mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-16 11:30:51 +00:00
d3cf783ed1
Extend the target hook to take also the operand index into account when calculating the cost of the constant materialization. Related to <rdar://problem/16381500> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204435 91177308-0d34-0410-b5e6-96231b3b80d8
50 lines
1.7 KiB
LLVM
50 lines
1.7 KiB
LLVM
; RUN: llc < %s -march=x86-64 -relocation-model=static -mtriple=x86_64-unknown-linux-gnu -asm-verbose=0 | FileCheck %s
|
|
|
|
; The inner loop should require only one add (and no leas either).
|
|
; rdar://8100380
|
|
|
|
; CHECK: BB0_2:
|
|
; CHECK-NEXT: movb $0, flags(%rcx)
|
|
; CHECK-NEXT: addq %rax, %rcx
|
|
; CHECK-NEXT: cmpq $8192, %rcx
|
|
; CHECK-NEXT: jl
|
|
|
|
@flags = external global [8192 x i8], align 16 ; <[8192 x i8]*> [#uses=1]
|
|
|
|
define void @foo() nounwind {
|
|
entry:
|
|
br label %bb
|
|
|
|
bb: ; preds = %entry
|
|
br label %bb7
|
|
|
|
bb7: ; preds = %bb, %bb17
|
|
%tmp8 = phi i64 [ %tmp18, %bb17 ], [ 2, %bb ] ; <i64> [#uses=2]
|
|
br label %bb10
|
|
|
|
bb10: ; preds = %bb7
|
|
br label %bb11
|
|
|
|
bb11: ; preds = %bb10, %bb11
|
|
%tmp12 = phi i64 [ %tmp14, %bb11 ], [ 2, %bb10 ] ; <i64> [#uses=2]
|
|
%tmp13 = getelementptr inbounds [8192 x i8]* @flags, i64 0, i64 %tmp12 ; <i8*> [#uses=1]
|
|
store i8 0, i8* %tmp13, align 1
|
|
%tmp14 = add nsw i64 %tmp12, %tmp8 ; <i64> [#uses=2]
|
|
%tmp15 = icmp slt i64 %tmp14, 8192 ; <i1> [#uses=1]
|
|
br i1 %tmp15, label %bb11, label %bb16
|
|
|
|
bb16: ; preds = %bb11
|
|
br label %bb17
|
|
|
|
bb17: ; preds = %bb16, %bb7
|
|
%tmp18 = add nsw i64 %tmp8, 1 ; <i64> [#uses=2]
|
|
%tmp19 = icmp slt i64 %tmp18, 8192 ; <i1> [#uses=1]
|
|
br i1 %tmp19, label %bb7, label %bb20
|
|
|
|
bb20: ; preds = %bb17
|
|
br label %bb21
|
|
|
|
bb21: ; preds = %bb20, %entry
|
|
ret void
|
|
}
|