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llvm-project/llvm/test/Transforms/GVN/non-integral-pointers.ll

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Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -gvn -S < %s | FileCheck %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128-ni:4"
target triple = "x86_64-unknown-linux-gnu"
define void @f0(i1 %alwaysFalse, i64 %val, i64* %loc) {
; CHECK-LABEL: @f0(
; CHECK-NEXT: entry:
StoreInst should store Align, not MaybeAlign This is D77454, except for stores. All the infrastructure work was done for loads, so the remaining changes necessary are relatively small. Differential Revision: https://reviews.llvm.org/D79968
2020-05-15 05:48:10 +08:00
; CHECK-NEXT: store i64 [[VAL:%.*]], i64* [[LOC:%.*]], align 8
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
; CHECK-NEXT: br i1 [[ALWAYSFALSE:%.*]], label [[NEVERTAKEN:%.*]], label [[ALWAYSTAKEN:%.*]]
; CHECK: neverTaken:
; CHECK-NEXT: [[LOC_BC:%.*]] = bitcast i64* [[LOC]] to i8 addrspace(4)**
StoreInst should store Align, not MaybeAlign This is D77454, except for stores. All the infrastructure work was done for loads, so the remaining changes necessary are relatively small. Differential Revision: https://reviews.llvm.org/D79968
2020-05-15 05:48:10 +08:00
; CHECK-NEXT: [[PTR:%.*]] = load i8 addrspace(4)*, i8 addrspace(4)** [[LOC_BC]], align 8
; CHECK-NEXT: store i8 5, i8 addrspace(4)* [[PTR]], align 1
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
; CHECK-NEXT: ret void
; CHECK: alwaysTaken:
; CHECK-NEXT: ret void
;
entry:
store i64 %val, i64* %loc
br i1 %alwaysFalse, label %neverTaken, label %alwaysTaken
neverTaken:
%loc.bc = bitcast i64* %loc to i8 addrspace(4)**
%ptr = load i8 addrspace(4)*, i8 addrspace(4)** %loc.bc
store i8 5, i8 addrspace(4)* %ptr
ret void
alwaysTaken:
ret void
}
define i64 @f1(i1 %alwaysFalse, i8 addrspace(4)* %val, i8 addrspace(4)** %loc) {
; CHECK-LABEL: @f1(
; CHECK-NEXT: entry:
StoreInst should store Align, not MaybeAlign This is D77454, except for stores. All the infrastructure work was done for loads, so the remaining changes necessary are relatively small. Differential Revision: https://reviews.llvm.org/D79968
2020-05-15 05:48:10 +08:00
; CHECK-NEXT: store i8 addrspace(4)* [[VAL:%.*]], i8 addrspace(4)** [[LOC:%.*]], align 8
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
; CHECK-NEXT: br i1 [[ALWAYSFALSE:%.*]], label [[NEVERTAKEN:%.*]], label [[ALWAYSTAKEN:%.*]]
; CHECK: neverTaken:
; CHECK-NEXT: [[LOC_BC:%.*]] = bitcast i8 addrspace(4)** [[LOC]] to i64*
StoreInst should store Align, not MaybeAlign This is D77454, except for stores. All the infrastructure work was done for loads, so the remaining changes necessary are relatively small. Differential Revision: https://reviews.llvm.org/D79968
2020-05-15 05:48:10 +08:00
; CHECK-NEXT: [[INT:%.*]] = load i64, i64* [[LOC_BC]], align 8
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
; CHECK-NEXT: ret i64 [[INT]]
; CHECK: alwaysTaken:
; CHECK-NEXT: ret i64 42
;
entry:
store i8 addrspace(4)* %val, i8 addrspace(4)** %loc
br i1 %alwaysFalse, label %neverTaken, label %alwaysTaken
neverTaken:
%loc.bc = bitcast i8 addrspace(4)** %loc to i64*
%int = load i64, i64* %loc.bc
ret i64 %int
alwaysTaken:
ret i64 42
}
;; Note: For terseness, we stop using the %alwaysfalse trick for the
;; tests below and just exercise the bits of forwarding logic directly.
declare void @llvm.memset.p4i8.i64(i8 addrspace(4)* nocapture, i8, i64, i1) nounwind
; Can't forward as the load might be dead. (Pretend we wrote out the alwaysfalse idiom above.)
define i8 addrspace(4)* @neg_forward_memset(i8 addrspace(4)* addrspace(4)* %loc) {
; CHECK-LABEL: @neg_forward_memset(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[LOC_BC:%.*]] = bitcast i8 addrspace(4)* addrspace(4)* [[LOC:%.*]] to i8 addrspace(4)*
; CHECK-NEXT: call void @llvm.memset.p4i8.i64(i8 addrspace(4)* align 4 [[LOC_BC]], i8 7, i64 8, i1 false)
StoreInst should store Align, not MaybeAlign This is D77454, except for stores. All the infrastructure work was done for loads, so the remaining changes necessary are relatively small. Differential Revision: https://reviews.llvm.org/D79968
2020-05-15 05:48:10 +08:00
; CHECK-NEXT: [[REF:%.*]] = load i8 addrspace(4)*, i8 addrspace(4)* addrspace(4)* [[LOC]], align 8
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
; CHECK-NEXT: ret i8 addrspace(4)* [[REF]]
;
entry:
%loc.bc = bitcast i8 addrspace(4)* addrspace(4)* %loc to i8 addrspace(4)*
call void @llvm.memset.p4i8.i64(i8 addrspace(4)* align 4 %loc.bc, i8 7, i64 8, i1 false)
%ref = load i8 addrspace(4)*, i8 addrspace(4)* addrspace(4)* %loc
ret i8 addrspace(4)* %ref
}
define <1 x i8 addrspace(4)*> @neg_forward_memset_vload(<1 x i8 addrspace(4)*> addrspace(4)* %loc) {
; CHECK-LABEL: @neg_forward_memset_vload(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[LOC_BC:%.*]] = bitcast <1 x i8 addrspace(4)*> addrspace(4)* [[LOC:%.*]] to i8 addrspace(4)*
; CHECK-NEXT: call void @llvm.memset.p4i8.i64(i8 addrspace(4)* align 4 [[LOC_BC]], i8 7, i64 8, i1 false)
StoreInst should store Align, not MaybeAlign This is D77454, except for stores. All the infrastructure work was done for loads, so the remaining changes necessary are relatively small. Differential Revision: https://reviews.llvm.org/D79968
2020-05-15 05:48:10 +08:00
; CHECK-NEXT: [[REF:%.*]] = load <1 x i8 addrspace(4)*>, <1 x i8 addrspace(4)*> addrspace(4)* [[LOC]], align 8
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
; CHECK-NEXT: ret <1 x i8 addrspace(4)*> [[REF]]
;
entry:
%loc.bc = bitcast <1 x i8 addrspace(4)*> addrspace(4)* %loc to i8 addrspace(4)*
call void @llvm.memset.p4i8.i64(i8 addrspace(4)* align 4 %loc.bc, i8 7, i64 8, i1 false)
%ref = load <1 x i8 addrspace(4)*>, <1 x i8 addrspace(4)*> addrspace(4)* %loc
ret <1 x i8 addrspace(4)*> %ref
}
; Can forward since we can do so w/o breaking types
define i8 addrspace(4)* @forward_memset_zero(i8 addrspace(4)* addrspace(4)* %loc) {
; CHECK-LABEL: @forward_memset_zero(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[LOC_BC:%.*]] = bitcast i8 addrspace(4)* addrspace(4)* [[LOC:%.*]] to i8 addrspace(4)*
; CHECK-NEXT: call void @llvm.memset.p4i8.i64(i8 addrspace(4)* align 4 [[LOC_BC]], i8 0, i64 8, i1 false)
; CHECK-NEXT: ret i8 addrspace(4)* null
;
entry:
%loc.bc = bitcast i8 addrspace(4)* addrspace(4)* %loc to i8 addrspace(4)*
call void @llvm.memset.p4i8.i64(i8 addrspace(4)* align 4 %loc.bc, i8 0, i64 8, i1 false)
%ref = load i8 addrspace(4)*, i8 addrspace(4)* addrspace(4)* %loc
ret i8 addrspace(4)* %ref
}
; Can't forward as the load might be dead. (Pretend we wrote out the alwaysfalse idiom above.)
define i8 addrspace(4)* @neg_forward_store(i8 addrspace(4)* addrspace(4)* %loc) {
; CHECK-LABEL: @neg_forward_store(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[LOC_BC:%.*]] = bitcast i8 addrspace(4)* addrspace(4)* [[LOC:%.*]] to i64 addrspace(4)*
StoreInst should store Align, not MaybeAlign This is D77454, except for stores. All the infrastructure work was done for loads, so the remaining changes necessary are relatively small. Differential Revision: https://reviews.llvm.org/D79968
2020-05-15 05:48:10 +08:00
; CHECK-NEXT: store i64 5, i64 addrspace(4)* [[LOC_BC]], align 8
; CHECK-NEXT: [[REF:%.*]] = load i8 addrspace(4)*, i8 addrspace(4)* addrspace(4)* [[LOC]], align 8
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
; CHECK-NEXT: ret i8 addrspace(4)* [[REF]]
;
entry:
%loc.bc = bitcast i8 addrspace(4)* addrspace(4)* %loc to i64 addrspace(4)*
store i64 5, i64 addrspace(4)* %loc.bc
%ref = load i8 addrspace(4)*, i8 addrspace(4)* addrspace(4)* %loc
ret i8 addrspace(4)* %ref
}
define <1 x i8 addrspace(4)*> @neg_forward_store_vload(<1 x i8 addrspace(4)*> addrspace(4)* %loc) {
; CHECK-LABEL: @neg_forward_store_vload(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[LOC_BC:%.*]] = bitcast <1 x i8 addrspace(4)*> addrspace(4)* [[LOC:%.*]] to i64 addrspace(4)*
StoreInst should store Align, not MaybeAlign This is D77454, except for stores. All the infrastructure work was done for loads, so the remaining changes necessary are relatively small. Differential Revision: https://reviews.llvm.org/D79968
2020-05-15 05:48:10 +08:00
; CHECK-NEXT: store i64 5, i64 addrspace(4)* [[LOC_BC]], align 8
; CHECK-NEXT: [[REF:%.*]] = load <1 x i8 addrspace(4)*>, <1 x i8 addrspace(4)*> addrspace(4)* [[LOC]], align 8
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
; CHECK-NEXT: ret <1 x i8 addrspace(4)*> [[REF]]
;
entry:
%loc.bc = bitcast <1 x i8 addrspace(4)*> addrspace(4)* %loc to i64 addrspace(4)*
store i64 5, i64 addrspace(4)* %loc.bc
%ref = load <1 x i8 addrspace(4)*>, <1 x i8 addrspace(4)*> addrspace(4)* %loc
ret <1 x i8 addrspace(4)*> %ref
}
; Nulls have known bit patterns, so we can forward
define i8 addrspace(4)* @forward_store_zero(i8 addrspace(4)* addrspace(4)* %loc) {
; CHECK-LABEL: @forward_store_zero(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[LOC_BC:%.*]] = bitcast i8 addrspace(4)* addrspace(4)* [[LOC:%.*]] to i64 addrspace(4)*
StoreInst should store Align, not MaybeAlign This is D77454, except for stores. All the infrastructure work was done for loads, so the remaining changes necessary are relatively small. Differential Revision: https://reviews.llvm.org/D79968
2020-05-15 05:48:10 +08:00
; CHECK-NEXT: store i64 0, i64 addrspace(4)* [[LOC_BC]], align 8
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
; CHECK-NEXT: ret i8 addrspace(4)* null
;
entry:
%loc.bc = bitcast i8 addrspace(4)* addrspace(4)* %loc to i64 addrspace(4)*
store i64 0, i64 addrspace(4)* %loc.bc
%ref = load i8 addrspace(4)*, i8 addrspace(4)* addrspace(4)* %loc
ret i8 addrspace(4)* %ref
}
; Nulls have known bit patterns, so we can forward
define i8 addrspace(4)* @forward_store_zero2(i8 addrspace(4)* addrspace(4)* %loc) {
; CHECK-LABEL: @forward_store_zero2(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[LOC_BC:%.*]] = bitcast i8 addrspace(4)* addrspace(4)* [[LOC:%.*]] to <2 x i32> addrspace(4)*
StoreInst should store Align, not MaybeAlign This is D77454, except for stores. All the infrastructure work was done for loads, so the remaining changes necessary are relatively small. Differential Revision: https://reviews.llvm.org/D79968
2020-05-15 05:48:10 +08:00
; CHECK-NEXT: store <2 x i32> zeroinitializer, <2 x i32> addrspace(4)* [[LOC_BC]], align 8
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
; CHECK-NEXT: ret i8 addrspace(4)* null
;
entry:
%loc.bc = bitcast i8 addrspace(4)* addrspace(4)* %loc to <2 x i32> addrspace(4)*
store <2 x i32> zeroinitializer, <2 x i32> addrspace(4)* %loc.bc
%ref = load i8 addrspace(4)*, i8 addrspace(4)* addrspace(4)* %loc
ret i8 addrspace(4)* %ref
}
[GVN] add early exit to ConstantFoldLoadThroughBitcast [NFC] And adds some additional test coverage to ensure later commits don't introduce regressions. Differential Revision: https://reviews.llvm.org/D59730
2019-11-07 00:47:40 +08:00
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
@NonZeroConstant = constant <4 x i64> <i64 3, i64 3, i64 3, i64 3>
[GVN] add early exit to ConstantFoldLoadThroughBitcast [NFC] And adds some additional test coverage to ensure later commits don't introduce regressions. Differential Revision: https://reviews.llvm.org/D59730
2019-11-07 00:47:40 +08:00
@NonZeroConstant2 = constant <4 x i64 addrspace(4)*> <
i64 addrspace(4)* getelementptr (i64, i64 addrspace(4)* null, i32 3),
i64 addrspace(4)* getelementptr (i64, i64 addrspace(4)* null, i32 3),
i64 addrspace(4)* getelementptr (i64, i64 addrspace(4)* null, i32 3),
i64 addrspace(4)* getelementptr (i64, i64 addrspace(4)* null, i32 3)>
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
@ZeroConstant = constant <4 x i64> zeroinitializer
; Can't forward as the load might be dead. (Pretend we wrote out the alwaysfalse idiom above.)
define i8 addrspace(4)* @neg_forward_memcopy(i8 addrspace(4)* addrspace(4)* %loc) {
; CHECK-LABEL: @neg_forward_memcopy(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[LOC_BC:%.*]] = bitcast i8 addrspace(4)* addrspace(4)* [[LOC:%.*]] to i8 addrspace(4)*
; CHECK-NEXT: call void @llvm.memcpy.p4i8.p0i8.i64(i8 addrspace(4)* align 4 [[LOC_BC]], i8* bitcast (<4 x i64>* @NonZeroConstant to i8*), i64 8, i1 false)
StoreInst should store Align, not MaybeAlign This is D77454, except for stores. All the infrastructure work was done for loads, so the remaining changes necessary are relatively small. Differential Revision: https://reviews.llvm.org/D79968
2020-05-15 05:48:10 +08:00
; CHECK-NEXT: [[REF:%.*]] = load i8 addrspace(4)*, i8 addrspace(4)* addrspace(4)* [[LOC]], align 8
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
; CHECK-NEXT: ret i8 addrspace(4)* [[REF]]
;
entry:
%loc.bc = bitcast i8 addrspace(4)* addrspace(4)* %loc to i8 addrspace(4)*
%src.bc = bitcast <4 x i64>* @NonZeroConstant to i8*
call void @llvm.memcpy.p4i8.p0i8.i64(i8 addrspace(4)* align 4 %loc.bc, i8* %src.bc, i64 8, i1 false)
%ref = load i8 addrspace(4)*, i8 addrspace(4)* addrspace(4)* %loc
ret i8 addrspace(4)* %ref
}
[GVN] add early exit to ConstantFoldLoadThroughBitcast [NFC] And adds some additional test coverage to ensure later commits don't introduce regressions. Differential Revision: https://reviews.llvm.org/D59730
2019-11-07 00:47:40 +08:00
define i64 addrspace(4)* @neg_forward_memcopy2(i64 addrspace(4)* addrspace(4)* %loc) {
; CHECK-LABEL: @neg_forward_memcopy2(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[LOC_BC:%.*]] = bitcast i64 addrspace(4)* addrspace(4)* [[LOC:%.*]] to i8 addrspace(4)*
; CHECK-NEXT: call void @llvm.memcpy.p4i8.p0i8.i64(i8 addrspace(4)* align 4 [[LOC_BC]], i8* bitcast (<4 x i64>* @NonZeroConstant to i8*), i64 8, i1 false)
[gvn] Handle a corner case w/vectors of non-integral pointers If we try to coerce a vector of non-integral pointers to a narrower type (either narrower vector or single pointer), we use inttoptr and violate the semantics of non-integral pointers. In theory, we can handle many of these cases, we just need to use a different code idiom to convert without going through inttoptr and back. This shows up as wrong code bugs, and in some cases, crashes due to failed asserts. Modeled after a change which has lived downstream for a couple years, though completely rewritten to be more idiomatic.
2020-10-02 10:17:21 +08:00
; CHECK-NEXT: [[REF:%.*]] = load i64 addrspace(4)*, i64 addrspace(4)* addrspace(4)* [[LOC]], align 8
[GVN] add early exit to ConstantFoldLoadThroughBitcast [NFC] And adds some additional test coverage to ensure later commits don't introduce regressions. Differential Revision: https://reviews.llvm.org/D59730
2019-11-07 00:47:40 +08:00
; CHECK-NEXT: ret i64 addrspace(4)* [[REF]]
;
entry:
%loc.bc = bitcast i64 addrspace(4)* addrspace(4)* %loc to i8 addrspace(4)*
%src.bc = bitcast <4 x i64>* @NonZeroConstant to i8*
call void @llvm.memcpy.p4i8.p0i8.i64(i8 addrspace(4)* align 4 %loc.bc, i8* %src.bc, i64 8, i1 false)
%ref = load i64 addrspace(4)*, i64 addrspace(4)* addrspace(4)* %loc
ret i64 addrspace(4)* %ref
}
; TODO: missed optimization
define i8 addrspace(4)* @forward_memcopy(i8 addrspace(4)* addrspace(4)* %loc) {
; CHECK-LABEL: @forward_memcopy(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[LOC_BC:%.*]] = bitcast i8 addrspace(4)* addrspace(4)* [[LOC:%.*]] to i8 addrspace(4)*
; CHECK-NEXT: call void @llvm.memcpy.p4i8.p0i8.i64(i8 addrspace(4)* align 4 [[LOC_BC]], i8* bitcast (<4 x i64 addrspace(4)*>* @NonZeroConstant2 to i8*), i64 8, i1 false)
[gvn] Handle a corner case w/vectors of non-integral pointers If we try to coerce a vector of non-integral pointers to a narrower type (either narrower vector or single pointer), we use inttoptr and violate the semantics of non-integral pointers. In theory, we can handle many of these cases, we just need to use a different code idiom to convert without going through inttoptr and back. This shows up as wrong code bugs, and in some cases, crashes due to failed asserts. Modeled after a change which has lived downstream for a couple years, though completely rewritten to be more idiomatic.
2020-10-02 10:17:21 +08:00
; CHECK-NEXT: [[REF:%.*]] = load i8 addrspace(4)*, i8 addrspace(4)* addrspace(4)* [[LOC]], align 8
[GVN] add early exit to ConstantFoldLoadThroughBitcast [NFC] And adds some additional test coverage to ensure later commits don't introduce regressions. Differential Revision: https://reviews.llvm.org/D59730
2019-11-07 00:47:40 +08:00
; CHECK-NEXT: ret i8 addrspace(4)* [[REF]]
;
entry:
%loc.bc = bitcast i8 addrspace(4)* addrspace(4)* %loc to i8 addrspace(4)*
%src.bc = bitcast <4 x i64 addrspace(4)*>* @NonZeroConstant2 to i8*
call void @llvm.memcpy.p4i8.p0i8.i64(i8 addrspace(4)* align 4 %loc.bc, i8* %src.bc, i64 8, i1 false)
%ref = load i8 addrspace(4)*, i8 addrspace(4)* addrspace(4)* %loc
ret i8 addrspace(4)* %ref
}
[GVN] teach ConstantFolding correct handling of non-integral addrspace casts Here we teach the ConstantFolding analysis pass that it is not legal to replace a load of a bitcast constant (having a non-integral addrspace) with a bitcast of the value of that constant (with a different non-integral addrspace). But also teach it that certain bit patterns are always known and convertable (a fact it already uses elsewhere). This required us to also fix a globalopt test, since, after this change, LLVM is able to realize that the test actually is a valid transform (NULL is always a known bit-pattern) and so it doesn't need to emit the failure remarks for it. Also simplify some of the negative tests for transforms by avoiding a type change in their bitcast, and add positive versions of the same tests, to show that they otherwise should work. Differential Revision: https://reviews.llvm.org/D59730
2019-11-07 01:01:57 +08:00
define i64 addrspace(4)* @forward_memcopy2(i64 addrspace(4)* addrspace(4)* %loc) {
; CHECK-LABEL: @forward_memcopy2(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[LOC_BC:%.*]] = bitcast i64 addrspace(4)* addrspace(4)* [[LOC:%.*]] to i8 addrspace(4)*
; CHECK-NEXT: call void @llvm.memcpy.p4i8.p0i8.i64(i8 addrspace(4)* align 4 [[LOC_BC]], i8* bitcast (<4 x i64 addrspace(4)*>* @NonZeroConstant2 to i8*), i64 8, i1 false)
; CHECK-NEXT: ret i64 addrspace(4)* getelementptr (i64, i64 addrspace(4)* null, i32 3)
;
entry:
%loc.bc = bitcast i64 addrspace(4)* addrspace(4)* %loc to i8 addrspace(4)*
%src.bc = bitcast <4 x i64 addrspace(4)*>* @NonZeroConstant2 to i8*
call void @llvm.memcpy.p4i8.p0i8.i64(i8 addrspace(4)* align 4 %loc.bc, i8* %src.bc, i64 8, i1 false)
%ref = load i64 addrspace(4)*, i64 addrspace(4)* addrspace(4)* %loc
ret i64 addrspace(4)* %ref
}
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
define <1 x i8 addrspace(4)*> @neg_forward_memcpy_vload(<1 x i8 addrspace(4)*> addrspace(4)* %loc) {
; CHECK-LABEL: @neg_forward_memcpy_vload(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[LOC_BC:%.*]] = bitcast <1 x i8 addrspace(4)*> addrspace(4)* [[LOC:%.*]] to i8 addrspace(4)*
; CHECK-NEXT: call void @llvm.memcpy.p4i8.p0i8.i64(i8 addrspace(4)* align 4 [[LOC_BC]], i8* bitcast (<4 x i64>* @NonZeroConstant to i8*), i64 8, i1 false)
StoreInst should store Align, not MaybeAlign This is D77454, except for stores. All the infrastructure work was done for loads, so the remaining changes necessary are relatively small. Differential Revision: https://reviews.llvm.org/D79968
2020-05-15 05:48:10 +08:00
; CHECK-NEXT: [[REF:%.*]] = load <1 x i8 addrspace(4)*>, <1 x i8 addrspace(4)*> addrspace(4)* [[LOC]], align 8
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
; CHECK-NEXT: ret <1 x i8 addrspace(4)*> [[REF]]
;
entry:
%loc.bc = bitcast <1 x i8 addrspace(4)*> addrspace(4)* %loc to i8 addrspace(4)*
%src.bc = bitcast <4 x i64>* @NonZeroConstant to i8*
call void @llvm.memcpy.p4i8.p0i8.i64(i8 addrspace(4)* align 4 %loc.bc, i8* %src.bc, i64 8, i1 false)
%ref = load <1 x i8 addrspace(4)*>, <1 x i8 addrspace(4)*> addrspace(4)* %loc
ret <1 x i8 addrspace(4)*> %ref
}
[GVN] add early exit to ConstantFoldLoadThroughBitcast [NFC] And adds some additional test coverage to ensure later commits don't introduce regressions. Differential Revision: https://reviews.llvm.org/D59730
2019-11-07 00:47:40 +08:00
define <4 x i64 addrspace(4)*> @neg_forward_memcpy_vload2(<4 x i64 addrspace(4)*> addrspace(4)* %loc) {
; CHECK-LABEL: @neg_forward_memcpy_vload2(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[LOC_BC:%.*]] = bitcast <4 x i64 addrspace(4)*> addrspace(4)* [[LOC:%.*]] to i8 addrspace(4)*
; CHECK-NEXT: call void @llvm.memcpy.p4i8.p0i8.i64(i8 addrspace(4)* align 4 [[LOC_BC]], i8* bitcast (<4 x i64>* @NonZeroConstant to i8*), i64 32, i1 false)
[gvn] Handle a corner case w/vectors of non-integral pointers If we try to coerce a vector of non-integral pointers to a narrower type (either narrower vector or single pointer), we use inttoptr and violate the semantics of non-integral pointers. In theory, we can handle many of these cases, we just need to use a different code idiom to convert without going through inttoptr and back. This shows up as wrong code bugs, and in some cases, crashes due to failed asserts. Modeled after a change which has lived downstream for a couple years, though completely rewritten to be more idiomatic.
2020-10-02 10:17:21 +08:00
; CHECK-NEXT: [[REF:%.*]] = load <4 x i64 addrspace(4)*>, <4 x i64 addrspace(4)*> addrspace(4)* [[LOC]], align 32
[GVN] add early exit to ConstantFoldLoadThroughBitcast [NFC] And adds some additional test coverage to ensure later commits don't introduce regressions. Differential Revision: https://reviews.llvm.org/D59730
2019-11-07 00:47:40 +08:00
; CHECK-NEXT: ret <4 x i64 addrspace(4)*> [[REF]]
;
entry:
%loc.bc = bitcast <4 x i64 addrspace(4)*> addrspace(4)* %loc to i8 addrspace(4)*
%src.bc = bitcast <4 x i64>* @NonZeroConstant to i8*
call void @llvm.memcpy.p4i8.p0i8.i64(i8 addrspace(4)* align 4 %loc.bc, i8* %src.bc, i64 32, i1 false)
%ref = load <4 x i64 addrspace(4)*>, <4 x i64 addrspace(4)*> addrspace(4)* %loc
ret <4 x i64 addrspace(4)*> %ref
}
define <4 x i64> @neg_forward_memcpy_vload3(<4 x i64> addrspace(4)* %loc) {
; CHECK-LABEL: @neg_forward_memcpy_vload3(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[LOC_BC:%.*]] = bitcast <4 x i64> addrspace(4)* [[LOC:%.*]] to i8 addrspace(4)*
; CHECK-NEXT: call void @llvm.memcpy.p4i8.p0i8.i64(i8 addrspace(4)* align 4 [[LOC_BC]], i8* bitcast (<4 x i64 addrspace(4)*>* @NonZeroConstant2 to i8*), i64 32, i1 false)
[gvn] Handle a corner case w/vectors of non-integral pointers If we try to coerce a vector of non-integral pointers to a narrower type (either narrower vector or single pointer), we use inttoptr and violate the semantics of non-integral pointers. In theory, we can handle many of these cases, we just need to use a different code idiom to convert without going through inttoptr and back. This shows up as wrong code bugs, and in some cases, crashes due to failed asserts. Modeled after a change which has lived downstream for a couple years, though completely rewritten to be more idiomatic.
2020-10-02 10:17:21 +08:00
; CHECK-NEXT: [[REF:%.*]] = load <4 x i64>, <4 x i64> addrspace(4)* [[LOC]], align 32
[GVN] add early exit to ConstantFoldLoadThroughBitcast [NFC] And adds some additional test coverage to ensure later commits don't introduce regressions. Differential Revision: https://reviews.llvm.org/D59730
2019-11-07 00:47:40 +08:00
; CHECK-NEXT: ret <4 x i64> [[REF]]
;
entry:
%loc.bc = bitcast <4 x i64> addrspace(4)* %loc to i8 addrspace(4)*
%src.bc = bitcast <4 x i64 addrspace(4)*>* @NonZeroConstant2 to i8*
call void @llvm.memcpy.p4i8.p0i8.i64(i8 addrspace(4)* align 4 %loc.bc, i8* %src.bc, i64 32, i1 false)
%ref = load <4 x i64>, <4 x i64> addrspace(4)* %loc
ret <4 x i64> %ref
}
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
[GVN] teach ConstantFolding correct handling of non-integral addrspace casts Here we teach the ConstantFolding analysis pass that it is not legal to replace a load of a bitcast constant (having a non-integral addrspace) with a bitcast of the value of that constant (with a different non-integral addrspace). But also teach it that certain bit patterns are always known and convertable (a fact it already uses elsewhere). This required us to also fix a globalopt test, since, after this change, LLVM is able to realize that the test actually is a valid transform (NULL is always a known bit-pattern) and so it doesn't need to emit the failure remarks for it. Also simplify some of the negative tests for transforms by avoiding a type change in their bitcast, and add positive versions of the same tests, to show that they otherwise should work. Differential Revision: https://reviews.llvm.org/D59730
2019-11-07 01:01:57 +08:00
define <1 x i64 addrspace(4)*> @forward_memcpy_vload3(<4 x i64 addrspace(4)*> addrspace(4)* %loc) {
; CHECK-LABEL: @forward_memcpy_vload3(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[LOC_BC:%.*]] = bitcast <4 x i64 addrspace(4)*> addrspace(4)* [[LOC:%.*]] to i8 addrspace(4)*
; CHECK-NEXT: call void @llvm.memcpy.p4i8.p0i8.i64(i8 addrspace(4)* align 4 [[LOC_BC]], i8* bitcast (<4 x i64 addrspace(4)*>* @NonZeroConstant2 to i8*), i64 32, i1 false)
; CHECK-NEXT: ret <1 x i64 addrspace(4)*> <i64 addrspace(4)* getelementptr (i64, i64 addrspace(4)* null, i32 3)>
;
entry:
%loc.bc = bitcast <4 x i64 addrspace(4)*> addrspace(4)* %loc to i8 addrspace(4)*
%src.bc = bitcast <4 x i64 addrspace(4)*>* @NonZeroConstant2 to i8*
call void @llvm.memcpy.p4i8.p0i8.i64(i8 addrspace(4)* align 4 %loc.bc, i8* %src.bc, i64 32, i1 false)
%ref = load <4 x i64 addrspace(4)*>, <4 x i64 addrspace(4)*> addrspace(4)* %loc
%val = extractelement <4 x i64 addrspace(4)*> %ref, i32 0
%ret = insertelement <1 x i64 addrspace(4)*> undef, i64 addrspace(4)* %val, i32 0
ret <1 x i64 addrspace(4)*> %ret
}
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
; Can forward since we can do so w/o breaking types
define i8 addrspace(4)* @forward_memcpy_zero(i8 addrspace(4)* addrspace(4)* %loc) {
; CHECK-LABEL: @forward_memcpy_zero(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[LOC_BC:%.*]] = bitcast i8 addrspace(4)* addrspace(4)* [[LOC:%.*]] to i8 addrspace(4)*
; CHECK-NEXT: call void @llvm.memcpy.p4i8.p0i8.i64(i8 addrspace(4)* align 4 [[LOC_BC]], i8* bitcast (<4 x i64>* @ZeroConstant to i8*), i64 8, i1 false)
[GVN] teach ConstantFolding correct handling of non-integral addrspace casts Here we teach the ConstantFolding analysis pass that it is not legal to replace a load of a bitcast constant (having a non-integral addrspace) with a bitcast of the value of that constant (with a different non-integral addrspace). But also teach it that certain bit patterns are always known and convertable (a fact it already uses elsewhere). This required us to also fix a globalopt test, since, after this change, LLVM is able to realize that the test actually is a valid transform (NULL is always a known bit-pattern) and so it doesn't need to emit the failure remarks for it. Also simplify some of the negative tests for transforms by avoiding a type change in their bitcast, and add positive versions of the same tests, to show that they otherwise should work. Differential Revision: https://reviews.llvm.org/D59730
2019-11-07 01:01:57 +08:00
; CHECK-NEXT: ret i8 addrspace(4)* null
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
;
entry:
%loc.bc = bitcast i8 addrspace(4)* addrspace(4)* %loc to i8 addrspace(4)*
%src.bc = bitcast <4 x i64>* @ZeroConstant to i8*
call void @llvm.memcpy.p4i8.p0i8.i64(i8 addrspace(4)* align 4 %loc.bc, i8* %src.bc, i64 8, i1 false)
%ref = load i8 addrspace(4)*, i8 addrspace(4)* addrspace(4)* %loc
ret i8 addrspace(4)* %ref
}
declare void @llvm.memcpy.p4i8.p0i8.i64(i8 addrspace(4)* nocapture, i8* nocapture, i64, i1) nounwind
; Same as the neg_forward_store cases, but for non defs.
; (Pretend we wrote out the alwaysfalse idiom above.)
define i8 addrspace(4)* @neg_store_clobber(i8 addrspace(4)* addrspace(4)* %loc) {
; CHECK-LABEL: @neg_store_clobber(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[LOC_BC:%.*]] = bitcast i8 addrspace(4)* addrspace(4)* [[LOC:%.*]] to <2 x i64> addrspace(4)*
StoreInst should store Align, not MaybeAlign This is D77454, except for stores. All the infrastructure work was done for loads, so the remaining changes necessary are relatively small. Differential Revision: https://reviews.llvm.org/D79968
2020-05-15 05:48:10 +08:00
; CHECK-NEXT: store <2 x i64> <i64 4, i64 4>, <2 x i64> addrspace(4)* [[LOC_BC]], align 16
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
; CHECK-NEXT: [[LOC_OFF:%.*]] = getelementptr i8 addrspace(4)*, i8 addrspace(4)* addrspace(4)* [[LOC]], i64 1
StoreInst should store Align, not MaybeAlign This is D77454, except for stores. All the infrastructure work was done for loads, so the remaining changes necessary are relatively small. Differential Revision: https://reviews.llvm.org/D79968
2020-05-15 05:48:10 +08:00
; CHECK-NEXT: [[REF:%.*]] = load i8 addrspace(4)*, i8 addrspace(4)* addrspace(4)* [[LOC_OFF]], align 8
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
; CHECK-NEXT: ret i8 addrspace(4)* [[REF]]
;
entry:
%loc.bc = bitcast i8 addrspace(4)* addrspace(4)* %loc to <2 x i64> addrspace(4)*
store <2 x i64> <i64 4, i64 4>, <2 x i64> addrspace(4)* %loc.bc
%loc.off = getelementptr i8 addrspace(4)*, i8 addrspace(4)* addrspace(4)* %loc, i64 1
%ref = load i8 addrspace(4)*, i8 addrspace(4)* addrspace(4)* %loc.off
ret i8 addrspace(4)* %ref
}
declare void @use(<2 x i64>) inaccessiblememonly
; Same as the neg_forward_store cases, but for non defs.
; (Pretend we wrote out the alwaysfalse idiom above.)
define i8 addrspace(4)* @neg_load_clobber(i8 addrspace(4)* addrspace(4)* %loc) {
; CHECK-LABEL: @neg_load_clobber(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[LOC_BC:%.*]] = bitcast i8 addrspace(4)* addrspace(4)* [[LOC:%.*]] to <2 x i64> addrspace(4)*
StoreInst should store Align, not MaybeAlign This is D77454, except for stores. All the infrastructure work was done for loads, so the remaining changes necessary are relatively small. Differential Revision: https://reviews.llvm.org/D79968
2020-05-15 05:48:10 +08:00
; CHECK-NEXT: [[V:%.*]] = load <2 x i64>, <2 x i64> addrspace(4)* [[LOC_BC]], align 16
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
; CHECK-NEXT: call void @use(<2 x i64> [[V]])
; CHECK-NEXT: [[LOC_OFF:%.*]] = getelementptr i8 addrspace(4)*, i8 addrspace(4)* addrspace(4)* [[LOC]], i64 1
StoreInst should store Align, not MaybeAlign This is D77454, except for stores. All the infrastructure work was done for loads, so the remaining changes necessary are relatively small. Differential Revision: https://reviews.llvm.org/D79968
2020-05-15 05:48:10 +08:00
; CHECK-NEXT: [[REF:%.*]] = load i8 addrspace(4)*, i8 addrspace(4)* addrspace(4)* [[LOC_OFF]], align 8
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
; CHECK-NEXT: ret i8 addrspace(4)* [[REF]]
;
entry:
%loc.bc = bitcast i8 addrspace(4)* addrspace(4)* %loc to <2 x i64> addrspace(4)*
%v = load <2 x i64>, <2 x i64> addrspace(4)* %loc.bc
call void @use(<2 x i64> %v)
%loc.off = getelementptr i8 addrspace(4)*, i8 addrspace(4)* addrspace(4)* %loc, i64 1
%ref = load i8 addrspace(4)*, i8 addrspace(4)* addrspace(4)* %loc.off
ret i8 addrspace(4)* %ref
}
define i8 addrspace(4)* @store_clobber_zero(i8 addrspace(4)* addrspace(4)* %loc) {
; CHECK-LABEL: @store_clobber_zero(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[LOC_BC:%.*]] = bitcast i8 addrspace(4)* addrspace(4)* [[LOC:%.*]] to <2 x i64> addrspace(4)*
StoreInst should store Align, not MaybeAlign This is D77454, except for stores. All the infrastructure work was done for loads, so the remaining changes necessary are relatively small. Differential Revision: https://reviews.llvm.org/D79968
2020-05-15 05:48:10 +08:00
; CHECK-NEXT: store <2 x i64> zeroinitializer, <2 x i64> addrspace(4)* [[LOC_BC]], align 16
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
; CHECK-NEXT: [[LOC_OFF:%.*]] = getelementptr i8 addrspace(4)*, i8 addrspace(4)* addrspace(4)* [[LOC]], i64 1
; CHECK-NEXT: ret i8 addrspace(4)* null
;
entry:
%loc.bc = bitcast i8 addrspace(4)* addrspace(4)* %loc to <2 x i64> addrspace(4)*
store <2 x i64> zeroinitializer, <2 x i64> addrspace(4)* %loc.bc
%loc.off = getelementptr i8 addrspace(4)*, i8 addrspace(4)* addrspace(4)* %loc, i64 1
%ref = load i8 addrspace(4)*, i8 addrspace(4)* addrspace(4)* %loc.off
ret i8 addrspace(4)* %ref
}
[gvn] Handle a corner case w/vectors of non-integral pointers If we try to coerce a vector of non-integral pointers to a narrower type (either narrower vector or single pointer), we use inttoptr and violate the semantics of non-integral pointers. In theory, we can handle many of these cases, we just need to use a different code idiom to convert without going through inttoptr and back. This shows up as wrong code bugs, and in some cases, crashes due to failed asserts. Modeled after a change which has lived downstream for a couple years, though completely rewritten to be more idiomatic.
2020-10-02 10:17:21 +08:00
define void @smaller_vector(i8* %p) {
; CHECK-LABEL: @smaller_vector(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[A:%.*]] = bitcast i8* [[P:%.*]] to <4 x i64 addrspace(4)*>*
; CHECK-NEXT: [[B:%.*]] = bitcast i8* [[P]] to <2 x i64 addrspace(4)*>*
; CHECK-NEXT: [[V4:%.*]] = load <4 x i64 addrspace(4)*>, <4 x i64 addrspace(4)*>* [[A]], align 32
; CHECK-NEXT: [[V2:%.*]] = load <2 x i64 addrspace(4)*>, <2 x i64 addrspace(4)*>* [[B]], align 32
; CHECK-NEXT: call void @use.v2(<2 x i64 addrspace(4)*> [[V2]])
; CHECK-NEXT: call void @use.v4(<4 x i64 addrspace(4)*> [[V4]])
; CHECK-NEXT: ret void
;
entry:
%a = bitcast i8* %p to <4 x i64 addrspace(4)*>*
%b = bitcast i8* %p to <2 x i64 addrspace(4)*>*
%v4 = load <4 x i64 addrspace(4)*>, <4 x i64 addrspace(4)*>* %a, align 32
%v2 = load <2 x i64 addrspace(4)*>, <2 x i64 addrspace(4)*>* %b, align 32
call void @use.v2(<2 x i64 addrspace(4)*> %v2)
call void @use.v4(<4 x i64 addrspace(4)*> %v4)
ret void
}
define i64 addrspace(4)* @vector_extract(i8* %p) {
; CHECK-LABEL: @vector_extract(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[A:%.*]] = bitcast i8* [[P:%.*]] to <4 x i64 addrspace(4)*>*
; CHECK-NEXT: [[B:%.*]] = bitcast i8* [[P]] to i64 addrspace(4)**
; CHECK-NEXT: [[V4:%.*]] = load <4 x i64 addrspace(4)*>, <4 x i64 addrspace(4)*>* [[A]], align 32
; CHECK-NEXT: [[RES:%.*]] = load i64 addrspace(4)*, i64 addrspace(4)** [[B]], align 32
; CHECK-NEXT: call void @use.v4(<4 x i64 addrspace(4)*> [[V4]])
; CHECK-NEXT: ret i64 addrspace(4)* [[RES]]
;
entry:
%a = bitcast i8* %p to <4 x i64 addrspace(4)*>*
%b = bitcast i8* %p to i64 addrspace(4)**
%v4 = load <4 x i64 addrspace(4)*>, <4 x i64 addrspace(4)*>* %a, align 32
%res = load i64 addrspace(4)*, i64 addrspace(4)** %b, align 32
call void @use.v4(<4 x i64 addrspace(4)*> %v4)
ret i64 addrspace(4)* %res
}
declare void @use.v2(<2 x i64 addrspace(4)*>)
declare void @use.v4(<4 x i64 addrspace(4)*>)