Index: lib/Target/AArch64/AArch64ISelLowering.cpp =================================================================== --- lib/Target/AArch64/AArch64ISelLowering.cpp +++ lib/Target/AArch64/AArch64ISelLowering.cpp @@ -540,6 +540,8 @@ setTargetDAGCombine(ISD::SIGN_EXTEND); setTargetDAGCombine(ISD::VSELECT); + + MaskAndBranchFoldingIsLegal = true; } EVT AArch64TargetLowering::getSetCCResultType(LLVMContext &, EVT VT) const { Index: test/CodeGen/AArch64/andCmpBrToTBZ.ll =================================================================== --- /dev/null +++ test/CodeGen/AArch64/andCmpBrToTBZ.ll @@ -0,0 +1,72 @@ +; RUN: llc -O1 -march=aarch64 -enable-andcmp-sinking=true < %s | FileCheck %s +; ModuleID = 'and-cbz-extr-mr.bc' +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-n32:64-S128" +target triple = "aarch64-none-linux-gnu" + +define zeroext i1 @foo(i1 %IsEditable, i1 %isTextField, i8* %str1, i8* %str2, i8* %str3, i8* %str4, i8* %str5, i8* %str6, i8* %str7, i8* %str8, i8* %str9, i8* %str10, i8* %str11, i8* %str12, i8* %str13, i32 %int1, i8* %str14) unnamed_addr #0 align 2 { +; CHECK: foo: +entry: + %tobool = icmp eq i8* %str14, null + br i1 %tobool, label %return, label %if.end + +; CHECK: %if.end +; CHECK: tbz +if.end: ; preds = %entry + %and.i.i.i = and i32 %int1, 4 + %tobool.i.i.i = icmp eq i32 %and.i.i.i, 0 + br i1 %tobool.i.i.i, label %if.end12, label %land.rhs.i + +land.rhs.i: ; preds = %if.end + %cmp.i.i.i = icmp eq i8* %str12, %str13 + br i1 %cmp.i.i.i, label %if.then3, label %lor.rhs.i.i.i + +lor.rhs.i.i.i: ; preds = %land.rhs.i + %cmp.i13.i.i.i = icmp eq i8* %str10, %str11 + br i1 %cmp.i13.i.i.i, label %_ZNK7WebCore4Node10hasTagNameERKNS_13QualifiedNameE.exit, label %if.end5 + +_ZNK7WebCore4Node10hasTagNameERKNS_13QualifiedNameE.exit: ; preds = %lor.rhs.i.i.i + %cmp.i.i.i.i = icmp eq i8* %str8, %str9 + br i1 %cmp.i.i.i.i, label %if.then3, label %if.end5 + +if.then3: ; preds = %_ZNK7WebCore4Node10hasTagNameERKNS_13QualifiedNameE.exit, %land.rhs.i + %tmp11 = load i8* %str14, align 8 + %tmp12 = and i8 %tmp11, 2 + %tmp13 = icmp ne i8 %tmp12, 0 + br label %return + +if.end5: ; preds = %_ZNK7WebCore4Node10hasTagNameERKNS_13QualifiedNameE.exit, %lor.rhs.i.i.i +; CHECK: %if.end5 +; CHECK: tbz + br i1 %tobool.i.i.i, label %if.end12, label %land.rhs.i19 + +land.rhs.i19: ; preds = %if.end5 + %cmp.i.i.i18 = icmp eq i8* %str6, %str7 + br i1 %cmp.i.i.i18, label %if.then7, label %lor.rhs.i.i.i23 + +lor.rhs.i.i.i23: ; preds = %land.rhs.i19 + %cmp.i13.i.i.i22 = icmp eq i8* %str3, %str4 + br i1 %cmp.i13.i.i.i22, label %_ZNK7WebCore4Node10hasTagNameERKNS_13QualifiedNameE.exit28, label %if.end12 + +_ZNK7WebCore4Node10hasTagNameERKNS_13QualifiedNameE.exit28: ; preds = %lor.rhs.i.i.i23 + %cmp.i.i.i.i26 = icmp eq i8* %str1, %str2 + br i1 %cmp.i.i.i.i26, label %if.then7, label %if.end12 + +if.then7: ; preds = %_ZNK7WebCore4Node10hasTagNameERKNS_13QualifiedNameE.exit28, %land.rhs.i19 + br i1 %isTextField, label %if.then9, label %if.end12 + +if.then9: ; preds = %if.then7 + %tmp23 = load i8* %str5, align 8 + %tmp24 = and i8 %tmp23, 2 + %tmp25 = icmp ne i8 %tmp24, 0 + br label %return + +if.end12: ; preds = %if.then7, %_ZNK7WebCore4Node10hasTagNameERKNS_13QualifiedNameE.exit28, %lor.rhs.i.i.i23, %if.end5, %if.end + %lnot = xor i1 %IsEditable, true + br label %return + +return: ; preds = %if.end12, %if.then9, %if.then3, %entry + %retval.0 = phi i1 [ %tmp13, %if.then3 ], [ %tmp25, %if.then9 ], [ %lnot, %if.end12 ], [ true, %entry ] + ret i1 %retval.0 +} + +attributes #0 = { nounwind ssp }