derek.holloway
7502bf64a4
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48 lines
1.9 KiB
LLVM
48 lines
1.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
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; RUN: opt < %s -mtriple=aarch64-unknown-linux-gnu -mattr=+sme -S -passes=inline -inlinedefault-threshold=1 | FileCheck %s
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; This test sets the inline-threshold to 1 such that by default the call to @streaming_callee is not inlined.
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; However, if the call to @streaming_callee requires a streaming-mode change, it should always inline the call because the streaming-mode change is more expensive.
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target triple = "aarch64"
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declare void @streaming_compatible_f() #0 "aarch64_pstate_sm_compatible"
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; Function @non_streaming_callee doesn't contain any operations that may use ZA
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; state and therefore can be legally inlined into a normal function.
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define void @non_streaming_callee() #0 {
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; CHECK-LABEL: define void @non_streaming_callee
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; CHECK-SAME: () #[[ATTR1:[0-9]+]] {
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; CHECK-NEXT: call void @streaming_compatible_f()
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; CHECK-NEXT: call void @streaming_compatible_f()
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; CHECK-NEXT: ret void
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;
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call void @streaming_compatible_f()
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call void @streaming_compatible_f()
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ret void
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}
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; Inline call to @non_streaming_callee to remove a streaming mode change.
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define void @streaming_caller_inline() #0 "aarch64_pstate_sm_enabled" {
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; CHECK-LABEL: define void @streaming_caller_inline
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; CHECK-SAME: () #[[ATTR2:[0-9]+]] {
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; CHECK-NEXT: call void @streaming_compatible_f()
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; CHECK-NEXT: call void @streaming_compatible_f()
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; CHECK-NEXT: ret void
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;
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call void @non_streaming_callee()
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ret void
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}
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; Don't inline call to @non_streaming_callee when the inline-threshold is set to 1, because it does not eliminate a streaming-mode change.
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define void @non_streaming_caller_dont_inline() #0 {
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; CHECK-LABEL: define void @non_streaming_caller_dont_inline
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; CHECK-SAME: () #[[ATTR1]] {
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; CHECK-NEXT: call void @non_streaming_callee()
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; CHECK-NEXT: ret void
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;
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call void @non_streaming_callee()
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ret void
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}
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attributes #0 = { "target-features"="+sve,+sme" }
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