mirror of
https://github.com/RPCS3/llvm-mirror.git
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f59acc15ad
Summary: This is a resurrection of work first proposed and discussed in Aug 2015: http://lists.llvm.org/pipermail/llvm-dev/2015-August/089384.html and initially landed (but then backed out) in Nov 2015: http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20151109/312083.html The @llvm.memcpy/memmove/memset intrinsics currently have an explicit argument which is required to be a constant integer. It represents the alignment of the dest (and source), and so must be the minimum of the actual alignment of the two. This change is the first in a series that allows source and dest to each have their own alignments by using the alignment attribute on their arguments. In this change we: 1) Remove the alignment argument. 2) Add alignment attributes to the source & dest arguments. We, temporarily, require that the alignments for source & dest be equal. For example, code which used to read: call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %src, i32 100, i32 4, i1 false) will now read call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %dest, i8* align 4 %src, i32 100, i1 false) Downstream users may have to update their lit tests that check for @llvm.memcpy/memmove/memset call/declaration patterns. The following extended sed script may help with updating the majority of your tests, but it does not catch all possible patterns so some manual checking and updating will be required. s~declare void @llvm\.mem(set|cpy|move)\.p([^(]*)\((.*), i32, i1\)~declare void @llvm.mem\1.p\2(\3, i1)~g s~call void @llvm\.memset\.p([^(]*)i8\(i8([^*]*)\* (.*), i8 (.*), i8 (.*), i32 [01], i1 ([^)]*)\)~call void @llvm.memset.p\1i8(i8\2* \3, i8 \4, i8 \5, i1 \6)~g s~call void @llvm\.memset\.p([^(]*)i16\(i8([^*]*)\* (.*), i8 (.*), i16 (.*), i32 [01], i1 ([^)]*)\)~call void @llvm.memset.p\1i16(i8\2* \3, i8 \4, i16 \5, i1 \6)~g s~call void @llvm\.memset\.p([^(]*)i32\(i8([^*]*)\* (.*), i8 (.*), i32 (.*), i32 [01], i1 ([^)]*)\)~call void @llvm.memset.p\1i32(i8\2* \3, i8 \4, i32 \5, i1 \6)~g s~call void @llvm\.memset\.p([^(]*)i64\(i8([^*]*)\* (.*), i8 (.*), i64 (.*), i32 [01], i1 ([^)]*)\)~call void @llvm.memset.p\1i64(i8\2* \3, i8 \4, i64 \5, i1 \6)~g s~call void @llvm\.memset\.p([^(]*)i128\(i8([^*]*)\* (.*), i8 (.*), i128 (.*), i32 [01], i1 ([^)]*)\)~call void @llvm.memset.p\1i128(i8\2* \3, i8 \4, i128 \5, i1 \6)~g s~call void @llvm\.memset\.p([^(]*)i8\(i8([^*]*)\* (.*), i8 (.*), i8 (.*), i32 ([0-9]*), i1 ([^)]*)\)~call void @llvm.memset.p\1i8(i8\2* align \6 \3, i8 \4, i8 \5, i1 \7)~g s~call void @llvm\.memset\.p([^(]*)i16\(i8([^*]*)\* (.*), i8 (.*), i16 (.*), i32 ([0-9]*), i1 ([^)]*)\)~call void @llvm.memset.p\1i16(i8\2* align \6 \3, i8 \4, i16 \5, i1 \7)~g s~call void @llvm\.memset\.p([^(]*)i32\(i8([^*]*)\* (.*), i8 (.*), i32 (.*), i32 ([0-9]*), i1 ([^)]*)\)~call void @llvm.memset.p\1i32(i8\2* align \6 \3, i8 \4, i32 \5, i1 \7)~g s~call void @llvm\.memset\.p([^(]*)i64\(i8([^*]*)\* (.*), i8 (.*), i64 (.*), i32 ([0-9]*), i1 ([^)]*)\)~call void @llvm.memset.p\1i64(i8\2* align \6 \3, i8 \4, i64 \5, i1 \7)~g s~call void @llvm\.memset\.p([^(]*)i128\(i8([^*]*)\* (.*), i8 (.*), i128 (.*), i32 ([0-9]*), i1 ([^)]*)\)~call void @llvm.memset.p\1i128(i8\2* align \6 \3, i8 \4, i128 \5, i1 \7)~g s~call void @llvm\.mem(cpy|move)\.p([^(]*)i8\(i8([^*]*)\* (.*), i8([^*]*)\* (.*), i8 (.*), i32 [01], i1 ([^)]*)\)~call void @llvm.mem\1.p\2i8(i8\3* \4, i8\5* \6, i8 \7, i1 \8)~g s~call void @llvm\.mem(cpy|move)\.p([^(]*)i16\(i8([^*]*)\* (.*), i8([^*]*)\* (.*), i16 (.*), i32 [01], i1 ([^)]*)\)~call void @llvm.mem\1.p\2i16(i8\3* \4, i8\5* \6, i16 \7, i1 \8)~g s~call void @llvm\.mem(cpy|move)\.p([^(]*)i32\(i8([^*]*)\* (.*), i8([^*]*)\* (.*), i32 (.*), i32 [01], i1 ([^)]*)\)~call void @llvm.mem\1.p\2i32(i8\3* \4, i8\5* \6, i32 \7, i1 \8)~g s~call void @llvm\.mem(cpy|move)\.p([^(]*)i64\(i8([^*]*)\* (.*), i8([^*]*)\* (.*), i64 (.*), i32 [01], i1 ([^)]*)\)~call void @llvm.mem\1.p\2i64(i8\3* \4, i8\5* \6, i64 \7, i1 \8)~g s~call void @llvm\.mem(cpy|move)\.p([^(]*)i128\(i8([^*]*)\* (.*), i8([^*]*)\* (.*), i128 (.*), i32 [01], i1 ([^)]*)\)~call void @llvm.mem\1.p\2i128(i8\3* \4, i8\5* \6, i128 \7, i1 \8)~g s~call void @llvm\.mem(cpy|move)\.p([^(]*)i8\(i8([^*]*)\* (.*), i8([^*]*)\* (.*), i8 (.*), i32 ([0-9]*), i1 ([^)]*)\)~call void @llvm.mem\1.p\2i8(i8\3* align \8 \4, i8\5* align \8 \6, i8 \7, i1 \9)~g s~call void @llvm\.mem(cpy|move)\.p([^(]*)i16\(i8([^*]*)\* (.*), i8([^*]*)\* (.*), i16 (.*), i32 ([0-9]*), i1 ([^)]*)\)~call void @llvm.mem\1.p\2i16(i8\3* align \8 \4, i8\5* align \8 \6, i16 \7, i1 \9)~g s~call void @llvm\.mem(cpy|move)\.p([^(]*)i32\(i8([^*]*)\* (.*), i8([^*]*)\* (.*), i32 (.*), i32 ([0-9]*), i1 ([^)]*)\)~call void @llvm.mem\1.p\2i32(i8\3* align \8 \4, i8\5* align \8 \6, i32 \7, i1 \9)~g s~call void @llvm\.mem(cpy|move)\.p([^(]*)i64\(i8([^*]*)\* (.*), i8([^*]*)\* (.*), i64 (.*), i32 ([0-9]*), i1 ([^)]*)\)~call void @llvm.mem\1.p\2i64(i8\3* align \8 \4, i8\5* align \8 \6, i64 \7, i1 \9)~g s~call void @llvm\.mem(cpy|move)\.p([^(]*)i128\(i8([^*]*)\* (.*), i8([^*]*)\* (.*), i128 (.*), i32 ([0-9]*), i1 ([^)]*)\)~call void @llvm.mem\1.p\2i128(i8\3* align \8 \4, i8\5* align \8 \6, i128 \7, i1 \9)~g The remaining changes in the series will: Step 2) Expand the IRBuilder API to allow creation of memcpy/memmove with differing source and dest alignments. Step 3) Update Clang to use the new IRBuilder API. Step 4) Update Polly to use the new IRBuilder API. Step 5) Update LLVM passes that create memcpy/memmove calls to use the new IRBuilder API, and those that use use MemIntrinsicInst::[get|set]Alignment() to use getDestAlignment() and getSourceAlignment() instead. Step 6) Remove the single-alignment IRBuilder API for memcpy/memmove, and the MemIntrinsicInst::[get|set]Alignment() methods. Reviewers: pete, hfinkel, lhames, reames, bollu Reviewed By: reames Subscribers: niosHD, reames, jholewinski, qcolombet, jfb, sanjoy, arsenm, dschuff, dylanmckay, mehdi_amini, sdardis, nemanjai, david2050, nhaehnle, javed.absar, sbc100, jgravelle-google, eraman, aheejin, kbarton, JDevlieghere, asb, rbar, johnrusso, simoncook, jordy.potman.lists, apazos, sabuasal, llvm-commits Differential Revision: https://reviews.llvm.org/D41675 llvm-svn: 322965
140 lines
8.2 KiB
LLVM
140 lines
8.2 KiB
LLVM
; RUN: llc -verify-machineinstrs -mtriple=powerpc64-bgq-linux -mcpu=a2 < %s
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target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64"
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target triple = "powerpc64-bgq-linux"
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%"class.std::__1::__assoc_sub_state" = type { %"class.std::__1::__shared_count", %"class.std::__exception_ptr::exception_ptr", %"class.std::__1::mutex", %"class.std::__1::condition_variable", i32 }
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%"class.std::__1::__shared_count" = type { i32 (...)**, i64 }
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%"class.std::__exception_ptr::exception_ptr" = type { i8* }
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%"class.std::__1::mutex" = type { %union.pthread_mutex_t }
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%union.pthread_mutex_t = type { %"struct.<anonymous union>::__pthread_mutex_s" }
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%"struct.<anonymous union>::__pthread_mutex_s" = type { i32, i32, i32, i32, i32, i32, %struct.__pthread_internal_list }
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%struct.__pthread_internal_list = type { %struct.__pthread_internal_list*, %struct.__pthread_internal_list* }
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%"class.std::__1::condition_variable" = type { %union.pthread_cond_t }
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%union.pthread_cond_t = type { %struct.anon }
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%struct.anon = type { i32, i32, i64, i64, i64, i8*, i32, i32 }
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%"class.std::__1::unique_lock" = type { %"class.std::__1::mutex"*, i8 }
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declare i32 @__gxx_personality_v0(...)
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; Function Attrs: optsize
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define void @_ZNSt3__117__assoc_sub_state4copyEv(%"class.std::__1::__assoc_sub_state"* %this) #0 align 2 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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entry:
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%__lk = alloca %"class.std::__1::unique_lock", align 8
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%ref.tmp = alloca %"class.std::__exception_ptr::exception_ptr", align 8
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%tmp = alloca { i64, i64 }, align 8
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%agg.tmp = alloca %"class.std::__exception_ptr::exception_ptr", align 8
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%__mut_ = getelementptr inbounds %"class.std::__1::__assoc_sub_state", %"class.std::__1::__assoc_sub_state"* %this, i64 0, i32 2
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%__m_.i.i = getelementptr inbounds %"class.std::__1::unique_lock", %"class.std::__1::unique_lock"* %__lk, i64 0, i32 0
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store %"class.std::__1::mutex"* %__mut_, %"class.std::__1::mutex"** %__m_.i.i, align 8, !tbaa !5
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%__owns_.i.i = getelementptr inbounds %"class.std::__1::unique_lock", %"class.std::__1::unique_lock"* %__lk, i64 0, i32 1
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store i8 1, i8* %__owns_.i.i, align 8, !tbaa !6
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call void @_ZNSt3__15mutex4lockEv(%"class.std::__1::mutex"* %__mut_) #4
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invoke void @_ZNSt3__117__assoc_sub_state10__sub_waitERNS_11unique_lockINS_5mutexEEE(%"class.std::__1::__assoc_sub_state"* %this, %"class.std::__1::unique_lock"* %__lk) #4
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to label %invoke.cont unwind label %lpad
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invoke.cont: ; preds = %entry
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%__exception_ = getelementptr inbounds %"class.std::__1::__assoc_sub_state", %"class.std::__1::__assoc_sub_state"* %this, i64 0, i32 1
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%0 = bitcast { i64, i64 }* %tmp to i8*
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call void @llvm.memset.p0i8.i64(i8* align 8 %0, i8 0, i64 16, i1 false)
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call void @_ZNSt15__exception_ptr13exception_ptrC1EMS0_FvvE(%"class.std::__exception_ptr::exception_ptr"* %ref.tmp, { i64, i64 }* byval %tmp) #5
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%call = call zeroext i1 @_ZNSt15__exception_ptrneERKNS_13exception_ptrES2_(%"class.std::__exception_ptr::exception_ptr"* %__exception_, %"class.std::__exception_ptr::exception_ptr"* %ref.tmp) #5
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call void @_ZNSt15__exception_ptr13exception_ptrD1Ev(%"class.std::__exception_ptr::exception_ptr"* %ref.tmp) #5
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br i1 %call, label %if.then, label %if.end
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if.then: ; preds = %invoke.cont
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call void @_ZNSt15__exception_ptr13exception_ptrC1ERKS0_(%"class.std::__exception_ptr::exception_ptr"* %agg.tmp, %"class.std::__exception_ptr::exception_ptr"* %__exception_) #5
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invoke void @_ZSt17rethrow_exceptionNSt15__exception_ptr13exception_ptrE(%"class.std::__exception_ptr::exception_ptr"* %agg.tmp) #6
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to label %invoke.cont4 unwind label %lpad3
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invoke.cont4: ; preds = %if.then
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unreachable
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lpad: ; preds = %entry
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%1 = landingpad { i8*, i32 }
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cleanup
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%2 = extractvalue { i8*, i32 } %1, 0
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%3 = extractvalue { i8*, i32 } %1, 1
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br label %ehcleanup
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lpad3: ; preds = %if.then
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%4 = landingpad { i8*, i32 }
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cleanup
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%5 = extractvalue { i8*, i32 } %4, 0
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%6 = extractvalue { i8*, i32 } %4, 1
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call void @_ZNSt15__exception_ptr13exception_ptrD1Ev(%"class.std::__exception_ptr::exception_ptr"* %agg.tmp) #5
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br label %ehcleanup
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if.end: ; preds = %invoke.cont
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%7 = load i8, i8* %__owns_.i.i, align 8, !tbaa !6, !range !4
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%tobool.i.i = icmp eq i8 %7, 0
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br i1 %tobool.i.i, label %_ZNSt3__111unique_lockINS_5mutexEED1Ev.exit, label %if.then.i.i
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if.then.i.i: ; preds = %if.end
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%8 = load %"class.std::__1::mutex"*, %"class.std::__1::mutex"** %__m_.i.i, align 8, !tbaa !5
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call void @_ZNSt3__15mutex6unlockEv(%"class.std::__1::mutex"* %8) #5
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br label %_ZNSt3__111unique_lockINS_5mutexEED1Ev.exit
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_ZNSt3__111unique_lockINS_5mutexEED1Ev.exit: ; preds = %if.then.i.i, %if.end
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ret void
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ehcleanup: ; preds = %lpad3, %lpad
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%exn.slot.0 = phi i8* [ %5, %lpad3 ], [ %2, %lpad ]
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%ehselector.slot.0 = phi i32 [ %6, %lpad3 ], [ %3, %lpad ]
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%9 = load i8, i8* %__owns_.i.i, align 8, !tbaa !6, !range !4
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%tobool.i.i9 = icmp eq i8 %9, 0
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br i1 %tobool.i.i9, label %_ZNSt3__111unique_lockINS_5mutexEED1Ev.exit12, label %if.then.i.i11
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if.then.i.i11: ; preds = %ehcleanup
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%10 = load %"class.std::__1::mutex"*, %"class.std::__1::mutex"** %__m_.i.i, align 8, !tbaa !5
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call void @_ZNSt3__15mutex6unlockEv(%"class.std::__1::mutex"* %10) #5
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br label %_ZNSt3__111unique_lockINS_5mutexEED1Ev.exit12
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_ZNSt3__111unique_lockINS_5mutexEED1Ev.exit12: ; preds = %if.then.i.i11, %ehcleanup
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%lpad.val = insertvalue { i8*, i32 } undef, i8* %exn.slot.0, 0
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%lpad.val5 = insertvalue { i8*, i32 } %lpad.val, i32 %ehselector.slot.0, 1
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resume { i8*, i32 } %lpad.val5
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}
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; Function Attrs: optsize
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declare void @_ZNSt3__117__assoc_sub_state10__sub_waitERNS_11unique_lockINS_5mutexEEE(%"class.std::__1::__assoc_sub_state"*, %"class.std::__1::unique_lock"*) #0 align 2
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; Function Attrs: nounwind optsize
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declare zeroext i1 @_ZNSt15__exception_ptrneERKNS_13exception_ptrES2_(%"class.std::__exception_ptr::exception_ptr"*, %"class.std::__exception_ptr::exception_ptr"*) #1
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; Function Attrs: nounwind optsize
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declare void @_ZNSt15__exception_ptr13exception_ptrC1EMS0_FvvE(%"class.std::__exception_ptr::exception_ptr"*, { i64, i64 }* byval) #1
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; Function Attrs: nounwind optsize
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declare void @_ZNSt15__exception_ptr13exception_ptrD1Ev(%"class.std::__exception_ptr::exception_ptr"*) #1
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; Function Attrs: noreturn optsize
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declare void @_ZSt17rethrow_exceptionNSt15__exception_ptr13exception_ptrE(%"class.std::__exception_ptr::exception_ptr"*) #2
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; Function Attrs: nounwind optsize
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declare void @_ZNSt15__exception_ptr13exception_ptrC1ERKS0_(%"class.std::__exception_ptr::exception_ptr"*, %"class.std::__exception_ptr::exception_ptr"*) #1
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; Function Attrs: nounwind optsize
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declare void @_ZNSt3__15mutex6unlockEv(%"class.std::__1::mutex"*) #1
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; Function Attrs: optsize
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declare void @_ZNSt3__15mutex4lockEv(%"class.std::__1::mutex"*) #0
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; Function Attrs: nounwind
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declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i1) #3
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attributes #0 = { optsize "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { nounwind optsize "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #2 = { noreturn optsize "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #3 = { nounwind }
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attributes #4 = { optsize }
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attributes #5 = { nounwind optsize }
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attributes #6 = { noreturn optsize }
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!0 = !{!"any pointer", !1}
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!1 = !{!"omnipotent char", !2}
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!2 = !{!"Simple C/C++ TBAA"}
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!3 = !{!"bool", !1}
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!4 = !{i8 0, i8 2}
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!5 = !{!0, !0, i64 0}
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!6 = !{!3, !3, i64 0}
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