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|
; RUN: llc < %s -march=arm64 -mcpu=cyclone -enable-misched=false | FileCheck %s
target triple = "arm64-apple-ios7.0.0"
; rdar://13625505
; Here we have 9 fixed integer arguments the 9th argument in on stack, the
; varargs start right after at 8-byte alignment.
define void @fn9(i32 %a1, i32 %a2, i32 %a3, i32 %a4, i32 %a5, i32 %a6, i32 %a7, i32 %a8, i32 %a9, ...) nounwind noinline ssp {
; CHECK-LABEL: fn9:
; 9th fixed argument
; CHECK: ldr {{w[0-9]+}}, [sp, #64]
; CHECK: add [[ARGS:x[0-9]+]], sp, #72
; CHECK: add {{x[0-9]+}}, [[ARGS]], #8
; First vararg
; CHECK: ldr {{w[0-9]+}}, [sp, #72]
; CHECK: add {{x[0-9]+}}, {{x[0-9]+}}, #8
; Second vararg
; CHECK: ldr {{w[0-9]+}}, [{{x[0-9]+}}]
; CHECK: add {{x[0-9]+}}, {{x[0-9]+}}, #8
; Third vararg
; CHECK: ldr {{w[0-9]+}}, [{{x[0-9]+}}]
%1 = alloca i32, align 4
%2 = alloca i32, align 4
%3 = alloca i32, align 4
%4 = alloca i32, align 4
%5 = alloca i32, align 4
%6 = alloca i32, align 4
%7 = alloca i32, align 4
%8 = alloca i32, align 4
%9 = alloca i32, align 4
%args = alloca i8*, align 8
%a10 = alloca i32, align 4
%a11 = alloca i32, align 4
%a12 = alloca i32, align 4
store i32 %a1, i32* %1, align 4
store i32 %a2, i32* %2, align 4
store i32 %a3, i32* %3, align 4
store i32 %a4, i32* %4, align 4
store i32 %a5, i32* %5, align 4
store i32 %a6, i32* %6, align 4
store i32 %a7, i32* %7, align 4
store i32 %a8, i32* %8, align 4
store i32 %a9, i32* %9, align 4
%10 = bitcast i8** %args to i8*
call void @llvm.va_start(i8* %10)
%11 = va_arg i8** %args, i32
store i32 %11, i32* %a10, align 4
%12 = va_arg i8** %args, i32
store i32 %12, i32* %a11, align 4
%13 = va_arg i8** %args, i32
store i32 %13, i32* %a12, align 4
ret void
}
declare void @llvm.va_start(i8*) nounwind
define i32 @main() nounwind ssp {
; CHECK-LABEL: main:
; CHECK: stp {{x[0-9]+}}, {{x[0-9]+}}, [sp, #16]
; CHECK: str {{x[0-9]+}}, [sp, #8]
; CHECK: str {{w[0-9]+}}, [sp]
%a1 = alloca i32, align 4
%a2 = alloca i32, align 4
%a3 = alloca i32, align 4
%a4 = alloca i32, align 4
%a5 = alloca i32, align 4
%a6 = alloca i32, align 4
%a7 = alloca i32, align 4
%a8 = alloca i32, align 4
%a9 = alloca i32, align 4
%a10 = alloca i32, align 4
%a11 = alloca i32, align 4
%a12 = alloca i32, align 4
store i32 1, i32* %a1, align 4
store i32 2, i32* %a2, align 4
store i32 3, i32* %a3, align 4
store i32 4, i32* %a4, align 4
store i32 5, i32* %a5, align 4
store i32 6, i32* %a6, align 4
store i32 7, i32* %a7, align 4
store i32 8, i32* %a8, align 4
store i32 9, i32* %a9, align 4
store i32 10, i32* %a10, align 4
store i32 11, i32* %a11, align 4
store i32 12, i32* %a12, align 4
%1 = load i32, i32* %a1, align 4
%2 = load i32, i32* %a2, align 4
%3 = load i32, i32* %a3, align 4
%4 = load i32, i32* %a4, align 4
%5 = load i32, i32* %a5, align 4
%6 = load i32, i32* %a6, align 4
%7 = load i32, i32* %a7, align 4
%8 = load i32, i32* %a8, align 4
%9 = load i32, i32* %a9, align 4
%10 = load i32, i32* %a10, align 4
%11 = load i32, i32* %a11, align 4
%12 = load i32, i32* %a12, align 4
call void (i32, i32, i32, i32, i32, i32, i32, i32, i32, ...)* @fn9(i32 %1, i32 %2, i32 %3, i32 %4, i32 %5, i32 %6, i32 %7, i32 %8, i32 %9, i32 %10, i32 %11, i32 %12)
ret i32 0
}
;rdar://13668483
@.str = private unnamed_addr constant [4 x i8] c"fmt\00", align 1
define void @foo(i8* %fmt, ...) nounwind {
entry:
; CHECK-LABEL: foo:
; CHECK: orr {{x[0-9]+}}, {{x[0-9]+}}, #0x8
; CHECK: ldr {{w[0-9]+}}, [sp, #48]
; CHECK: add {{x[0-9]+}}, {{x[0-9]+}}, #15
; CHECK: and x[[ADDR:[0-9]+]], {{x[0-9]+}}, #0xfffffffffffffff0
; CHECK: ldr {{q[0-9]+}}, [x[[ADDR]]]
%fmt.addr = alloca i8*, align 8
%args = alloca i8*, align 8
%vc = alloca i32, align 4
%vv = alloca <4 x i32>, align 16
store i8* %fmt, i8** %fmt.addr, align 8
%args1 = bitcast i8** %args to i8*
call void @llvm.va_start(i8* %args1)
%0 = va_arg i8** %args, i32
store i32 %0, i32* %vc, align 4
%1 = va_arg i8** %args, <4 x i32>
store <4 x i32> %1, <4 x i32>* %vv, align 16
ret void
}
define void @bar(i32 %x, <4 x i32> %y) nounwind {
entry:
; CHECK-LABEL: bar:
; CHECK: str {{q[0-9]+}}, [sp, #16]
; CHECK: str {{x[0-9]+}}, [sp]
%x.addr = alloca i32, align 4
%y.addr = alloca <4 x i32>, align 16
store i32 %x, i32* %x.addr, align 4
store <4 x i32> %y, <4 x i32>* %y.addr, align 16
%0 = load i32, i32* %x.addr, align 4
%1 = load <4 x i32>, <4 x i32>* %y.addr, align 16
call void (i8*, ...)* @foo(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i32 0, i32 0), i32 %0, <4 x i32> %1)
ret void
}
; rdar://13668927
; When passing 16-byte aligned small structs as vararg, make sure the caller
; side is 16-byte aligned on stack.
%struct.s41 = type { i32, i16, i32, i16 }
define void @foo2(i8* %fmt, ...) nounwind {
entry:
; CHECK-LABEL: foo2:
; CHECK: orr {{x[0-9]+}}, {{x[0-9]+}}, #0x8
; CHECK: ldr {{w[0-9]+}}, [sp, #48]
; CHECK: add {{x[0-9]+}}, {{x[0-9]+}}, #15
; CHECK: and x[[ADDR:[0-9]+]], {{x[0-9]+}}, #0xfffffffffffffff0
; CHECK: ldr {{q[0-9]+}}, [x[[ADDR]]]
%fmt.addr = alloca i8*, align 8
%args = alloca i8*, align 8
%vc = alloca i32, align 4
%vs = alloca %struct.s41, align 16
store i8* %fmt, i8** %fmt.addr, align 8
%args1 = bitcast i8** %args to i8*
call void @llvm.va_start(i8* %args1)
%0 = va_arg i8** %args, i32
store i32 %0, i32* %vc, align 4
%ap.cur = load i8*, i8** %args
%1 = getelementptr i8, i8* %ap.cur, i32 15
%2 = ptrtoint i8* %1 to i64
%3 = and i64 %2, -16
%ap.align = inttoptr i64 %3 to i8*
%ap.next = getelementptr i8, i8* %ap.align, i32 16
store i8* %ap.next, i8** %args
%4 = bitcast i8* %ap.align to %struct.s41*
%5 = bitcast %struct.s41* %vs to i8*
%6 = bitcast %struct.s41* %4 to i8*
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %5, i8* %6, i64 16, i32 16, i1 false)
ret void
}
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind
define void @bar2(i32 %x, i128 %s41.coerce) nounwind {
entry:
; CHECK-LABEL: bar2:
; CHECK: stp {{x[0-9]+}}, {{x[0-9]+}}, [sp, #16]
; CHECK: str {{x[0-9]+}}, [sp]
%x.addr = alloca i32, align 4
%s41 = alloca %struct.s41, align 16
store i32 %x, i32* %x.addr, align 4
%0 = bitcast %struct.s41* %s41 to i128*
store i128 %s41.coerce, i128* %0, align 1
%1 = load i32, i32* %x.addr, align 4
%2 = bitcast %struct.s41* %s41 to i128*
%3 = load i128, i128* %2, align 1
call void (i8*, ...)* @foo2(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i32 0, i32 0), i32 %1, i128 %3)
ret void
}
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