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|
; RUN: opt < %s -S -mtriple=aarch64-none-linux-gnu -mattr=+neon -early-cse | FileCheck %s
; RUN: opt < %s -S -mtriple=aarch64-none-linux-gnu -mattr=+neon -passes=early-cse | FileCheck %s
define <4 x i32> @test_cse(i32* %a, [2 x <4 x i32>] %s.coerce, i32 %n) {
entry:
; Check that @llvm.aarch64.neon.ld2 is optimized away by Early CSE.
; CHECK-LABEL: @test_cse
; CHECK-NOT: call { <4 x i32>, <4 x i32> } @llvm.aarch64.neon.ld2.v4i32.p0i8
%s.coerce.fca.0.extract = extractvalue [2 x <4 x i32>] %s.coerce, 0
%s.coerce.fca.1.extract = extractvalue [2 x <4 x i32>] %s.coerce, 1
br label %for.cond
for.cond: ; preds = %for.body, %entry
%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
%res.0 = phi <4 x i32> [ undef, %entry ], [ %call, %for.body ]
%cmp = icmp slt i32 %i.0, %n
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
%0 = bitcast i32* %a to i8*
%1 = bitcast <4 x i32> %s.coerce.fca.0.extract to <16 x i8>
%2 = bitcast <4 x i32> %s.coerce.fca.1.extract to <16 x i8>
%3 = bitcast <16 x i8> %1 to <4 x i32>
%4 = bitcast <16 x i8> %2 to <4 x i32>
call void @llvm.aarch64.neon.st2.v4i32.p0i8(<4 x i32> %3, <4 x i32> %4, i8* %0)
%5 = bitcast i32* %a to i8*
%vld2 = call { <4 x i32>, <4 x i32> } @llvm.aarch64.neon.ld2.v4i32.p0i8(i8* %5)
%vld2.fca.0.extract = extractvalue { <4 x i32>, <4 x i32> } %vld2, 0
%vld2.fca.1.extract = extractvalue { <4 x i32>, <4 x i32> } %vld2, 1
%call = call <4 x i32> @vaddq_s32(<4 x i32> %vld2.fca.0.extract, <4 x i32> %vld2.fca.0.extract)
%inc = add nsw i32 %i.0, 1
br label %for.cond
for.end: ; preds = %for.cond
ret <4 x i32> %res.0
}
define <4 x i32> @test_cse2(i32* %a, [2 x <4 x i32>] %s.coerce, i32 %n) {
entry:
; Check that the first @llvm.aarch64.neon.st2 is optimized away by Early CSE.
; CHECK-LABEL: @test_cse2
; CHECK-NOT: call void @llvm.aarch64.neon.st2.v4i32.p0i8(<4 x i32> %3, <4 x i32> %3, i8* %0)
; CHECK: call void @llvm.aarch64.neon.st2.v4i32.p0i8(<4 x i32> %3, <4 x i32> %4, i8* %0)
%s.coerce.fca.0.extract = extractvalue [2 x <4 x i32>] %s.coerce, 0
%s.coerce.fca.1.extract = extractvalue [2 x <4 x i32>] %s.coerce, 1
br label %for.cond
for.cond: ; preds = %for.body, %entry
%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
%res.0 = phi <4 x i32> [ undef, %entry ], [ %call, %for.body ]
%cmp = icmp slt i32 %i.0, %n
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
%0 = bitcast i32* %a to i8*
%1 = bitcast <4 x i32> %s.coerce.fca.0.extract to <16 x i8>
%2 = bitcast <4 x i32> %s.coerce.fca.1.extract to <16 x i8>
%3 = bitcast <16 x i8> %1 to <4 x i32>
%4 = bitcast <16 x i8> %2 to <4 x i32>
call void @llvm.aarch64.neon.st2.v4i32.p0i8(<4 x i32> %3, <4 x i32> %3, i8* %0)
call void @llvm.aarch64.neon.st2.v4i32.p0i8(<4 x i32> %3, <4 x i32> %4, i8* %0)
%5 = bitcast i32* %a to i8*
%vld2 = call { <4 x i32>, <4 x i32> } @llvm.aarch64.neon.ld2.v4i32.p0i8(i8* %5)
%vld2.fca.0.extract = extractvalue { <4 x i32>, <4 x i32> } %vld2, 0
%vld2.fca.1.extract = extractvalue { <4 x i32>, <4 x i32> } %vld2, 1
%call = call <4 x i32> @vaddq_s32(<4 x i32> %vld2.fca.0.extract, <4 x i32> %vld2.fca.0.extract)
%inc = add nsw i32 %i.0, 1
br label %for.cond
for.end: ; preds = %for.cond
ret <4 x i32> %res.0
}
define <4 x i32> @test_cse3(i32* %a, [2 x <4 x i32>] %s.coerce, i32 %n) #0 {
entry:
; Check that the first @llvm.aarch64.neon.ld2 is optimized away by Early CSE.
; CHECK-LABEL: @test_cse3
; CHECK: call { <4 x i32>, <4 x i32> } @llvm.aarch64.neon.ld2.v4i32.p0i8
; CHECK-NOT: call { <4 x i32>, <4 x i32> } @llvm.aarch64.neon.ld2.v4i32.p0i8
%s.coerce.fca.0.extract = extractvalue [2 x <4 x i32>] %s.coerce, 0
%s.coerce.fca.1.extract = extractvalue [2 x <4 x i32>] %s.coerce, 1
br label %for.cond
for.cond: ; preds = %for.body, %entry
%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
%res.0 = phi <4 x i32> [ undef, %entry ], [ %call, %for.body ]
%cmp = icmp slt i32 %i.0, %n
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
%0 = bitcast i32* %a to i8*
%vld2 = call { <4 x i32>, <4 x i32> } @llvm.aarch64.neon.ld2.v4i32.p0i8(i8* %0)
%vld2.fca.0.extract = extractvalue { <4 x i32>, <4 x i32> } %vld2, 0
%vld2.fca.1.extract = extractvalue { <4 x i32>, <4 x i32> } %vld2, 1
%1 = bitcast i32* %a to i8*
%vld22 = call { <4 x i32>, <4 x i32> } @llvm.aarch64.neon.ld2.v4i32.p0i8(i8* %1)
%vld22.fca.0.extract = extractvalue { <4 x i32>, <4 x i32> } %vld22, 0
%vld22.fca.1.extract = extractvalue { <4 x i32>, <4 x i32> } %vld22, 1
%call = call <4 x i32> @vaddq_s32(<4 x i32> %vld2.fca.0.extract, <4 x i32> %vld22.fca.0.extract)
%inc = add nsw i32 %i.0, 1
br label %for.cond
for.end: ; preds = %for.cond
ret <4 x i32> %res.0
}
define <4 x i32> @test_nocse(i32* %a, i32* %b, [2 x <4 x i32>] %s.coerce, i32 %n) {
entry:
; Check that the store prevents @llvm.aarch64.neon.ld2 from being optimized
; away by Early CSE.
; CHECK-LABEL: @test_nocse
; CHECK: call { <4 x i32>, <4 x i32> } @llvm.aarch64.neon.ld2.v4i32.p0i8
%s.coerce.fca.0.extract = extractvalue [2 x <4 x i32>] %s.coerce, 0
%s.coerce.fca.1.extract = extractvalue [2 x <4 x i32>] %s.coerce, 1
br label %for.cond
for.cond: ; preds = %for.body, %entry
%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
%res.0 = phi <4 x i32> [ undef, %entry ], [ %call, %for.body ]
%cmp = icmp slt i32 %i.0, %n
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
%0 = bitcast i32* %a to i8*
%1 = bitcast <4 x i32> %s.coerce.fca.0.extract to <16 x i8>
%2 = bitcast <4 x i32> %s.coerce.fca.1.extract to <16 x i8>
%3 = bitcast <16 x i8> %1 to <4 x i32>
%4 = bitcast <16 x i8> %2 to <4 x i32>
call void @llvm.aarch64.neon.st2.v4i32.p0i8(<4 x i32> %3, <4 x i32> %4, i8* %0)
store i32 0, i32* %b, align 4
%5 = bitcast i32* %a to i8*
%vld2 = call { <4 x i32>, <4 x i32> } @llvm.aarch64.neon.ld2.v4i32.p0i8(i8* %5)
%vld2.fca.0.extract = extractvalue { <4 x i32>, <4 x i32> } %vld2, 0
%vld2.fca.1.extract = extractvalue { <4 x i32>, <4 x i32> } %vld2, 1
%call = call <4 x i32> @vaddq_s32(<4 x i32> %vld2.fca.0.extract, <4 x i32> %vld2.fca.0.extract)
%inc = add nsw i32 %i.0, 1
br label %for.cond
for.end: ; preds = %for.cond
ret <4 x i32> %res.0
}
define <4 x i32> @test_nocse2(i32* %a, [2 x <4 x i32>] %s.coerce, i32 %n) {
entry:
; Check that @llvm.aarch64.neon.ld3 is not optimized away by Early CSE due
; to mismatch between st2 and ld3.
; CHECK-LABEL: @test_nocse2
; CHECK: call { <4 x i32>, <4 x i32>, <4 x i32> } @llvm.aarch64.neon.ld3.v4i32.p0i8
%s.coerce.fca.0.extract = extractvalue [2 x <4 x i32>] %s.coerce, 0
%s.coerce.fca.1.extract = extractvalue [2 x <4 x i32>] %s.coerce, 1
br label %for.cond
for.cond: ; preds = %for.body, %entry
%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
%res.0 = phi <4 x i32> [ undef, %entry ], [ %call, %for.body ]
%cmp = icmp slt i32 %i.0, %n
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
%0 = bitcast i32* %a to i8*
%1 = bitcast <4 x i32> %s.coerce.fca.0.extract to <16 x i8>
%2 = bitcast <4 x i32> %s.coerce.fca.1.extract to <16 x i8>
%3 = bitcast <16 x i8> %1 to <4 x i32>
%4 = bitcast <16 x i8> %2 to <4 x i32>
call void @llvm.aarch64.neon.st2.v4i32.p0i8(<4 x i32> %3, <4 x i32> %4, i8* %0)
%5 = bitcast i32* %a to i8*
%vld3 = call { <4 x i32>, <4 x i32>, <4 x i32> } @llvm.aarch64.neon.ld3.v4i32.p0i8(i8* %5)
%vld3.fca.0.extract = extractvalue { <4 x i32>, <4 x i32>, <4 x i32> } %vld3, 0
%vld3.fca.2.extract = extractvalue { <4 x i32>, <4 x i32>, <4 x i32> } %vld3, 2
%call = call <4 x i32> @vaddq_s32(<4 x i32> %vld3.fca.0.extract, <4 x i32> %vld3.fca.2.extract)
%inc = add nsw i32 %i.0, 1
br label %for.cond
for.end: ; preds = %for.cond
ret <4 x i32> %res.0
}
define <4 x i32> @test_nocse3(i32* %a, [2 x <4 x i32>] %s.coerce, i32 %n) {
entry:
; Check that @llvm.aarch64.neon.st3 is not optimized away by Early CSE due to
; mismatch between st2 and st3.
; CHECK-LABEL: @test_nocse3
; CHECK: call void @llvm.aarch64.neon.st3.v4i32.p0i8
; CHECK: call void @llvm.aarch64.neon.st2.v4i32.p0i8
%s.coerce.fca.0.extract = extractvalue [2 x <4 x i32>] %s.coerce, 0
%s.coerce.fca.1.extract = extractvalue [2 x <4 x i32>] %s.coerce, 1
br label %for.cond
for.cond: ; preds = %for.body, %entry
%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
%res.0 = phi <4 x i32> [ undef, %entry ], [ %call, %for.body ]
%cmp = icmp slt i32 %i.0, %n
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
%0 = bitcast i32* %a to i8*
%1 = bitcast <4 x i32> %s.coerce.fca.0.extract to <16 x i8>
%2 = bitcast <4 x i32> %s.coerce.fca.1.extract to <16 x i8>
%3 = bitcast <16 x i8> %1 to <4 x i32>
%4 = bitcast <16 x i8> %2 to <4 x i32>
call void @llvm.aarch64.neon.st3.v4i32.p0i8(<4 x i32> %4, <4 x i32> %3, <4 x i32> %3, i8* %0)
call void @llvm.aarch64.neon.st2.v4i32.p0i8(<4 x i32> %3, <4 x i32> %3, i8* %0)
%5 = bitcast i32* %a to i8*
%vld3 = call { <4 x i32>, <4 x i32>, <4 x i32> } @llvm.aarch64.neon.ld3.v4i32.p0i8(i8* %5)
%vld3.fca.0.extract = extractvalue { <4 x i32>, <4 x i32>, <4 x i32> } %vld3, 0
%vld3.fca.1.extract = extractvalue { <4 x i32>, <4 x i32>, <4 x i32> } %vld3, 1
%call = call <4 x i32> @vaddq_s32(<4 x i32> %vld3.fca.0.extract, <4 x i32> %vld3.fca.0.extract)
%inc = add nsw i32 %i.0, 1
br label %for.cond
for.end: ; preds = %for.cond
ret <4 x i32> %res.0
}
; Function Attrs: nounwind
declare void @llvm.aarch64.neon.st2.v4i32.p0i8(<4 x i32>, <4 x i32>, i8* nocapture)
; Function Attrs: nounwind
declare void @llvm.aarch64.neon.st3.v4i32.p0i8(<4 x i32>, <4 x i32>, <4 x i32>, i8* nocapture)
; Function Attrs: nounwind readonly
declare { <4 x i32>, <4 x i32> } @llvm.aarch64.neon.ld2.v4i32.p0i8(i8*)
; Function Attrs: nounwind readonly
declare { <4 x i32>, <4 x i32>, <4 x i32> } @llvm.aarch64.neon.ld3.v4i32.p0i8(i8*)
define internal fastcc <4 x i32> @vaddq_s32(<4 x i32> %__p0, <4 x i32> %__p1) {
entry:
%add = add <4 x i32> %__p0, %__p1
ret <4 x i32> %add
}
|
