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annotate clang/test/CodeGen/arm64-be-hfa-vararg.c @ 207:2e18cbf3894f

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LLVM12
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Tue, 08 Jun 2021 06:07:14 +0900
parents 1d019706d866
children 5f17cb93ff66
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1 // RUN: %clang_cc1 -triple aarch64_be-linux-gnu -ffreestanding -emit-llvm -O0 -o - %s | FileCheck %s
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2
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3 #include <stdarg.h>
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4
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5 // A single member HFA must be aligned just like a non-HFA register argument.
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6 double callee(int a, ...) {
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7 // CHECK: [[REGPP:%.*]] = getelementptr inbounds %struct.__va_list, %struct.__va_list* [[VA:%.*]], i32 0, i32 2
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8 // CHECK: [[REGP:%.*]] = load i8*, i8** [[REGPP]], align 8
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9 // CHECK: [[OFFSET0:%.*]] = getelementptr inbounds i8, i8* [[REGP]], i32 {{.*}}
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10 // CHECK: [[OFFSET1:%.*]] = getelementptr inbounds i8, i8* [[OFFSET0]], i64 8
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11
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12 // CHECK: [[MEMPP:%.*]] = getelementptr inbounds %struct.__va_list, %struct.__va_list* [[VA:%.*]], i32 0, i32 0
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13 // CHECK: [[MEMP:%.*]] = load i8*, i8** [[MEMPP]], align 8
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14 // CHECK: [[NEXTP:%.*]] = getelementptr inbounds i8, i8* [[MEMP]], i64 8
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15 // CHECK: store i8* [[NEXTP]], i8** [[MEMPP]], align 8
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16 va_list vl;
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17 va_start(vl, a);
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18 double result = va_arg(vl, struct { double a; }).a;
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19 va_end(vl);
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20 return result;
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21 }