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llvm-mirror/test/CodeGen/ARM/2012-10-18-PR14099-ByvalFrameAddress.ll
Stepan Dyatkovskiy ece4c2a9c1 ARM:
Removed extra stack frame object for fixed byval arguments,
VarArgsStyleRegisters invocation was reworked due to some improper usage in
past. PR14099 also demonstrates it.

llvm-svn: 166273
2012-10-19 08:23:06 +00:00

30 lines
686 B
LLVM

; RUN: llc < %s -mtriple=armv7-linux-gnueabi | FileCheck %s
%struct.s = type { [4 x i32] }
@v = constant %struct.s zeroinitializer;
declare void @f(%struct.s* %p);
; CHECK: t:
define void @t(i32 %a, %struct.s* byval %s) nounwind {
entry:
; Here we need to only check proper start address of restored %s argument.
; CHECK: sub sp, sp, #16
; CHECK: push {r11, lr}
; CHECK: add r0, sp, #12
; CHECK: stm r0, {r1, r2, r3}
; CHECK: add r0, sp, #12
; CHECK-NEXT: bl f
call void @f(%struct.s* %s)
ret void
}
; CHECK: caller:
define void @caller() {
; CHECK: ldm r0, {r1, r2, r3}
call void @t(i32 0, %struct.s* @v);
ret void
}