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llvm-mirror/test/CodeGen/ARM/2013-05-02-AAPCS-ByVal-Structs-C4-C5-VFP.ll
Matthias Braun 7c07a54d9a ARMLoadStoreOptimizer: Create LDRD/STRD on thumb2
Re-apply r241926 with an additional check that r13 and r15 are not used
for LDRD/STRD. See http://llvm.org/PR24190. This also already includes
the fix from r241951.

Differential Revision: http://reviews.llvm.org/D10623

llvm-svn: 242742
2015-07-21 00:18:59 +00:00

49 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 }
@static_val = constant %st_t { i32 777, i32 888}
declare void @fooUseStruct(%st_t*)
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, ; --> R1, R2, NSAA=SP+8
i32 %p2, ; --> R3, NSAA=SP+8
i32 %p3) #0 { ; --> SP+4, NSAA=SP+12
entry:
;CHECK: sub sp, #12
;CHECK: push {r7, lr}
;CHECK: sub sp, #4
;CHECK: add r0, sp, #12
;CHECK: strd r1, r2, [sp, #12]
;CHECK: bl fooUseStruct
call void @fooUseStruct(%st_t* %p1)
ret void
}
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, i32 2)
ret void
}