| ; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu \ |
| ; RUN: -ppc-asm-full-reg-names -ppc-vsr-nums-as-vr < %s | FileCheck %s |
| ; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr8 \ |
| ; RUN: -ppc-asm-full-reg-names -ppc-vsr-nums-as-vr < %s | FileCheck %s |
| |
| |
| ; For known CRBit spills, CRSET/CRUNSET, it is more efficient to just load and |
| ; spill the known value. These tests verify that for CRSET and CRUNSET spills |
| ; we do not extract the bit for spilling. |
| |
| %struct.anon = type { i32 } |
| |
| @b = common dso_local global %struct.anon* null, align 8 |
| @a = common dso_local global i64 0, align 8 |
| |
| ; Function Attrs: nounwind |
| define dso_local signext i32 @spillCRSET(i32 signext %p1, i32 signext %p2) { |
| ; CHECK-LABEL: spillCRSET: |
| ; CHECK: # %bb.2: |
| ; CHECK-DAG: crnor [[CREG:.*]]*cr5+lt, eq, eq |
| ; CHECK-DAG: mfocrf [[REG2:.*]], [[CREG]] |
| ; CHECK-DAG: rlwinm [[REG2]], [[REG2]] |
| ; CHECK: .LBB0_3: |
| ; CHECK-DAG: creqv [[CREG:.*]]*cr5+lt, [[CREG]]*cr5+lt, [[CREG]]*cr5+lt |
| ; CHECK: lis [[REG1:.*]], -32768 |
| ; CHECK: .LBB0_4: |
| ; CHECK-NOT: mfocrf [[REG2:.*]], [[CREG]] |
| ; CHECK-NOT: rlwinm [[REG2]], [[REG2]] |
| ; CHECK: stw [[REG1]] |
| ; CHECK: # %bb.5: |
| |
| entry: |
| %tobool = icmp eq i32 %p2, 0 |
| %tobool2 = icmp eq i32 %p1, 0 |
| br label %redo_first_pass |
| |
| redo_first_pass: ; preds = %for.end, %entry |
| br i1 %tobool, label %if.end, label %if.then |
| |
| if.then: ; preds = %redo_first_pass |
| %call = tail call signext i32 bitcast (i32 (...)* @fn2 to i32 ()*)() #2 |
| %tobool1 = icmp ne i32 %call, 0 |
| br label %if.end |
| |
| if.end: ; preds = %redo_first_pass, %if.then |
| %c.1.off0 = phi i1 [ %tobool1, %if.then ], [ true, %redo_first_pass ] |
| br i1 %tobool2, label %if.end4, label %if.then3 |
| |
| if.then3: ; preds = %if.end |
| %0 = load %struct.anon*, %struct.anon** @b, align 8 |
| %contains_i = getelementptr inbounds %struct.anon, %struct.anon* %0, i64 0, i32 0 |
| store i32 1, i32* %contains_i, align 4 |
| br label %if.end4 |
| |
| if.end4: ; preds = %if.end, %if.then3 |
| tail call void asm sideeffect "#DO_NOTHING", "~{cr0},~{cr1},~{cr2},~{cr3},~{cr4},~{cr5},~{cr6},~{cr7}"() |
| br i1 %c.1.off0, label %if.then6, label %if.end13 |
| |
| if.then6: ; preds = %if.end4 |
| %1 = load i64, i64* @a, align 8 |
| %cmp21 = icmp eq i64 %1, 0 |
| br i1 %cmp21, label %if.end13, label %for.body |
| |
| for.body: ; preds = %if.then6, %for.body |
| %s.122 = phi i64 [ %inc, %for.body ], [ 0, %if.then6 ] |
| %call7 = tail call signext i32 bitcast (i32 (...)* @fn3 to i32 ()*)() |
| %inc = add nuw i64 %s.122, 1 |
| %exitcond = icmp eq i64 %inc, %1 |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body |
| br i1 %cmp21, label %if.end13, label %redo_first_pass |
| |
| if.end13: ; preds = %if.then6, %for.end, %if.end4 |
| ret i32 0 |
| } |
| |
| %struct.p5rx = type { i32 } |
| |
| ; Function Attrs: nounwind |
| define dso_local signext i32 @spillCRUNSET(%struct.p5rx* readonly %p1, i32 signext %p2, i32 signext %p3) { |
| ; CHECK-LABEL: spillCRUNSET: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-DAG: crxor [[CREG:.*]]*cr5+lt, [[CREG]]*cr5+lt, [[CREG]]*cr5+lt |
| ; CHECK-DAG: li [[REG1:.*]], 0 |
| ; CHECK-NOT: mfocrf [[REG2:.*]], [[CREG]] |
| ; CHECK-NOT: rlwinm [[REG2]], [[REG2]] |
| ; CHECK: stw [[REG1]] |
| ; CHECK: .LBB1_1: |
| entry: |
| %and = and i32 %p3, 128 |
| %tobool = icmp eq i32 %and, 0 |
| %tobool2 = icmp eq %struct.p5rx* %p1, null |
| %sv_any = getelementptr inbounds %struct.p5rx, %struct.p5rx* %p1, i64 0, i32 0 |
| %tobool12 = icmp eq i32 %p2, 0 |
| br label %redo_first_pass |
| |
| redo_first_pass: ; preds = %if.end11, %entry |
| %a.0.off0 = phi i1 [ false, %entry ], [ %a.1.off0, %if.end11 ] |
| br i1 %tobool, label %if.end, label %if.then |
| |
| if.then: ; preds = %redo_first_pass |
| %call = tail call signext i32 bitcast (i32 (...)* @fn2 to i32 ()*)() |
| %tobool1 = icmp ne i32 %call, 0 |
| br label %if.end |
| |
| if.end: ; preds = %redo_first_pass, %if.then |
| %a.1.off0 = phi i1 [ %tobool1, %if.then ], [ %a.0.off0, %redo_first_pass ] |
| tail call void asm sideeffect "#DO_NOTHING", "~{cr0},~{cr1},~{cr2},~{cr3},~{cr4},~{cr5},~{cr6},~{cr7}"() |
| br i1 %tobool2, label %if.end11, label %land.lhs.true |
| |
| land.lhs.true: ; preds = %if.end |
| %call3 = tail call signext i32 bitcast (i32 (...)* @fn3 to i32 ()*)() |
| %tobool4 = icmp eq i32 %call3, 0 |
| br i1 %tobool4, label %if.end11, label %land.lhs.true5 |
| |
| land.lhs.true5: ; preds = %land.lhs.true |
| %0 = load i32, i32* %sv_any, align 4 |
| %tobool6 = icmp eq i32 %0, 0 |
| %a.1.off0.not = xor i1 %a.1.off0, true |
| %brmerge = or i1 %tobool6, %a.1.off0.not |
| br i1 %brmerge, label %if.end11, label %if.then9 |
| |
| if.then9: ; preds = %land.lhs.true5 |
| %call10 = tail call signext i32 bitcast (i32 (...)* @fn4 to i32 ()*)() |
| br label %if.end11 |
| |
| if.end11: ; preds = %land.lhs.true5, %land.lhs.true, %if.end, %if.then9 |
| br i1 %tobool12, label %if.end14, label %redo_first_pass |
| |
| if.end14: ; preds = %if.end11 |
| ret i32 0 |
| } |
| |
| declare signext i32 @fn2(...) |
| declare signext i32 @fn3(...) |
| declare signext i32 @fn4(...) |
