derek.holloway
7502bf64a4
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51 lines
1.5 KiB
LLVM
51 lines
1.5 KiB
LLVM
; RUN: opt -passes=loop-idiom -S < %s -mtriple=r600 -mcpu=redwood | FileCheck --check-prefix=R600 --check-prefix=FUNC %s
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; RUN: opt -passes=loop-idiom -S < %s -mtriple=amdgcn -mcpu=tahiti | FileCheck --check-prefix=SI --check-prefix=FUNC %s
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; RUN: opt -passes=loop-idiom -S < %s -mtriple=amdgcn -mcpu=tonga | FileCheck --check-prefix=SI --check-prefix=FUNC %s
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; Make sure loop-idiom doesn't create memcpy or memset. There are no library
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; implementations of these for R600.
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; FUNC: @no_memcpy
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; R600-NOT: {{^}}llvm.memcpy
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; SI-NOT: {{^}}llvm.memcpy
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define amdgpu_kernel void @no_memcpy(ptr addrspace(3) %in, i32 %size) {
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entry:
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%dest = alloca i8, i32 32, addrspace(5)
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br label %for.body
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for.body:
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%0 = phi i32 [0, %entry], [%4, %for.body]
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%1 = getelementptr i8, ptr addrspace(3) %in, i32 %0
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%2 = getelementptr i8, ptr addrspace(5) %dest, i32 %0
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%3 = load i8, ptr addrspace(3) %1
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store i8 %3, ptr addrspace(5) %2
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%4 = add i32 %0, 1
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%5 = icmp eq i32 %4, %size
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br i1 %5, label %for.end, label %for.body
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for.end:
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ret void
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}
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; FUNC: @no_memset
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; R600-NOT: {{^}}llvm.memset
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; R600-NOT: {{^}}memset_pattern16:
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; SI-NOT: {{^}}llvm.memset
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; SI-NOT: {{^}}memset_pattern16:
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define amdgpu_kernel void @no_memset(i32 %size) {
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entry:
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%dest = alloca i8, i32 32, addrspace(5)
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br label %for.body
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for.body:
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%0 = phi i32 [0, %entry], [%2, %for.body]
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%1 = getelementptr i8, ptr addrspace(5) %dest, i32 %0
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store i8 0, ptr addrspace(5) %1
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%2 = add i32 %0, 1
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%3 = icmp eq i32 %2, %size
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br i1 %3, label %for.end, label %for.body
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for.end:
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ret void
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}
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