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Delete a test that is no longer relevant.

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According to PR2536, the old spiller had trouble with the IMPLICIT_DEF in this
code:

  %reg1028<def> = MOV16rm %reg0, 1, %reg0, <ga:g_5>, Mem:LD(2,2) [g_5 + 0]
  %reg1039<def> = IMPLICIT_DEF
  %reg1038<def> = INSERT_SUBREG %reg1039, %reg1028, 2
  %reg1025<def> = AND32ri %reg1038, 65534, %%EFLAGS<imp-def>

However, today we emit a zero-extending load instead:

  %vreg10<def> = MOVZX32rm16 %noreg, 1, %noreg, <ga:@g_5>, %noreg; %mem:LD2[@g_5] GR32:%vreg10
  %vreg0<def> = AND32ri %vreg10, 65534, %%EFLAGS<imp-def,dead>; %GR32:%vreg0,%vreg10

This makes the test pointless since it no longer creates the spiller hazard.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132210 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2011-05-27 20:02:42 +00:00
parent 4591193b8d
commit 6205769741
1 changed files with 0 additions and 52 deletions

52
test/CodeGen/X86/2008-07-11-SpillerBug.ll

@ -1,52 +0,0 @@
; RUN: llc < %s -march=x86 -relocation-model=static -disable-fp-elim -post-RA-scheduler=false -asm-verbose=0 | FileCheck %s
; PR2536
; CHECK: andl $65534, %
; CHECK-NEXT: movl %
; CHECK-NEXT: movzwl
@g_5 = external global i16 ; <i16*> [#uses=2]
@g_107 = external global i16 ; <i16*> [#uses=1]
@g_229 = external global i32 ; <i32*> [#uses=1]
@g_227 = external global i16 ; <i16*> [#uses=1]
define i32 @func_54(i32 %p_55, i16 zeroext %p_56) nounwind {
entry:
load i16* @g_5, align 2 ; <i16>:0 [#uses=1]
zext i16 %0 to i32 ; <i32>:1 [#uses=1]
%.mask = and i32 %1, 65534 ; <i32> [#uses=1]
icmp eq i32 %.mask, 0 ; <i1>:2 [#uses=1]
load i32* @g_229, align 4 ; <i32>:3 [#uses=1]
load i16* @g_227, align 2 ; <i16>:4 [#uses=1]
icmp eq i16 %4, 0 ; <i1>:5 [#uses=1]
load i16* @g_5, align 2 ; <i16>:6 [#uses=1]
br label %bb
bb: ; preds = %bb7.preheader, %entry
%indvar4 = phi i32 [ 0, %entry ], [ %indvar.next5, %bb7.preheader ] ; <i32> [#uses=1]
%p_56_addr.1.reg2mem.0 = phi i16 [ %p_56, %entry ], [ %p_56_addr.0, %bb7.preheader ] ; <i16> [#uses=2]
br i1 %2, label %bb7.preheader, label %bb5
bb5: ; preds = %bb
store i16 %6, i16* @g_107, align 2
br label %bb7.preheader
bb7.preheader: ; preds = %bb5, %bb
icmp eq i16 %p_56_addr.1.reg2mem.0, 0 ; <i1>:7 [#uses=1]
%.0 = select i1 %7, i32 1, i32 %3 ; <i32> [#uses=1]
urem i32 1, %.0 ; <i32>:8 [#uses=1]
icmp eq i32 %8, 0 ; <i1>:9 [#uses=1]
%.not = xor i1 %9, true ; <i1> [#uses=1]
%.not1 = xor i1 %5, true ; <i1> [#uses=1]
%brmerge = or i1 %.not, %.not1 ; <i1> [#uses=1]
%iftmp.6.0 = select i1 %brmerge, i32 3, i32 0 ; <i32> [#uses=1]
mul i32 %iftmp.6.0, %3 ; <i32>:10 [#uses=1]
icmp eq i32 %10, 0 ; <i1>:11 [#uses=1]
%p_56_addr.0 = select i1 %11, i16 %p_56_addr.1.reg2mem.0, i16 1 ; <i16> [#uses=1]
%indvar.next5 = add i32 %indvar4, 1 ; <i32> [#uses=2]
%exitcond6 = icmp eq i32 %indvar.next5, 17 ; <i1> [#uses=1]
br i1 %exitcond6, label %bb25, label %bb
bb25: ; preds = %bb7.preheader
ret i32 1
}