2018-02-17 22:26:32 +08:00
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; RUN: llc -mtriple aarch64-windows -verify-machineinstrs -filetype asm -o - %s | FileCheck %s -check-prefixes=CHECK,CHECK-OPT
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; RUN: llc -mtriple aarch64-windows -verify-machineinstrs -filetype asm -o - %s -O0 | FileCheck %s
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define void @func(i64 %a) {
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entry:
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%0 = alloca i8, i64 %a, align 16
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call void @func2(i8* nonnull %0)
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ret void
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}
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declare void @func2(i8*)
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; The -O0 version here ends up much less elegant, so just check the
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; details of the optimized form, but check that -O0 at least emits the
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; call to __chkstk.
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; CHECK: add [[REG1:x[0-9]+]], x0, #15
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; CHECK-OPT: lsr x15, [[REG1]], #4
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; CHECK: bl __chkstk
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; CHECK: mov [[REG2:x[0-9]+]], sp
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; CHECK-OPT: sub [[REG3:x[0-9]+]], [[REG2]], x15, lsl #4
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2018-03-09 17:45:37 +08:00
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; CHECK-OPT: mov sp, [[REG3]]
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2018-02-17 22:26:32 +08:00
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; CHECK: bl func2
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