1;Check AAPCS, 5.5 Parameters Passing, C4 and C5 rules. 2;Check case when NSAA != 0, and NCRN < R4, NCRN+ParamSize < R4 3;RUN: llc -mtriple=thumbv7-linux-gnueabihf -float-abi=hard < %s | FileCheck %s 4 5%st_t = type { i32, i32 } 6@static_val = constant %st_t { i32 777, i32 888} 7 8declare void @fooUseStruct(ptr) 9 10define void @foo(double %vfp0, ; --> D0, NSAA=SP 11 double %vfp1, ; --> D1, NSAA=SP 12 double %vfp2, ; --> D2, NSAA=SP 13 double %vfp3, ; --> D3, NSAA=SP 14 double %vfp4, ; --> D4, NSAA=SP 15 double %vfp5, ; --> D5, NSAA=SP 16 double %vfp6, ; --> D6, NSAA=SP 17 double %vfp7, ; --> D7, NSAA=SP 18 double %vfp8, ; --> SP, NSAA=SP+8 (!) 19 i32 %p0, ; --> R0, NSAA=SP+8 20 ptr byval(%st_t) %p1, ; --> R1, R2, NSAA=SP+8 21 i32 %p2, ; --> R3, NSAA=SP+8 22 i32 %p3) #0 { ; --> SP+4, NSAA=SP+12 23entry: 24 ;CHECK: sub sp, #12 25 ;CHECK: push {r7, lr} 26 ;CHECK: sub sp, #4 27 ;CHECK: add r0, sp, #12 28 ;CHECK: strd r1, r2, [sp, #12] 29 ;CHECK: bl fooUseStruct 30 call void @fooUseStruct(ptr %p1) 31 ret void 32} 33 34define void @doFoo() { 35entry: 36 call void @foo(double 23.0, 37 double 23.1, 38 double 23.2, 39 double 23.3, 40 double 23.4, 41 double 23.5, 42 double 23.6, 43 double 23.7, 44 double 23.8, 45 i32 0, ptr byval(%st_t) @static_val, i32 1, i32 2) 46 ret void 47} 48 49