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25 lines
680 B
25 lines
680 B
; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc64-unknown-gnu-linux | FileCheck %s
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define void @test_shadow_optimization() {
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entry:
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; Expect 12 bytes worth of nops here rather than 32: With the shadow optimization
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; in place, 20 bytes will be consumed by the frame teardown and return instr.
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; CHECK-LABEL: test_shadow_optimization:
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; CHECK: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NOT: nop
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; CHECK: addi 1, 1, 64
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; CHECK: ld [[REG1:[0-9]+]], 16(1)
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; CHECK: ld 31, -8(1)
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; CHECK: mtlr [[REG1]]
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; CHECK: blr
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tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 0, i32 32)
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ret void
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}
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declare void @llvm.experimental.stackmap(i64, i32, ...)
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