3606876b67
Correct CSE in SelectionDAG can make DAG combining more effective and reduces the size of the DAG and thus should improve compile time.
24 lines
742 B
LLVM
24 lines
742 B
LLVM
; RUN: llc < %s -O0 -debug-only=isel -o /dev/null 2>&1 | FileCheck %s
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; REQUIRES: asserts
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target triple = "nvptx64-nvidia-cuda"
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;; Selection DAG CSE is hard to test since we run CSE/GVN on the IR before and
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;; after selection DAG ISel so most cases will be handled by one of these.
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define void @foo(ptr %p) {
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; CHECK-LABEL: Initial selection DAG
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;
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; CHECK: [[ASC:t[0-9]+]]{{.*}} = addrspacecast
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; CHECK: store{{.*}} [[ASC]]
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; CHECK: store{{.*}} [[ASC]]
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;
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; CHECK-LABEL: Optimized lowered selection
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;
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%a1 = addrspacecast ptr %p to ptr addrspace(5)
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%a2 = addrspacecast ptr %p to ptr addrspace(5)
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store i32 0, ptr addrspace(5) %a1
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store i32 0, ptr addrspace(5) %a2
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ret void
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}
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