses=1]
%tmp233 = add i32 0, -48 ; <i32> [#uses=1]
br label %bb271.us
bb271.us: ; preds = %entry
br label %bb374.outer
bb311.split: ; preds = %bb305.us
%tmp313 = add i32 %tmp378.us, -48 ; <i32> [#uses=1]
br i1 false, label %bb374.outer, label %bb383
bb327.split: ; preds = %bb314.us
ret i64 0
bb374.outer: ; preds = %bb311.split, %bb271.us
%tmp370371552.pn.in = phi i32 [ %tmp233, %bb271.us ], [ %tmp313, %bb311.split ] ; <i32> [#uses=1]
%tmp278279.pn = phi i64 [ 0, %bb271.us ], [ %tmp373.reg2mem.0.ph, %bb311.split ] ; <i64> [#uses=1]
%s.5.ph = phi i32* [ null, %bb271.us ], [ %tmp376.us, %bb311.split ] ; <i32*> [#uses=1]
%tmp366367550.pn = sext i32 %base to i64 ; <i64> [#uses=1]
%tmp370371552.pn = zext i32 %tmp370371552.pn.in to i64 ; <i64> [#uses=1]
%tmp369551.pn = mul i64 %tmp278279.pn, %tmp366367550.pn ; <i64> [#uses=1]
%tmp373.reg2mem.0.ph = add i64 %tmp370371552.pn, %tmp369551.pn ; <i64> [#uses=1]
br label %bb374.us
bb374.us: ; preds = %bb314.us, %bb374.outer
%tmp376.us = getelementptr i32* %s.5.ph, i32 0 ; <i32*> [#uses=3]
%tmp378.us = load i32* %tmp376.us, align 4 ; <i32> [#uses=2]
%tmp302.us = icmp eq i32* %tmp376.us, %tmp83 ; <i1> [#uses=1]
%bothcond484.us = or i1 false, %tmp302.us ; <i1> [#uses=1]
br i1 %bothcond484.us, label %bb383, label %bb305.us
bb305.us: ; preds = %bb374.us
br i1 false, label %bb311.split, label %bb314.us
bb314.us: ; preds = %bb305.us
%tmp320.us = icmp eq i32 %tmp378.us, %tmp27 ; <i1> [#uses=1]
br i1 %tmp320.us, label %bb374.us, label %bb327.split
bb383: ; preds = %bb374.us, %bb311.split
ret i64 0
}
define i64 @__wcstoll_l(i32*, i32**, i32, %struct.__locale_struct*) nounwind {
ret i64 0
}