29 lines
1.0 KiB
LLVM
29 lines
1.0 KiB
LLVM
; RUN: llc -stack-symbol-ordering=0 < %s -mtriple=x86_64-linux | FileCheck %s
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%struct.__va_list_tag = type { i32, i32, i8*, i8* }
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define void @foo(i32 %x, ...) nounwind {
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entry:
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%ap = alloca [1 x %struct.__va_list_tag], align 8; <[1 x %struct.__va_list_tag]*> [#uses=2]
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%ap12 = bitcast [1 x %struct.__va_list_tag]* %ap to i8*; <i8*> [#uses=2]
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call void @llvm.va_start(i8* %ap12)
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; CHECK: testb %al, %al
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; These test for specific offsets, which is very fragile. Still, the test needs
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; to ensure that va_list has the correct element types.
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;
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; CHECK-DAG: movq {{.*}}, 192(%rsp)
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; CHECK-DAG: movq {{.*}}, 184(%rsp)
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; CHECK-DAG: movq {{.*}}, 176(%rsp)
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%ap3 = getelementptr inbounds [1 x %struct.__va_list_tag], [1 x %struct.__va_list_tag]* %ap, i64 0, i64 0; <%struct.__va_list_tag*> [#uses=1]
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call void @bar(%struct.__va_list_tag* %ap3) nounwind
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call void @llvm.va_end(i8* %ap12)
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ret void
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}
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declare void @llvm.va_start(i8*) nounwind
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declare void @bar(%struct.__va_list_tag*)
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declare void @llvm.va_end(i8*) nounwind
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