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6d1fcfb76b
There are no vldN/vstN f16 variants, even with +fullfp16. We could use the i16 variants, but, in practice, even with +fullfp16, the f16 sequence leading to the i16 shuffle usually gets scalarized. We'd need to improve our support for f16 codegen before getting there. Teach the cost model to consider f16 interleaved operations as expensive. Otherwise, we are all but guaranteed to end up with a large block of scalarized vector code. llvm-svn: 294819
133 lines
6.7 KiB
LLVM
133 lines
6.7 KiB
LLVM
; RUN: opt -loop-vectorize -force-vector-width=2 -debug-only=loop-vectorize -disable-output < %s 2>&1 | FileCheck %s --check-prefix=VF_2
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; RUN: opt -loop-vectorize -force-vector-width=4 -debug-only=loop-vectorize -disable-output < %s 2>&1 | FileCheck %s --check-prefix=VF_4
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; RUN: opt -loop-vectorize -force-vector-width=8 -debug-only=loop-vectorize -disable-output < %s 2>&1 | FileCheck %s --check-prefix=VF_8
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; RUN: opt -loop-vectorize -force-vector-width=16 -debug-only=loop-vectorize -disable-output < %s 2>&1 | FileCheck %s --check-prefix=VF_16
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; REQUIRES: asserts
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target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128"
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target triple = "armv8--linux-gnueabihf"
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%i8.2 = type {i8, i8}
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define void @i8_factor_2(%i8.2* %data, i64 %n) {
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entry:
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br label %for.body
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; VF_8-LABEL: Checking a loop in "i8_factor_2"
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; VF_8: Found an estimated cost of 2 for VF 8 For instruction: %tmp2 = load i8, i8* %tmp0, align 1
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; VF_8-NEXT: Found an estimated cost of 0 for VF 8 For instruction: %tmp3 = load i8, i8* %tmp1, align 1
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; VF_8-NEXT: Found an estimated cost of 0 for VF 8 For instruction: store i8 0, i8* %tmp0, align 1
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; VF_8-NEXT: Found an estimated cost of 2 for VF 8 For instruction: store i8 0, i8* %tmp1, align 1
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; VF_16-LABEL: Checking a loop in "i8_factor_2"
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; VF_16: Found an estimated cost of 2 for VF 16 For instruction: %tmp2 = load i8, i8* %tmp0, align 1
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; VF_16-NEXT: Found an estimated cost of 0 for VF 16 For instruction: %tmp3 = load i8, i8* %tmp1, align 1
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; VF_16-NEXT: Found an estimated cost of 0 for VF 16 For instruction: store i8 0, i8* %tmp0, align 1
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; VF_16-NEXT: Found an estimated cost of 2 for VF 16 For instruction: store i8 0, i8* %tmp1, align 1
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for.body:
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%i = phi i64 [ 0, %entry ], [ %i.next, %for.body ]
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%tmp0 = getelementptr inbounds %i8.2, %i8.2* %data, i64 %i, i32 0
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%tmp1 = getelementptr inbounds %i8.2, %i8.2* %data, i64 %i, i32 1
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%tmp2 = load i8, i8* %tmp0, align 1
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%tmp3 = load i8, i8* %tmp1, align 1
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store i8 0, i8* %tmp0, align 1
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store i8 0, i8* %tmp1, align 1
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%i.next = add nuw nsw i64 %i, 1
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%cond = icmp slt i64 %i.next, %n
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br i1 %cond, label %for.body, label %for.end
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for.end:
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ret void
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}
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%i16.2 = type {i16, i16}
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define void @i16_factor_2(%i16.2* %data, i64 %n) {
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entry:
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br label %for.body
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; VF_4-LABEL: Checking a loop in "i16_factor_2"
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; VF_4: Found an estimated cost of 2 for VF 4 For instruction: %tmp2 = load i16, i16* %tmp0, align 2
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; VF_4-NEXT: Found an estimated cost of 0 for VF 4 For instruction: %tmp3 = load i16, i16* %tmp1, align 2
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; VF_4-NEXT: Found an estimated cost of 0 for VF 4 For instruction: store i16 0, i16* %tmp0, align 2
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; VF_4-NEXT: Found an estimated cost of 2 for VF 4 For instruction: store i16 0, i16* %tmp1, align 2
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; VF_8-LABEL: Checking a loop in "i16_factor_2"
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; VF_8: Found an estimated cost of 2 for VF 8 For instruction: %tmp2 = load i16, i16* %tmp0, align 2
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; VF_8-NEXT: Found an estimated cost of 0 for VF 8 For instruction: %tmp3 = load i16, i16* %tmp1, align 2
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; VF_8-NEXT: Found an estimated cost of 0 for VF 8 For instruction: store i16 0, i16* %tmp0, align 2
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; VF_8-NEXT: Found an estimated cost of 2 for VF 8 For instruction: store i16 0, i16* %tmp1, align 2
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for.body:
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%i = phi i64 [ 0, %entry ], [ %i.next, %for.body ]
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%tmp0 = getelementptr inbounds %i16.2, %i16.2* %data, i64 %i, i32 0
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%tmp1 = getelementptr inbounds %i16.2, %i16.2* %data, i64 %i, i32 1
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%tmp2 = load i16, i16* %tmp0, align 2
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%tmp3 = load i16, i16* %tmp1, align 2
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store i16 0, i16* %tmp0, align 2
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store i16 0, i16* %tmp1, align 2
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%i.next = add nuw nsw i64 %i, 1
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%cond = icmp slt i64 %i.next, %n
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br i1 %cond, label %for.body, label %for.end
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for.end:
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ret void
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}
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%i32.2 = type {i32, i32}
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define void @i32_factor_2(%i32.2* %data, i64 %n) {
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entry:
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br label %for.body
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; VF_2-LABEL: Checking a loop in "i32_factor_2"
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; VF_2: Found an estimated cost of 2 for VF 2 For instruction: %tmp2 = load i32, i32* %tmp0, align 4
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; VF_2-NEXT: Found an estimated cost of 0 for VF 2 For instruction: %tmp3 = load i32, i32* %tmp1, align 4
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; VF_2-NEXT: Found an estimated cost of 0 for VF 2 For instruction: store i32 0, i32* %tmp0, align 4
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; VF_2-NEXT: Found an estimated cost of 2 for VF 2 For instruction: store i32 0, i32* %tmp1, align 4
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; VF_4-LABEL: Checking a loop in "i32_factor_2"
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; VF_4: Found an estimated cost of 2 for VF 4 For instruction: %tmp2 = load i32, i32* %tmp0, align 4
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; VF_4-NEXT: Found an estimated cost of 0 for VF 4 For instruction: %tmp3 = load i32, i32* %tmp1, align 4
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; VF_4-NEXT: Found an estimated cost of 0 for VF 4 For instruction: store i32 0, i32* %tmp0, align 4
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; VF_4-NEXT: Found an estimated cost of 2 for VF 4 For instruction: store i32 0, i32* %tmp1, align 4
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for.body:
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%i = phi i64 [ 0, %entry ], [ %i.next, %for.body ]
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%tmp0 = getelementptr inbounds %i32.2, %i32.2* %data, i64 %i, i32 0
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%tmp1 = getelementptr inbounds %i32.2, %i32.2* %data, i64 %i, i32 1
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%tmp2 = load i32, i32* %tmp0, align 4
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%tmp3 = load i32, i32* %tmp1, align 4
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store i32 0, i32* %tmp0, align 4
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store i32 0, i32* %tmp1, align 4
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%i.next = add nuw nsw i64 %i, 1
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%cond = icmp slt i64 %i.next, %n
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br i1 %cond, label %for.body, label %for.end
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for.end:
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ret void
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}
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%half.2 = type {half, half}
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define void @half_factor_2(%half.2* %data, i64 %n) {
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entry:
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br label %for.body
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; VF_4-LABEL: Checking a loop in "half_factor_2"
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; VF_4: Found an estimated cost of 40 for VF 4 For instruction: %tmp2 = load half, half* %tmp0, align 2
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; VF_4-NEXT: Found an estimated cost of 0 for VF 4 For instruction: %tmp3 = load half, half* %tmp1, align 2
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; VF_4-NEXT: Found an estimated cost of 0 for VF 4 For instruction: store half 0xH0000, half* %tmp0, align 2
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; VF_4-NEXT: Found an estimated cost of 40 for VF 4 For instruction: store half 0xH0000, half* %tmp1, align 2
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; VF_8-LABEL: Checking a loop in "half_factor_2"
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; VF_8: Found an estimated cost of 80 for VF 8 For instruction: %tmp2 = load half, half* %tmp0, align 2
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; VF_8-NEXT: Found an estimated cost of 0 for VF 8 For instruction: %tmp3 = load half, half* %tmp1, align 2
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; VF_8-NEXT: Found an estimated cost of 0 for VF 8 For instruction: store half 0xH0000, half* %tmp0, align 2
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; VF_8-NEXT: Found an estimated cost of 80 for VF 8 For instruction: store half 0xH0000, half* %tmp1, align 2
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for.body:
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%i = phi i64 [ 0, %entry ], [ %i.next, %for.body ]
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%tmp0 = getelementptr inbounds %half.2, %half.2* %data, i64 %i, i32 0
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%tmp1 = getelementptr inbounds %half.2, %half.2* %data, i64 %i, i32 1
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%tmp2 = load half, half* %tmp0, align 2
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%tmp3 = load half, half* %tmp1, align 2
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store half 0., half* %tmp0, align 2
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store half 0., half* %tmp1, align 2
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%i.next = add nuw nsw i64 %i, 1
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%cond = icmp slt i64 %i.next, %n
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br i1 %cond, label %for.body, label %for.end
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for.end:
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ret void
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}
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