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annotate test/CodeGen/X86/libcall-sret.ll @ 100:7d135dc70f03 LLVM 3.9

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LLVM 3.9
author Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
date Tue, 26 Jan 2016 22:53:40 +0900
parents 54457678186b
children 1172e4bd9c6f
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54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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1 ; RUN: llc -mtriple=i686-linux-gnu -o - %s | FileCheck %s
54457678186b LLVM 3.6
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2
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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3 @var = global i128 0
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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4
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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5 ; We were trying to convert the i128 operation into a libcall, but failing to
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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6 ; perform sret demotion when we couldn't return the result in registers. Make
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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7 ; sure we marshal the return properly:
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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8
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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9 define void @test_sret_libcall(i128 %l, i128 %r) {
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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10 ; CHECK-LABEL: test_sret_libcall:
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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11
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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12 ; Stack for call: 4(sret ptr), 16(i128 %l), 16(128 %r). So next logical
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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13 ; (aligned) place for the actual sret data is %esp + 40.
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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14 ; CHECK: leal 40(%esp), [[SRET_ADDR:%[a-z]+]]
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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15 ; CHECK: movl [[SRET_ADDR]], (%esp)
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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16 ; CHECK: calll __multi3
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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17 ; CHECK-DAG: movl 40(%esp), [[RES0:%[a-z]+]]
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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18 ; CHECK-DAG: movl 44(%esp), [[RES1:%[a-z]+]]
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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19 ; CHECK-DAG: movl 48(%esp), [[RES2:%[a-z]+]]
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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20 ; CHECK-DAG: movl 52(%esp), [[RES3:%[a-z]+]]
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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21 ; CHECK-DAG: movl [[RES0]], var
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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22 ; CHECK-DAG: movl [[RES1]], var+4
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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23 ; CHECK-DAG: movl [[RES2]], var+8
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24 ; CHECK-DAG: movl [[RES3]], var+12
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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25 %prod = mul i128 %l, %r
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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26 store i128 %prod, i128* @var
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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27 ret void
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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28 }