mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-15 04:30:12 +00:00
46abfcf418
Now even the small structures could be passed within byval (small enough
to be stored in GPRs).
In regression tests next function prototypes are checked:
PR15293:
%artz = type { i32 }
define void @foo(%artz* byval %s)
define void @foo2(%artz* byval %s, i32 %p, %artz* byval %s2)
foo: "s" stored in R0
foo2: "s" stored in R0, "s2" stored in R2.
Next AAPCS rules are checked:
5.5 Parameters Passing, C.4 and C.5,
"ParamSize" is parameter size in 32bit words:
-- NSAA != 0, NCRN < R4 and NCRN+ParamSize > R4.
Parameter should be sent to the stack; NCRN := R4.
-- NSAA != 0, and NCRN < R4, NCRN+ParamSize < R4.
Parameter stored in GPRs; NCRN += ParamSize.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181148 91177308-0d34-0410-b5e6-96231b3b80d8
46 lines
1.5 KiB
LLVM
46 lines
1.5 KiB
LLVM
;Check AAPCS, 5.5 Parameters Passing, C4 and C5 rules.
|
|
;Check case when NSAA != 0, and NCRN < R4, NCRN+ParamSize > R4
|
|
;RUN: llc -mtriple=thumbv7-linux-gnueabihf -float-abi=hard < %s | FileCheck %s
|
|
|
|
%st_t = type { i32, i32, i32, i32 }
|
|
@static_val = constant %st_t { i32 777, i32 888, i32 787, i32 878}
|
|
|
|
define void @foo(double %vfp0, ; --> D0, NSAA=SP
|
|
double %vfp1, ; --> D1, NSAA=SP
|
|
double %vfp2, ; --> D2, NSAA=SP
|
|
double %vfp3, ; --> D3, NSAA=SP
|
|
double %vfp4, ; --> D4, NSAA=SP
|
|
double %vfp5, ; --> D5, NSAA=SP
|
|
double %vfp6, ; --> D6, NSAA=SP
|
|
double %vfp7, ; --> D7, NSAA=SP
|
|
double %vfp8, ; --> SP, NSAA=SP+8 (!)
|
|
i32 %p0, ; --> R0, NSAA=SP+8
|
|
%st_t* byval %p1, ; --> SP+8, 4 words NSAA=SP+24
|
|
i32 %p2) #0 { ; --> SP+24, NSAA=SP+24
|
|
|
|
entry:
|
|
;CHECK: push.w {r11, lr}
|
|
;CHECK: ldr r0, [sp, #32]
|
|
;CHECK: bl fooUseI32
|
|
call void @fooUseI32(i32 %p2)
|
|
ret void
|
|
}
|
|
|
|
declare void @fooUseI32(i32)
|
|
|
|
define void @doFoo() {
|
|
entry:
|
|
call void @foo(double 23.0,
|
|
double 23.1,
|
|
double 23.2,
|
|
double 23.3,
|
|
double 23.4,
|
|
double 23.5,
|
|
double 23.6,
|
|
double 23.7,
|
|
double 23.8,
|
|
i32 0, %st_t* byval @static_val, i32 1)
|
|
ret void
|
|
}
|
|
|