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in functions which call __builtin_unwind_init() __builtin_unwind_init() is an undocumented gcc intrinsic which has this effect, and is used in libgcc_eh. Goes part of the way toward fixing PR8541. llvm-svn: 183984
19 lines
656 B
LLVM
19 lines
656 B
LLVM
; RUN: llc -mtriple=armv7-unknown-linux-gnueabi < %s | FileCheck %s
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; Check that all callee-saved registers are saved and restored in functions
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; that call __builtin_unwind_init(). This is its undocumented behavior in gcc,
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; and it is used in compiling libgcc_eh.
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; See also PR8541
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declare void @llvm.eh.unwind.init()
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define void @calls_unwind_init() {
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call void @llvm.eh.unwind.init()
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ret void
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}
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; CHECK: calls_unwind_init:
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; CHECK: push {r4, r5, r6, r7, r8, r9, r10, r11, lr}
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; CHECK: vpush {d8, d9, d10, d11, d12, d13, d14, d15}
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; CHECK: vpop {d8, d9, d10, d11, d12, d13, d14, d15}
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; CHECK: pop {r4, r5, r6, r7, r8, r9, r10, r11, pc}
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