2665febb54
Summary: Similar to X86, it should be safe to inline callees if their target-features are a subset of the caller. This change matches GCC's inlining behavior with respect to attributes [1]. [1] https://gcc.gnu.org/onlinedocs/gcc/AArch64-Function-Attributes.html#AArch64-Function-Attributes Reviewers: kristof.beyls, javed.absar, rengolin, t.p.northover Reviewed By: t.p.northover Subscribers: aemerson, eraman, llvm-commits Differential Revision: https://reviews.llvm.org/D34698 llvm-svn: 306478
41 lines
1.0 KiB
LLVM
41 lines
1.0 KiB
LLVM
; RUN: opt < %s -mtriple=aarch64-unknown-linux-gnu -S -inline | FileCheck %s
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; RUN: opt < %s -mtriple=aarch64-unknown-linux-gnu -S -passes='cgscc(inline)' | FileCheck %s
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; Check that we only inline when we have compatible target attributes.
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define i32 @foo() #0 {
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entry:
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%call = call i32 (...) @baz()
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ret i32 %call
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; CHECK-LABEL: foo
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; CHECK: call i32 (...) @baz()
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}
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declare i32 @baz(...) #0
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define i32 @bar() #1 {
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entry:
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%call = call i32 @foo()
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ret i32 %call
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; CHECK-LABEL: bar
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; CHECK: call i32 (...) @baz()
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}
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define i32 @qux() #0 {
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entry:
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%call = call i32 @bar()
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ret i32 %call
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; CHECK-LABEL: qux
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; CHECK: call i32 @bar()
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}
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define i32 @strict_align() #2 {
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entry:
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%call = call i32 @foo()
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ret i32 %call
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; CHECK-LABEL: strict_align
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; CHECK: call i32 (...) @baz()
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}
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attributes #0 = { "target-cpu"="generic" "target-features"="+crc,+neon" }
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attributes #1 = { "target-cpu"="generic" "target-features"="+crc,+neon,+crypto" }
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attributes #2 = { "target-cpu"="generic" "target-features"="+crc,+neon,+strict-align" }
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