82 lines
3.3 KiB
LLVM
82 lines
3.3 KiB
LLVM
; RUN: opt -passes='default<O1>,instnamer' -mtriple=amdgcn-- -S -o - %s | FileCheck -check-prefixes=GCN,O1 %s
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; RUN: opt -passes='default<O2>,instnamer' -mtriple=amdgcn-- -S -o - %s | FileCheck -check-prefixes=GCN,O2 %s
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; RUN: opt -passes='default<O3>,instnamer' -mtriple=amdgcn-- -S -o - %s | FileCheck -check-prefixes=GCN,O3 %s
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target datalayout = "A5"
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; GCN-LABEL: t0
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; O1-NOT: alloca
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; O2-NOT: alloca
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; O3-NOT: alloca
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; GCN-COUNT-27: = load
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; GCN-COUNT-26: = add
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define protected amdgpu_kernel void @t0(ptr addrspace(1) %p.coerce) #0 {
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entry:
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%p = alloca ptr, align 8, addrspace(5)
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%p.ascast = addrspacecast ptr addrspace(5) %p to ptr
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%p.addr = alloca ptr, align 8, addrspace(5)
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%p.addr.ascast = addrspacecast ptr addrspace(5) %p.addr to ptr
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%t = alloca [27 x i32], align 16, addrspace(5)
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%t.ascast = addrspacecast ptr addrspace(5) %t to ptr
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%sum = alloca i32, align 4, addrspace(5)
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%sum.ascast = addrspacecast ptr addrspace(5) %sum to ptr
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%i = alloca i32, align 4, addrspace(5)
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%i.ascast = addrspacecast ptr addrspace(5) %i to ptr
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%cleanup.dest.slot = alloca i32, align 4, addrspace(5)
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%0 = addrspacecast ptr addrspace(1) %p.coerce to ptr
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store ptr %0, ptr %p.ascast, align 8
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%p1 = load ptr, ptr %p.ascast, align 8
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store ptr %p1, ptr %p.addr.ascast, align 8
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call void @llvm.lifetime.start.p5(i64 48, ptr addrspace(5) %t)
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%1 = load ptr, ptr %p.addr.ascast, align 8
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call void @copy(ptr %t.ascast, ptr %1, i32 27)
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call void @llvm.lifetime.start.p5(i64 4, ptr addrspace(5) %sum)
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store i32 0, ptr %sum.ascast, align 4
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call void @llvm.lifetime.start.p5(i64 4, ptr addrspace(5) %i)
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store i32 0, ptr %i.ascast, align 4
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br label %for.cond
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for.cond: ; preds = %for.inc, %entry
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%2 = load i32, ptr %i.ascast, align 4
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%cmp = icmp slt i32 %2, 27
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br i1 %cmp, label %for.body, label %for.cond.cleanup
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for.cond.cleanup: ; preds = %for.cond
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call void @llvm.lifetime.end.p5(i64 4, ptr addrspace(5) %i)
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br label %for.end
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for.body: ; preds = %for.cond
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%3 = load i32, ptr %i.ascast, align 4
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%idxprom = sext i32 %3 to i64
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%arrayidx = getelementptr inbounds [27 x i32], ptr %t.ascast, i64 0, i64 %idxprom
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%4 = load i32, ptr %arrayidx, align 4
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%5 = load i32, ptr %sum.ascast, align 4
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%add = add nsw i32 %5, %4
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store i32 %add, ptr %sum.ascast, align 4
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br label %for.inc
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for.inc: ; preds = %for.body
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%6 = load i32, ptr %i.ascast, align 4
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%inc = add nsw i32 %6, 1
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store i32 %inc, ptr %i.ascast, align 4
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br label %for.cond
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for.end: ; preds = %for.cond.cleanup
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%7 = load i32, ptr %sum.ascast, align 4
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%8 = load ptr, ptr %p.addr.ascast, align 8
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store i32 %7, ptr %8, align 4
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call void @llvm.lifetime.end.p5(i64 4, ptr addrspace(5) %sum)
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call void @llvm.lifetime.end.p5(i64 48, ptr addrspace(5) %t)
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ret void
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}
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define internal void @copy(ptr %d, ptr %s, i32 %N) {
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entry:
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%N8 = mul i32 %N, 4
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tail call void @llvm.memcpy.p0.p0.i32(ptr %d, ptr %s, i32 %N8, i1 false)
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ret void
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}
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declare void @llvm.lifetime.start.p5(i64 immarg, ptr addrspace(5) nocapture)
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declare void @llvm.lifetime.end.p5(i64 immarg, ptr addrspace(5) nocapture)
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declare void @llvm.memcpy.p0.p0.i32(ptr nocapture, ptr nocapture, i32, i1)
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