;Check 5.5 Parameter Passing --> Stage C --> C.5 statement, when NSAA is not ;equal to SP. ; ; Our purpose: make NSAA != SP, and only after start to use GPRs, then pass ; byval parameter and check that it goes to stack only. ; ;Co-Processor register candidates may be either in VFP or in stack, so after ;all VFP are allocated, stack is used. We can use stack without GPR allocation ;in that case, passing 9 f64 params, for example. ;First eight params goes to d0-d7, ninth one goes to the stack. ;Now, as 10th parameter, we pass i32, and it must go to R0. ; ;For more information, ;please, read 5.5 Parameter Passing, Stage C, stages C.2.cp, C.4 and C.5 ; ; ;RUN: llc -mtriple=thumbv7-linux-gnueabihf -float-abi=hard < %s | FileCheck %s %struct_t = type { i32, i32, i32, i32 } @static_val = constant %struct_t { i32 777, i32 888, i32 999, i32 1000 } declare void @fooUseStruct(%struct_t*) define void @foo2(double %p0, ; --> D0 double %p1, ; --> D1 double %p2, ; --> D2 double %p3, ; --> D3 double %p4, ; --> D4 double %p5, ; --> D5 double %p6, ; --> D6 double %p7, ; --> D7 double %p8, ; --> Stack i32 %p9, ; --> R0 %struct_t* byval(%struct_t) %p10) ; --> Stack+8 { entry: ;CHECK: push {r7, lr} ;CHECK-NOT: stm ;CHECK: add r0, sp, #16 ;CHECK: bl fooUseStruct call void @fooUseStruct(%struct_t* %p10) ret void } define void @doFoo2() { entry: ;CHECK-NOT: ldm tail call void @foo2(double 23.0, ; --> D0 double 23.1, ; --> D1 double 23.2, ; --> D2 double 23.3, ; --> D3 double 23.4, ; --> D4 double 23.5, ; --> D5 double 23.6, ; --> D6 double 23.7, ; --> D7 double 23.8, ; --> Stack i32 43, ; --> R0, not Stack+8 %struct_t* byval(%struct_t) @static_val) ; --> Stack+8, not R1 ret void }