Bill Schmidt 26160f4e64 When generating spill and reload code for vector registers on PowerPC,
the compiler makes use of GPR0.  However, there are two flavors of
GPR0 defined by the target:  the 32-bit GPR0 (R0) and the 64-bit GPR0
(X0).  The spill/reload code makes use of R0 regardless of whether we
are generating 32- or 64-bit code.

This patch corrects the problem in the obvious manner, using X0 and
ADDI8 for 64-bit and R0 and ADDI for 32-bit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165658 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-10 21:25:01 +00:00

20 lines
609 B
LLVM

; RUN: llc -O0 -mtriple=powerpc-unknown-linux-gnu -verify-machineinstrs < %s | FileCheck %s
; RUN: llc -O0 -mtriple=powerpc64-unknown-linux-gnu -verify-machineinstrs < %s | FileCheck %s
; This verifies that we generate correct spill/reload code for vector regs.
define void @addrtaken(i32 %i, <4 x float> %w) nounwind {
entry:
%i.addr = alloca i32, align 4
%w.addr = alloca <4 x float>, align 16
store i32 %i, i32* %i.addr, align 4
store <4 x float> %w, <4 x float>* %w.addr, align 16
call void @foo(i32* %i.addr)
ret void
}
; CHECK: stvx 2, 0, 0
; CHECK: lvx 2, 0, 0
declare void @foo(i32*)