mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-01 15:11:24 +00:00
aadaac228d
Summary: Fixes http://llvm.org/bugs/show_bug.cgi?id=20016 reproducible on new lea-5.ll case. Also use RSP/RBP for x32 lea to save 1 byte used for 0x67 prefix in ESP/EBP case. Test Plan: lea tests modified to include x32/nacl and new test added Reviewers: nadav, dschuff, t.p.northover Subscribers: llvm-commits, zinovy.nis Differential Revision: http://reviews.llvm.org/D4929 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216065 91177308-0d34-0410-b5e6-96231b3b80d8
38 lines
957 B
LLVM
38 lines
957 B
LLVM
; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s
|
|
; RUN: llc < %s -mtriple=x86_64-win32 | FileCheck %s
|
|
; RUN: llc < %s -mtriple=x86_64-linux-gnux32 | FileCheck %s
|
|
; RUN: llc < %s -mtriple=x86_64-nacl | FileCheck %s
|
|
|
|
define i32 @test1(i32 %x) nounwind {
|
|
%tmp1 = shl i32 %x, 3
|
|
%tmp2 = add i32 %tmp1, 7
|
|
ret i32 %tmp2
|
|
; CHECK-LABEL: test1:
|
|
; CHECK: leal 7(,%r[[A0:di|cx]],8), %eax
|
|
}
|
|
|
|
|
|
; ISel the add of -4 with a neg and use an lea for the rest of the
|
|
; arithemtic.
|
|
define i32 @test2(i32 %x_offs) nounwind readnone {
|
|
entry:
|
|
%t0 = icmp sgt i32 %x_offs, 4
|
|
br i1 %t0, label %bb.nph, label %bb2
|
|
|
|
bb.nph:
|
|
%tmp = add i32 %x_offs, -5
|
|
%tmp6 = lshr i32 %tmp, 2
|
|
%tmp7 = mul i32 %tmp6, -4
|
|
%tmp8 = add i32 %tmp7, %x_offs
|
|
%tmp9 = add i32 %tmp8, -4
|
|
ret i32 %tmp9
|
|
|
|
bb2:
|
|
ret i32 %x_offs
|
|
; CHECK-LABEL: test2:
|
|
; CHECK: leal -5(%r[[A0:..]]), %eax
|
|
; CHECK: andl $-4, %eax
|
|
; CHECK: negl %eax
|
|
; CHECK: leal -4(%r[[A0]],%rax), %eax
|
|
}
|