Mercurial > hg > CbC > CbC_llvm

annotate test/CodeGen/Thumb2/thumb2-ldm.ll @ 146:3fc4d5c3e21e

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set tail call flag for code segment in CGCAll
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Sun, 23 Dec 2018 19:23:36 +0900
parents 1172e4bd9c6f
children
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1 ; RUN: llc < %s -mtriple=thumbv7-apple-ios -mattr=+thumb2 | FileCheck %s -check-prefix=ALL -check-prefix=CHECK
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2 ; RUN: llc < %s -mtriple=thumbv7-apple-ios -mattr=+thumb2 -arm-assume-misaligned-load-store | FileCheck %s -check-prefix=ALL -check-prefix=CONSERVATIVE
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4 @X = external global [0 x i32] ; <[0 x i32]*> [#uses=5]
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6 define i32 @t1() "no-frame-pointer-elim"="true" {
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7 ; ALL-LABEL: t1:
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8 ; ALL: push {r7, lr}
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9 ; CHECK: ldrd
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10 ; CONSERVATIVE-NOT: ldrd
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11 ; CONSERVATIVE-NOT: ldm
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12 ; ALL: pop {r7, pc}
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13 %tmp = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 0) ; <i32> [#uses=1]
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14 %tmp3 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 1) ; <i32> [#uses=1]
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15 %tmp4 = call i32 @f1( i32 %tmp, i32 %tmp3 ) ; <i32> [#uses=1]
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16 ret i32 %tmp4
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17 }
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19 define i32 @t2() "no-frame-pointer-elim"="true" {
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20 ; ALL-LABEL: t2:
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21 ; ALL: push {r7, lr}
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22 ; CHECK: ldm
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23 ; CONSERVATIVE-NOT: ldrd
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24 ; CONSERVATIVE-NOT: ldm
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25 ; ALL: pop {r7, pc}
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26 %tmp = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 2) ; <i32> [#uses=1]
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27 %tmp3 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 3) ; <i32> [#uses=1]
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28 %tmp5 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 4) ; <i32> [#uses=1]
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29 %tmp6 = call i32 @f2( i32 %tmp, i32 %tmp3, i32 %tmp5 ) ; <i32> [#uses=1]
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30 ret i32 %tmp6
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31 }
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33 define i32 @t3() "no-frame-pointer-elim"="true" {
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34 ; ALL-LABEL: t3:
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35 ; ALL: push {r7, lr}
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36 ; CHECK: ldm
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37 ; CONSERVATIVE-NOT: ldrd
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38 ; CONSERVATIVE-NOT: ldm
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39 ; ALL: pop {r7, pc}
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40 %tmp = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 1) ; <i32> [#uses=1]
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41 %tmp3 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 2) ; <i32> [#uses=1]
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42 %tmp5 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 3) ; <i32> [#uses=1]
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43 %tmp6 = call i32 @f2( i32 %tmp, i32 %tmp3, i32 %tmp5 ) ; <i32> [#uses=1]
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44 ret i32 %tmp6
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45 }
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47 @g = common global i32* null
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48
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49 define void @t4(i32 %a0, i32 %a1, i32 %a2) "no-frame-pointer-elim"="true" {
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50 ; ALL-LABEL: t4:
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51 ; ALL: stm.w sp, {r0, r1, r2}
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52 ; ALL: bl _ext
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53 ; ALL: ldm.w sp, {r0, r1, r2}
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54 ; ALL: bl _f2
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55 %arr = alloca [4 x i32], align 4
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56 %p0 = getelementptr inbounds [4 x i32], [4 x i32]* %arr, i64 0, i64 0
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57 %p1 = getelementptr inbounds [4 x i32], [4 x i32]* %arr, i64 0, i64 1
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58 %p2 = getelementptr inbounds [4 x i32], [4 x i32]* %arr, i64 0, i64 2
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59 store i32* %p0, i32** @g, align 8
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60
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61 store i32 %a0, i32* %p0, align 4
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62 store i32 %a1, i32* %p1, align 4
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63 store i32 %a2, i32* %p2, align 4
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64 call void @ext()
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65
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66 %v0 = load i32, i32* %p0, align 4
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67 %v1 = load i32, i32* %p1, align 4
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68 %v2 = load i32, i32* %p2, align 4
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69 call i32 @f2(i32 %v0, i32 %v1, i32 %v2)
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70 ret void
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71 }
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73 declare i32 @f1(i32, i32)
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75 declare i32 @f2(i32, i32, i32)
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77 declare void @ext()