22d91a7c84
Preserving frame pointers -- even inside leaf functions -- makes it easy to capture the stack of a running program, without requiring any side tables or metadata (like `.eh_frame` sections). Many sampling profilers and similar tools walk frame pointers to capture stacks. Enabling this option will play nice with those tools.
21 lines
358 B
Plaintext
21 lines
358 B
Plaintext
;; Test compilation of leaf functions without preserving frame pointers.
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test compile precise-output
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set unwind_info=false
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set preserve_frame_pointers=false
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target x86_64
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function %leaf(i64) -> i64 {
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block0(v0: i64):
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return v0
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}
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; pushq %rbp
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; movq %rsp, %rbp
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; block0:
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; movq %rdi, %rax
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; movq %rbp, %rsp
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; popq %rbp
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; ret
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