22 lines
979 B
C
22 lines
979 B
C
// RUN: %clang_cc1 -triple aarch64_be-linux-gnu -ffreestanding -emit-llvm -O0 -o - %s | FileCheck %s
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#include <stdarg.h>
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// A single member HFA must be aligned just like a non-HFA register argument.
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double callee(int a, ...) {
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// CHECK: [[REGPP:%.*]] = getelementptr inbounds %struct.__va_list, %struct.__va_list* [[VA:%.*]], i32 0, i32 2
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// CHECK: [[REGP:%.*]] = load i8*, i8** [[REGPP]], align 8
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// CHECK: [[OFFSET0:%.*]] = getelementptr inbounds i8, i8* [[REGP]], i32 {{.*}}
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// CHECK: [[OFFSET1:%.*]] = getelementptr inbounds i8, i8* [[OFFSET0]], i64 8
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// CHECK: [[MEMPP:%.*]] = getelementptr inbounds %struct.__va_list, %struct.__va_list* [[VA:%.*]], i32 0, i32 0
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// CHECK: [[MEMP:%.*]] = load i8*, i8** [[MEMPP]], align 8
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// CHECK: [[NEXTP:%.*]] = getelementptr inbounds i8, i8* [[MEMP]], i64 8
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// CHECK: store i8* [[NEXTP]], i8** [[MEMPP]], align 8
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va_list vl;
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va_start(vl, a);
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double result = va_arg(vl, struct { double a; }).a;
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va_end(vl);
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return result;
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}
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