38 lines
1.0 KiB
LLVM
38 lines
1.0 KiB
LLVM
; RUN: llc -mtriple=aarch64-none-linux-gnu -disable-fp-elim < %s | FileCheck %s
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@var = global i32 0
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declare void @bar()
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define void @test_w29_reserved() {
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; CHECK-LABEL: test_w29_reserved:
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; CHECK: add x29, sp, #{{[0-9]+}}
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%val1 = load volatile i32, i32* @var
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%val2 = load volatile i32, i32* @var
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%val3 = load volatile i32, i32* @var
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%val4 = load volatile i32, i32* @var
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%val5 = load volatile i32, i32* @var
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%val6 = load volatile i32, i32* @var
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%val7 = load volatile i32, i32* @var
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%val8 = load volatile i32, i32* @var
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%val9 = load volatile i32, i32* @var
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; CHECK-NOT: ldr w29,
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; Call to prevent fp-elim that occurs regardless in leaf functions.
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call void @bar()
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store volatile i32 %val1, i32* @var
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store volatile i32 %val2, i32* @var
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store volatile i32 %val3, i32* @var
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store volatile i32 %val4, i32* @var
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store volatile i32 %val5, i32* @var
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store volatile i32 %val6, i32* @var
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store volatile i32 %val7, i32* @var
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store volatile i32 %val8, i32* @var
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store volatile i32 %val9, i32* @var
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ret void
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; CHECK: ret
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}
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