mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-15 04:30:12 +00:00
e5f163a3b9
because moden processos can store multiple values in parallel, and preparing the consecutive store requires some work. We only handle these cases: 1. Consecutive stores where the values and consecutive loads. For example: int a = p->a; int b = p->b; q->a = a; q->b = b; 2. Consecutive stores where the values are constants. Foe example: q->a = 4; q->b = 5; git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164910 91177308-0d34-0410-b5e6-96231b3b80d8
44 lines
1.6 KiB
LLVM
44 lines
1.6 KiB
LLVM
; RUN: llc < %s -march=x86 -mcpu=corei7 -relocation-model=pic | FileCheck %s -check-prefix=PIC
|
|
; RUN: llc < %s -march=x86 -mcpu=corei7 -relocation-model=static | FileCheck %s -check-prefix=STATIC
|
|
;
|
|
; Make sure the common loop invariant A is hoisted up to preheader,
|
|
; since too many registers are needed to subsume it into the addressing modes.
|
|
; It's safe to sink A in when it's not pic.
|
|
|
|
; PIC: align
|
|
; PIC: movlpd %xmm0, -4([[REG:%e[a-z]+]])
|
|
; PIC: addl $4, [[REG]]
|
|
; PIC: decl {{%e[[a-z]+}}
|
|
; PIC: jne
|
|
|
|
; STATIC: align
|
|
; STATIC: movlpd %xmm0, -4(%ecx)
|
|
; STATIC: addl $4, %ecx
|
|
; STATIC: decl %eax
|
|
; STATIC: jne
|
|
|
|
@A = global [16 x [16 x i32]] zeroinitializer, align 32 ; <[16 x [16 x i32]]*> [#uses=2]
|
|
|
|
define void @test(i32 %row, i32 %N.in) nounwind {
|
|
entry:
|
|
%N = bitcast i32 %N.in to i32 ; <i32> [#uses=1]
|
|
%tmp5 = icmp sgt i32 %N.in, 0 ; <i1> [#uses=1]
|
|
br i1 %tmp5, label %cond_true, label %return
|
|
|
|
cond_true: ; preds = %cond_true, %entry
|
|
%indvar = phi i32 [ 0, %entry ], [ %indvar.next, %cond_true ] ; <i32> [#uses=2]
|
|
%i.0.0 = bitcast i32 %indvar to i32 ; <i32> [#uses=2]
|
|
%tmp2 = add i32 %i.0.0, 1 ; <i32> [#uses=1]
|
|
%tmp = getelementptr [16 x [16 x i32]]* @A, i32 0, i32 %row, i32 %tmp2 ; <i32*> [#uses=1]
|
|
store i32 4, i32* %tmp
|
|
%tmp5.upgrd.1 = add i32 %i.0.0, 2 ; <i32> [#uses=1]
|
|
%tmp7 = getelementptr [16 x [16 x i32]]* @A, i32 0, i32 %row, i32 %tmp5.upgrd.1 ; <i32*> [#uses=1]
|
|
store i32 5, i32* %tmp7
|
|
%indvar.next = add i32 %indvar, 1 ; <i32> [#uses=2]
|
|
%exitcond = icmp eq i32 %indvar.next, %N ; <i1> [#uses=1]
|
|
br i1 %exitcond, label %return, label %cond_true
|
|
|
|
return: ; preds = %cond_true, %entry
|
|
ret void
|
|
}
|