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llvm-mirror/test/CodeGen/CellSPU/loads.ll
Kalle Raiskila 2001fd19b9 Mark the SPU 'lr' instruction to never have side effects.
This allows the fast regiser allocator to remove redundant 
register moves.
Update a set of tests that depend on the register allocator
to be linear scan. 

llvm-svn: 106420
2010-06-21 15:08:16 +00:00

41 lines
1.1 KiB
LLVM

; RUN: llc < %s -march=cellspu | FileCheck %s
; ModuleID = 'loads.bc'
target datalayout = "E-p:32:32:128-f64:64:128-f32:32:128-i64:32:128-i32:32:128-i16:16:128-i8:8:128-i1:8:128-a0:0:128-v128:128:128-s0:128:128"
target triple = "spu"
define <4 x float> @load_v4f32_1(<4 x float>* %a) nounwind readonly {
entry:
%tmp1 = load <4 x float>* %a
ret <4 x float> %tmp1
; CHECK: lqd $3, 0($3)
}
define <4 x float> @load_v4f32_2(<4 x float>* %a) nounwind readonly {
entry:
%arrayidx = getelementptr <4 x float>* %a, i32 1
%tmp1 = load <4 x float>* %arrayidx
ret <4 x float> %tmp1
; CHECK: lqd $3, 16($3)
}
declare <4 x i32>* @getv4f32ptr()
define <4 x i32> @func() {
;CHECK: brasl
; we need to have some instruction to move the result to safety.
; which instruction (lr, stqd...) depends on the regalloc
;CHECK: {{.*}}
;CHECK: brasl
%rv1 = call <4 x i32>* @getv4f32ptr()
%rv2 = call <4 x i32>* @getv4f32ptr()
%rv3 = load <4 x i32>* %rv1
ret <4 x i32> %rv3
}
define <4 x float> @load_undef(){
;CHECK lqd $3, 0($3)
%val = load <4 x float>* undef
ret <4 x float> %val
}