| ; RUN: llc -march=x86 %s -o - |
| ; RUN: llc -march=x86-64 %s -o - |
| |
| ; PR6497 |
| |
| ; Chain and flag folding issues. |
| define i32 @test1() nounwind ssp { |
| entry: |
| %tmp5.i = load volatile i32* undef ; <i32> [#uses=1] |
| %conv.i = zext i32 %tmp5.i to i64 ; <i64> [#uses=1] |
| %tmp12.i = load volatile i32* undef ; <i32> [#uses=1] |
| %conv13.i = zext i32 %tmp12.i to i64 ; <i64> [#uses=1] |
| %shl.i = shl i64 %conv13.i, 32 ; <i64> [#uses=1] |
| %or.i = or i64 %shl.i, %conv.i ; <i64> [#uses=1] |
| %add16.i = add i64 %or.i, 256 ; <i64> [#uses=1] |
| %shr.i = lshr i64 %add16.i, 8 ; <i64> [#uses=1] |
| %conv19.i = trunc i64 %shr.i to i32 ; <i32> [#uses=1] |
| store volatile i32 %conv19.i, i32* undef |
| ret i32 undef |
| } |
| |
| ; PR6533 |
| define void @test2(i1 %x, i32 %y) nounwind { |
| %land.ext = zext i1 %x to i32 ; <i32> [#uses=1] |
| %and = and i32 %y, 1 ; <i32> [#uses=1] |
| %xor = xor i32 %and, %land.ext ; <i32> [#uses=1] |
| %cmp = icmp eq i32 %xor, 1 ; <i1> [#uses=1] |
| br i1 %cmp, label %if.end, label %if.then |
| |
| if.then: ; preds = %land.end |
| ret void |
| |
| if.end: ; preds = %land.end |
| ret void |
| } |
| |
| ; PR6577 |
| %pair = type { i64, double } |
| |
| define void @test3() { |
| dependentGraph243.exit: |
| %subject19 = load %pair* undef ; <%1> [#uses=1] |
| %0 = extractvalue %pair %subject19, 1 ; <double> [#uses=2] |
| %1 = select i1 undef, double %0, double undef ; <double> [#uses=1] |
| %2 = select i1 undef, double %1, double %0 ; <double> [#uses=1] |
| %3 = insertvalue %pair undef, double %2, 1 ; <%1> [#uses=1] |
| store %pair %3, %pair* undef |
| ret void |
| } |
| |
| ; PR6605 |
| define i64 @test4(i8* %P) nounwind ssp { |
| entry: |
| %tmp1 = load i8* %P ; <i8> [#uses=3] |
| %tobool = icmp eq i8 %tmp1, 0 ; <i1> [#uses=1] |
| %tmp58 = sext i1 %tobool to i8 ; <i8> [#uses=1] |
| %mul.i = and i8 %tmp58, %tmp1 ; <i8> [#uses=1] |
| %conv6 = zext i8 %mul.i to i32 ; <i32> [#uses=1] |
| %cmp = icmp ne i8 %tmp1, 1 ; <i1> [#uses=1] |
| %conv11 = zext i1 %cmp to i32 ; <i32> [#uses=1] |
| %call12 = tail call i32 @safe(i32 %conv11) nounwind ; <i32> [#uses=1] |
| %and = and i32 %conv6, %call12 ; <i32> [#uses=1] |
| %tobool13 = icmp eq i32 %and, 0 ; <i1> [#uses=1] |
| br i1 %tobool13, label %if.else, label %return |
| |
| if.else: ; preds = %entry |
| br label %return |
| |
| return: ; preds = %if.else, %entry |
| ret i64 undef |
| } |
| |
| declare i32 @safe(i32) |
| |
| ; PR6607 |
| define fastcc void @test5(i32 %FUNC) nounwind { |
| foo: |
| %0 = load i8* undef, align 1 ; <i8> [#uses=3] |
| %1 = sext i8 %0 to i32 ; <i32> [#uses=2] |
| %2 = zext i8 %0 to i32 ; <i32> [#uses=1] |
| %tmp1.i5037 = urem i32 %2, 10 ; <i32> [#uses=1] |
| %tmp.i5038 = icmp ugt i32 %tmp1.i5037, 15 ; <i1> [#uses=1] |
| %3 = zext i1 %tmp.i5038 to i8 ; <i8> [#uses=1] |
| %4 = icmp slt i8 %0, %3 ; <i1> [#uses=1] |
| %5 = add nsw i32 %1, 256 ; <i32> [#uses=1] |
| %storemerge.i.i57 = select i1 %4, i32 %5, i32 %1 ; <i32> [#uses=1] |
| %6 = shl i32 %storemerge.i.i57, 16 ; <i32> [#uses=1] |
| %7 = sdiv i32 %6, -256 ; <i32> [#uses=1] |
| %8 = trunc i32 %7 to i8 ; <i8> [#uses=1] |
| store i8 %8, i8* undef, align 1 |
| ret void |
| } |
| |
| |
| ; Crash commoning identical asms. |
| ; PR6803 |
| define void @test6(i1 %C) nounwind optsize ssp { |
| entry: |
| br i1 %C, label %do.body55, label %do.body92 |
| |
| do.body55: ; preds = %if.else36 |
| call void asm sideeffect "foo", "~{dirflag},~{fpsr},~{flags}"() nounwind, !srcloc !0 |
| ret void |
| |
| do.body92: ; preds = %if.then66 |
| call void asm sideeffect "foo", "~{dirflag},~{fpsr},~{flags}"() nounwind, !srcloc !1 |
| ret void |
| } |
| |
| !0 = metadata !{i32 633550} |
| !1 = metadata !{i32 634261} |
| |
| |
| ; Crash during XOR optimization. |
| ; <rdar://problem/7869290> |
| |
| define void @test7() nounwind ssp { |
| entry: |
| br i1 undef, label %bb14, label %bb67 |
| |
| bb14: |
| %tmp0 = trunc i16 undef to i1 |
| %tmp1 = load i8* undef, align 8 |
| %tmp2 = shl i8 %tmp1, 4 |
| %tmp3 = lshr i8 %tmp2, 7 |
| %tmp4 = trunc i8 %tmp3 to i1 |
| %tmp5 = icmp ne i1 %tmp0, %tmp4 |
| br i1 %tmp5, label %bb14, label %bb67 |
| |
| bb67: |
| ret void |
| } |
| |
| ; Crash when trying to copy AH to AL. |
| ; PR7540 |
| define void @copy8bitregs() nounwind { |
| entry: |
| %div.i = sdiv i32 115200, 0 |
| %shr8.i = lshr i32 %div.i, 8 |
| %conv4.i = trunc i32 %shr8.i to i8 |
| call void asm sideeffect "outb $0, ${1:w}", "{ax},N{dx},~{dirflag},~{fpsr},~{flags}"(i8 %conv4.i, i32 1017) nounwind |
| unreachable |
| } |
| |
| ; Crash trying to form conditional increment with fp value. |
| ; PR8981 |
| define i32 @test9(double %X) ssp align 2 { |
| entry: |
| %0 = fcmp one double %X, 0.000000e+00 |
| %cond = select i1 %0, i32 1, i32 2 |
| ret i32 %cond |
| } |
| |
| |
| ; PR8514 - Crash in match address do to "heroics" turning and-of-shift into |
| ; shift of and. |
| %struct.S0 = type { i8, [2 x i8], i8 } |
| |
| define void @func_59(i32 %p_63) noreturn nounwind { |
| entry: |
| br label %for.body |
| |
| for.body: ; preds = %for.inc44, %entry |
| %p_63.addr.1 = phi i32 [ %p_63, %entry ], [ 0, %for.inc44 ] |
| %l_74.0 = phi i32 [ 0, %entry ], [ %add46, %for.inc44 ] |
| br i1 undef, label %for.inc44, label %bb.nph81 |
| |
| bb.nph81: ; preds = %for.body |
| %tmp98 = add i32 %p_63.addr.1, 0 |
| br label %for.body22 |
| |
| for.body22: ; preds = %for.body22, %bb.nph81 |
| %l_75.077 = phi i64 [ %ins, %for.body22 ], [ undef, %bb.nph81 ] |
| %tmp110 = trunc i64 %l_75.077 to i32 |
| %tmp111 = and i32 %tmp110, 65535 |
| %arrayidx32.0 = getelementptr [9 x [5 x [2 x %struct.S0]]]* undef, i32 0, i32 %l_74.0, i32 %tmp98, i32 %tmp111, i32 0 |
| store i8 1, i8* %arrayidx32.0, align 4 |
| %tmp106 = shl i32 %tmp110, 2 |
| %tmp107 = and i32 %tmp106, 262140 |
| %scevgep99.sum114 = or i32 %tmp107, 1 |
| %arrayidx32.1.1 = getelementptr [9 x [5 x [2 x %struct.S0]]]* undef, i32 0, i32 %l_74.0, i32 %tmp98, i32 0, i32 1, i32 %scevgep99.sum114 |
| store i8 0, i8* %arrayidx32.1.1, align 1 |
| %ins = or i64 undef, undef |
| br label %for.body22 |
| |
| for.inc44: ; preds = %for.body |
| %add46 = add i32 %l_74.0, 1 |
| br label %for.body |
| } |
| |
| ; PR9028 |
| define void @func_60(i64 %A) nounwind { |
| entry: |
| %0 = zext i64 %A to i160 |
| %1 = shl i160 %0, 64 |
| %2 = zext i160 %1 to i576 |
| %3 = zext i96 undef to i576 |
| %4 = or i576 %3, %2 |
| store i576 %4, i576* undef, align 8 |
| ret void |
| } |
| |
| ; <rdar://problem/9187792> |
| define fastcc void @func_61() nounwind sspreq { |
| entry: |
| %t1 = tail call i64 @llvm.objectsize.i64(i8* undef, i1 false) |
| %t2 = icmp eq i64 %t1, -1 |
| br i1 %t2, label %bb2, label %bb1 |
| |
| bb1: |
| ret void |
| |
| bb2: |
| ret void |
| } |
| |
| declare i64 @llvm.objectsize.i64(i8*, i1) nounwind readnone |
| |
| ; PR10277 |
| ; This test has dead code elimination caused by remat during spilling. |
| ; DCE causes a live interval to break into connected components. |
| ; One of the components is spilled. |
| |
| %t2 = type { i8 } |
| %t9 = type { %t10 } |
| %t10 = type { %t11 } |
| %t11 = type { %t12 } |
| %t12 = type { %t13*, %t13*, %t13* } |
| %t13 = type { %t14*, %t15, %t15 } |
| %t14 = type opaque |
| %t15 = type { i8, i32, i32 } |
| %t16 = type { %t17, i8* } |
| %t17 = type { %t18 } |
| %t18 = type { %t19 } |
| %t19 = type { %t20*, %t20*, %t20* } |
| %t20 = type { i32, i32 } |
| %t21 = type { %t13* } |
| |
| define void @_ZNK4llvm17MipsFrameLowering12emitPrologueERNS_15MachineFunctionE() ssp align 2 { |
| bb: |
| %tmp = load %t9** undef, align 4, !tbaa !0 |
| %tmp2 = getelementptr inbounds %t9* %tmp, i32 0, i32 0 |
| %tmp3 = getelementptr inbounds %t9* %tmp, i32 0, i32 0, i32 0, i32 0, i32 1 |
| br label %bb4 |
| |
| bb4: ; preds = %bb37, %bb |
| %tmp5 = phi i96 [ undef, %bb ], [ %tmp38, %bb37 ] |
| %tmp6 = phi i96 [ undef, %bb ], [ %tmp39, %bb37 ] |
| br i1 undef, label %bb34, label %bb7 |
| |
| bb7: ; preds = %bb4 |
| %tmp8 = load i32* undef, align 4 |
| %tmp9 = and i96 %tmp6, 4294967040 |
| %tmp10 = zext i32 %tmp8 to i96 |
| %tmp11 = shl nuw nsw i96 %tmp10, 32 |
| %tmp12 = or i96 %tmp9, %tmp11 |
| %tmp13 = or i96 %tmp12, 1 |
| %tmp14 = load i32* undef, align 4 |
| %tmp15 = and i96 %tmp5, 4294967040 |
| %tmp16 = zext i32 %tmp14 to i96 |
| %tmp17 = shl nuw nsw i96 %tmp16, 32 |
| %tmp18 = or i96 %tmp15, %tmp17 |
| %tmp19 = or i96 %tmp18, 1 |
| %tmp20 = load i8* undef, align 1 |
| %tmp21 = and i8 %tmp20, 1 |
| %tmp22 = icmp ne i8 %tmp21, 0 |
| %tmp23 = select i1 %tmp22, i96 %tmp19, i96 %tmp13 |
| %tmp24 = select i1 %tmp22, i96 %tmp13, i96 %tmp19 |
| store i96 %tmp24, i96* undef, align 4 |
| %tmp25 = load %t13** %tmp3, align 4 |
| %tmp26 = icmp eq %t13* %tmp25, undef |
| br i1 %tmp26, label %bb28, label %bb27 |
| |
| bb27: ; preds = %bb7 |
| br label %bb29 |
| |
| bb28: ; preds = %bb7 |
| call void @_ZNSt6vectorIN4llvm11MachineMoveESaIS1_EE13_M_insert_auxEN9__gnu_cxx17__normal_iteratorIPS1_S3_EERKS1_(%t10* %tmp2, %t21* byval align 4 undef, %t13* undef) |
| br label %bb29 |
| |
| bb29: ; preds = %bb28, %bb27 |
| store i96 %tmp23, i96* undef, align 4 |
| %tmp30 = load %t13** %tmp3, align 4 |
| br i1 false, label %bb33, label %bb31 |
| |
| bb31: ; preds = %bb29 |
| %tmp32 = getelementptr inbounds %t13* %tmp30, i32 1 |
| store %t13* %tmp32, %t13** %tmp3, align 4 |
| br label %bb37 |
| |
| bb33: ; preds = %bb29 |
| unreachable |
| |
| bb34: ; preds = %bb4 |
| br i1 undef, label %bb36, label %bb35 |
| |
| bb35: ; preds = %bb34 |
| store %t13* null, %t13** %tmp3, align 4 |
| br label %bb37 |
| |
| bb36: ; preds = %bb34 |
| call void @_ZNSt6vectorIN4llvm11MachineMoveESaIS1_EE13_M_insert_auxEN9__gnu_cxx17__normal_iteratorIPS1_S3_EERKS1_(%t10* %tmp2, %t21* byval align 4 undef, %t13* undef) |
| br label %bb37 |
| |
| bb37: ; preds = %bb36, %bb35, %bb31 |
| %tmp38 = phi i96 [ %tmp23, %bb31 ], [ %tmp5, %bb35 ], [ %tmp5, %bb36 ] |
| %tmp39 = phi i96 [ %tmp24, %bb31 ], [ %tmp6, %bb35 ], [ %tmp6, %bb36 ] |
| %tmp40 = add i32 undef, 1 |
| br label %bb4 |
| } |
| |
| declare %t14* @_ZN4llvm9MCContext16CreateTempSymbolEv(%t2*) |
| |
| declare void @_ZNSt6vectorIN4llvm11MachineMoveESaIS1_EE13_M_insert_auxEN9__gnu_cxx17__normal_iteratorIPS1_S3_EERKS1_(%t10*, %t21* byval align 4, %t13*) |
| |
| declare void @llvm.lifetime.start(i64, i8* nocapture) nounwind |
| |
| declare void @llvm.lifetime.end(i64, i8* nocapture) nounwind |
| |
| ; PR10463 |
| ; Spilling a virtual register with <undef> uses. |
| define void @autogen_239_1000() { |
| BB: |
| %Shuff = shufflevector <8 x double> undef, <8 x double> undef, <8 x i32> <i32 0, i32 2, i32 4, i32 6, i32 8, i32 10, i32 undef, i32 undef> |
| br label %CF |
| |
| CF: |
| %B16 = frem <8 x double> zeroinitializer, %Shuff |
| %E19 = extractelement <8 x double> %Shuff, i32 5 |
| br i1 undef, label %CF, label %CF75 |
| |
| CF75: |
| br i1 undef, label %CF75, label %CF76 |
| |
| CF76: |
| store double %E19, double* undef |
| br i1 undef, label %CF76, label %CF77 |
| |
| CF77: |
| %B55 = fmul <8 x double> %B16, undef |
| br label %CF77 |
| } |
| |
| ; PR10527 |
| define void @pr10527() nounwind uwtable { |
| entry: |
| br label %"4" |
| |
| "3": |
| %0 = load <2 x i32>* null, align 8 |
| %1 = xor <2 x i32> zeroinitializer, %0 |
| %2 = and <2 x i32> %1, %6 |
| %3 = or <2 x i32> undef, %2 |
| %4 = and <2 x i32> %3, undef |
| store <2 x i32> %4, <2 x i32>* undef |
| %5 = load <2 x i32>* undef, align 1 |
| br label %"4" |
| |
| "4": |
| %6 = phi <2 x i32> [ %5, %"3" ], [ zeroinitializer, %entry ] |
| %7 = icmp ult i32 undef, undef |
| br i1 %7, label %"3", label %"5" |
| |
| "5": |
| ret void |
| } |
| |
| ; PR11078 |
| ; |
| ; A virtual register used by the "foo" inline asm memory operand gets |
| ; constrained to GR32_ABCD during coalescing. This makes the inline asm |
| ; impossible to allocate without splitting the live range and reinflating the |
| ; register class around the inline asm. |
| ; |
| ; The constraint originally comes from the TEST8ri optimization of (icmp (and %t0, 1), 0). |
| |
| @__force_order = external hidden global i32, align 4 |
| define void @pr11078(i32* %pgd) nounwind { |
| entry: |
| %t0 = load i32* %pgd, align 4 |
| %and2 = and i32 %t0, 1 |
| %tobool = icmp eq i32 %and2, 0 |
| br i1 %tobool, label %if.then, label %if.end |
| |
| if.then: |
| %t1 = tail call i32 asm sideeffect "bar", "=r,=*m,~{dirflag},~{fpsr},~{flags}"(i32* @__force_order) nounwind |
| br label %if.end |
| |
| if.end: |
| %t6 = inttoptr i32 %t0 to i64* |
| %t11 = tail call i64 asm sideeffect "foo", "=*m,=A,{bx},{cx},1,~{memory},~{dirflag},~{fpsr},~{flags}"(i64* %t6, i32 0, i32 0, i64 0) nounwind |
| ret void |
| } |
