91 lines
3.8 KiB
LLVM
91 lines
3.8 KiB
LLVM
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; RUN: opt -instnamer -O1 -mtriple=amdgcn-- -S -o - %s | FileCheck -check-prefixes=GCN,O1 %s
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; RUN: opt -instnamer -O2 -mtriple=amdgcn-- -S -o - %s | FileCheck -check-prefixes=GCN,O2 %s
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; RUN: opt -instnamer -O3 -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(i32 addrspace(1)* %p.coerce) #0 {
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entry:
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%p = alloca i32*, align 8, addrspace(5)
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%p.ascast = addrspacecast i32* addrspace(5)* %p to i32**
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%p.addr = alloca i32*, align 8, addrspace(5)
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%p.addr.ascast = addrspacecast i32* addrspace(5)* %p.addr to i32**
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%t = alloca [27 x i32], align 16, addrspace(5)
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%t.ascast = addrspacecast [27 x i32] addrspace(5)* %t to [27 x i32]*
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%sum = alloca i32, align 4, addrspace(5)
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%sum.ascast = addrspacecast i32 addrspace(5)* %sum to i32*
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%i = alloca i32, align 4, addrspace(5)
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%i.ascast = addrspacecast i32 addrspace(5)* %i to i32*
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%cleanup.dest.slot = alloca i32, align 4, addrspace(5)
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%0 = addrspacecast i32 addrspace(1)* %p.coerce to i32*
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store i32* %0, i32** %p.ascast, align 8
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%p1 = load i32*, i32** %p.ascast, align 8
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store i32* %p1, i32** %p.addr.ascast, align 8
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%1 = bitcast [27 x i32] addrspace(5)* %t to i8 addrspace(5)*
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call void @llvm.lifetime.start.p5i8(i64 48, i8 addrspace(5)* %1)
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%arraydecay = getelementptr inbounds [27 x i32], [27 x i32]* %t.ascast, i64 0, i64 0
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%2 = load i32*, i32** %p.addr.ascast, align 8
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call void @copy(i32* %arraydecay, i32* %2, i32 27)
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%3 = bitcast i32 addrspace(5)* %sum to i8 addrspace(5)*
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call void @llvm.lifetime.start.p5i8(i64 4, i8 addrspace(5)* %3)
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store i32 0, i32* %sum.ascast, align 4
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%4 = bitcast i32 addrspace(5)* %i to i8 addrspace(5)*
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call void @llvm.lifetime.start.p5i8(i64 4, i8 addrspace(5)* %4)
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store i32 0, i32* %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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%5 = load i32, i32* %i.ascast, align 4
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%cmp = icmp slt i32 %5, 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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%6 = bitcast i32 addrspace(5)* %i to i8 addrspace(5)*
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call void @llvm.lifetime.end.p5i8(i64 4, i8 addrspace(5)* %6)
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br label %for.end
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for.body: ; preds = %for.cond
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%7 = load i32, i32* %i.ascast, align 4
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%idxprom = sext i32 %7 to i64
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%arrayidx = getelementptr inbounds [27 x i32], [27 x i32]* %t.ascast, i64 0, i64 %idxprom
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%8 = load i32, i32* %arrayidx, align 4
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%9 = load i32, i32* %sum.ascast, align 4
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%add = add nsw i32 %9, %8
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store i32 %add, i32* %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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%10 = load i32, i32* %i.ascast, align 4
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%inc = add nsw i32 %10, 1
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store i32 %inc, i32* %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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%11 = load i32, i32* %sum.ascast, align 4
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%12 = load i32*, i32** %p.addr.ascast, align 8
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store i32 %11, i32* %12, align 4
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%13 = bitcast i32 addrspace(5)* %sum to i8 addrspace(5)*
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call void @llvm.lifetime.end.p5i8(i64 4, i8 addrspace(5)* %13)
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%14 = bitcast [27 x i32] addrspace(5)* %t to i8 addrspace(5)*
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call void @llvm.lifetime.end.p5i8(i64 48, i8 addrspace(5)* %14)
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ret void
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}
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define internal void @copy(i32* %d, i32* %s, i32 %N) {
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entry:
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%d8 = bitcast i32* %d to i8*
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%s8 = bitcast i32* %s to i8*
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%N8 = mul i32 %N, 4
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tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* %d8, i8* %s8, i32 %N8, i1 false)
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ret void
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}
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declare void @llvm.lifetime.start.p5i8(i64 immarg, i8 addrspace(5)* nocapture)
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declare void @llvm.lifetime.end.p5i8(i64 immarg, i8 addrspace(5)* nocapture)
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declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i1)
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